Table of Contents
A
Aalen, Reidunn B.
- Open AccessThe EPIP Peptide of INFLORESCENCE DEFICIENT IN ABSCISSION Is Sufficient to Induce Abscission in Arabidopsis through the Receptor-Like Kinases HAESA and HAESA-LIKE2Grethe-Elisabeth Stenvik, Nora M. Tandstad, Yongfeng Guo, Chun-Lin Shi, Wenche Kristiansen, Asbjørn Holmgren, Steven E. Clark, Reidunn B. Aalen, Melinka A. ButenkoPlant Cell Jul 2008, 20 (7) 1805-1817; DOI: https://doi.org/10.1105/tpc.108.059139
Cell separation allows plants to shed entire organs. In Arabidopsis, the IDA gene is required for abscission of floral organs (e.g., petals). A peptide present in IDA and related IDA-LIKE (IDL) proteins is sufficient for IDA function. Genetic evidence suggests that IDA and IDL proteins are ligands that act through membrane-bound receptors to control cell separation events during plant development.
AbuQamar, Synan
- You have accessRestricted AccessTomato Protein Kinase 1b Mediates Signaling of Plant Responses to Necrotrophic Fungi and Insect HerbivorySynan AbuQamar, Mao-Feng Chai, Hongli Luo, Fengming Song, Tesfaye MengistePlant Cell Jul 2008, 20 (7) 1964-1983; DOI: https://doi.org/10.1105/tpc.108.059477
Tomato Protein Kinase 1b (TPK1b) regulates ethylene-mediated defense against pathogens and insect pests. TPK1b RNA interference plants show increased susceptibility to Botrytis infection and insect feeding and are impaired in ethylene responses. These impaired responses correlate with reduced expression of proteinase inhibitor II in response to Botrytis and 1-aminocyclopropane-1-carboxylic acid.
Alsheikh, Muath
- You have accessRestricted AccessMutations in SUPPRESSOR OF VARIEGATION1, a Factor Required for Normal Chloroplast Translation, Suppress var2-Mediated Leaf Variegation in ArabidopsisFei Yu, Xiayan Liu, Muath Alsheikh, Sungsoon Park, Steve RodermelPlant Cell Jul 2008, 20 (7) 1786-1804; DOI: https://doi.org/10.1105/tpc.107.054965
The Arabidopsis var2 variegation mutant has green-and white-sectored leaves due to lack of VAR2, a chloroplast FtsH metalloprotease. Variegation can be suppressed in var2 by impaired chloroplast translation caused by lesions in SVR1 and SVR2, nuclear genes that encode a chloroplast pseudouridine synthase and the ClpR1 subunit of the chloroplast Clp protease, respectively.
Altamura, Maria Maddalena
- You have accessRestricted AccessAuxin Regulates Arabidopsis Anther Dehiscence, Pollen Maturation, and Filament ElongationValentina Cecchetti, Maria Maddalena Altamura, Giuseppina Falasca, Paolo Costantino, Maura CardarelliPlant Cell Jul 2008, 20 (7) 1760-1774; DOI: https://doi.org/10.1105/tpc.107.057570
This work shows that auxin regulates late development processes in stamens, coordinating anther dehiscence and pollen maturation and independently triggering filament elongation. In addition, auxin, which is mainly synthesized in the anthers by YUC proteins before the inception of late processes, is perceived by the TIR1 AFB receptors when late processes begin.
Arredondo, Felipe D.
- You have accessRestricted AccessRXLR-Mediated Entry of Phytophthora sojae Effector Avr1b into Soybean Cells Does Not Require Pathogen-Encoded MachineryDaolong Dou, Shiv D. Kale, Xia Wang, Rays H.Y. Jiang, Nathan A. Bruce, Felipe D. Arredondo, Xuemin Zhang, Brett M. TylerPlant Cell Jul 2008, 20 (7) 1930-1947; DOI: https://doi.org/10.1105/tpc.107.056093
In this study, the authors show that N-terminal RXLR and dEER motifs, together with flanking sequences, are necessary and sufficient to translocate oomycete effector proteins into host plant cells across the plasma cell membrane. Translocation occurs with purified proteins, indicating that no other pathogen machinery is required.
B
Baldwin, Ian T.
- You have accessRestricted AccessInduced Plant Defenses in the Natural Environment: Nicotiana attenuata WRKY3 and WRKY6 Coordinate Responses to HerbivoryMelanie Skibbe, Nan Qu, Ivan Galis, Ian T. BaldwinPlant Cell Jul 2008, 20 (7) 1984-2000; DOI: https://doi.org/10.1105/tpc.108.058594
WRKY transcription factors regulate plant responses to stress. This work describes two WRKY genes from Nicotiana attenuata that regulate jasmonate (JA) accumulation in response to wounding and herbivore-specific elicitors and JA-mediated defenses against herbivores in 3 years of fieldwork with plants silenced in WRKY expression in the plant's native habitat in the Great Basin Desert.
Bellini, Catherine
- You have accessRestricted AccessTowards a Systematic Validation of References in Real-Time RT-PCRLaurent Gutierrez, Mélanie Mauriat, Jérôme Pelloux, Catherine Bellini, Olivier Van WuytswinkelPlant Cell Jul 2008, 20 (7) 1734-1735; DOI: https://doi.org/10.1105/tpc.108.059774
Boeren, Sjef
- Open AccessThe Cladosporium fulvum Virulence Protein Avr2 Inhibits Host Proteases Required for Basal DefenseH. Peter van Esse, John W. van't Klooster, Melvin D. Bolton, Koste A. Yadeta, Peter van Baarlen, Sjef Boeren, Jacques Vervoort, Pierre J.G.M. de Wit, Bart P.H.J. ThommaPlant Cell Jul 2008, 20 (7) 1948-1963; DOI: https://doi.org/10.1105/tpc.108.059394
The fungus Cladosporium fulvum secretes the effector protein Avr2 during infection of tomato. This work shows that Avr2 interacts with several extracellular Cys proteases in tomato and Arabidopsis. Avr2 expression causes enhanced susceptibility towards several pathogens in both plant species, and, with RNAi-mediated gene silencing in C. fulvum, it is shown that Avr2 is a genuine virulence factor.
Bogenschutz, Naomi L.
- Open AccessSCREAM/ICE1 and SCREAM2 Specify Three Cell-State Transitional Steps Leading to Arabidopsis Stomatal DifferentiationMasahiro M. Kanaoka, Lynn Jo Pillitteri, Hiroaki Fujii, Yuki Yoshida, Naomi L. Bogenschutz, Junji Takabayashi, Jian-Kang Zhu, Keiko U. ToriiPlant Cell Jul 2008, 20 (7) 1775-1785; DOI: https://doi.org/10.1105/tpc.108.060848
Stomata are formed through a series of events: initiation, proliferation, and terminal differentiation. This work identifies the upstream regulator of the cold-induced transcriptome as the core component of stomatal differentiation and suggests a model strikingly similar to cell-type differentiation in animals.
Bolton, Melvin D.
- Open AccessThe Cladosporium fulvum Virulence Protein Avr2 Inhibits Host Proteases Required for Basal DefenseH. Peter van Esse, John W. van't Klooster, Melvin D. Bolton, Koste A. Yadeta, Peter van Baarlen, Sjef Boeren, Jacques Vervoort, Pierre J.G.M. de Wit, Bart P.H.J. ThommaPlant Cell Jul 2008, 20 (7) 1948-1963; DOI: https://doi.org/10.1105/tpc.108.059394
The fungus Cladosporium fulvum secretes the effector protein Avr2 during infection of tomato. This work shows that Avr2 interacts with several extracellular Cys proteases in tomato and Arabidopsis. Avr2 expression causes enhanced susceptibility towards several pathogens in both plant species, and, with RNAi-mediated gene silencing in C. fulvum, it is shown that Avr2 is a genuine virulence factor.
Boudet, Julie
- Open AccessDolichol Biosynthesis and Its Effects on the Unfolded Protein Response and Abiotic Stress Resistance in ArabidopsisHairong Zhang, Kiyoshi Ohyama, Julie Boudet, Zhizhong Chen, Jilai Yang, Min Zhang, Toshiya Muranaka, Christophe Maurel, Jian-Kang Zhu, Zhizhong GongPlant Cell Jul 2008, 20 (7) 1879-1898; DOI: https://doi.org/10.1105/tpc.108.061150
This work describes the isolation and biochemical characterization of the leaf wilting1 (lew1) gene that is responsible for the biosynthesis of dolichols in Arabidopsis. Genetic, molecular, and physiological analyses of the glycosylation defective lew1 mutant show that drought stress signaling converges with endoplasmic reticulum (ER) signaling to regulate ER/UPR (unfolded protein response) and osmotic stress responses.
Bouwmeester, Klaas
- You have accessRestricted AccessEffector Trafficking: RXLR-dEER as Extra Gear for Delivery into Plant CellsFrancine Govers, Klaas BouwmeesterPlant Cell Jul 2008, 20 (7) 1728-1730; DOI: https://doi.org/10.1105/tpc.108.062075
Bruce, Nathan A.
- You have accessRestricted AccessRXLR-Mediated Entry of Phytophthora sojae Effector Avr1b into Soybean Cells Does Not Require Pathogen-Encoded MachineryDaolong Dou, Shiv D. Kale, Xia Wang, Rays H.Y. Jiang, Nathan A. Bruce, Felipe D. Arredondo, Xuemin Zhang, Brett M. TylerPlant Cell Jul 2008, 20 (7) 1930-1947; DOI: https://doi.org/10.1105/tpc.107.056093
In this study, the authors show that N-terminal RXLR and dEER motifs, together with flanking sequences, are necessary and sufficient to translocate oomycete effector proteins into host plant cells across the plasma cell membrane. Translocation occurs with purified proteins, indicating that no other pathogen machinery is required.
Butenko, Melinka A.
- Open AccessThe EPIP Peptide of INFLORESCENCE DEFICIENT IN ABSCISSION Is Sufficient to Induce Abscission in Arabidopsis through the Receptor-Like Kinases HAESA and HAESA-LIKE2Grethe-Elisabeth Stenvik, Nora M. Tandstad, Yongfeng Guo, Chun-Lin Shi, Wenche Kristiansen, Asbjørn Holmgren, Steven E. Clark, Reidunn B. Aalen, Melinka A. ButenkoPlant Cell Jul 2008, 20 (7) 1805-1817; DOI: https://doi.org/10.1105/tpc.108.059139
Cell separation allows plants to shed entire organs. In Arabidopsis, the IDA gene is required for abscission of floral organs (e.g., petals). A peptide present in IDA and related IDA-LIKE (IDL) proteins is sufficient for IDA function. Genetic evidence suggests that IDA and IDL proteins are ligands that act through membrane-bound receptors to control cell separation events during plant development.
C
Cahoon, Edgar B.
- You have accessRestricted AccessSphingolipid Long-Chain Base Hydroxylation Is Important for Growth and Regulation of Sphingolipid Content and Composition in ArabidopsisMing Chen, Jonathan E. Markham, Charles R. Dietrich, Jan G. Jaworski, Edgar B. CahoonPlant Cell Jul 2008, 20 (7) 1862-1878; DOI: https://doi.org/10.1105/tpc.107.057851
Sphingolipids are essential components of endomembranes and regulators of programmed cell death. This work shows that loss of the C-4 hydroxyl group of sphingolipid long-chain bases (LCBs) in Arabidopsis severely reduces plant growth and increases the content of sphingolipids, primarily with C16 fatty acids. Thus, LCB hydroxylation is important in mediating growth and sphingolipid metabolism.
Cardarelli, Maura
- You have accessRestricted AccessAuxin Regulates Arabidopsis Anther Dehiscence, Pollen Maturation, and Filament ElongationValentina Cecchetti, Maria Maddalena Altamura, Giuseppina Falasca, Paolo Costantino, Maura CardarelliPlant Cell Jul 2008, 20 (7) 1760-1774; DOI: https://doi.org/10.1105/tpc.107.057570
This work shows that auxin regulates late development processes in stamens, coordinating anther dehiscence and pollen maturation and independently triggering filament elongation. In addition, auxin, which is mainly synthesized in the anthers by YUC proteins before the inception of late processes, is perceived by the TIR1 AFB receptors when late processes begin.
Cecchetti, Valentina
- You have accessRestricted AccessAuxin Regulates Arabidopsis Anther Dehiscence, Pollen Maturation, and Filament ElongationValentina Cecchetti, Maria Maddalena Altamura, Giuseppina Falasca, Paolo Costantino, Maura CardarelliPlant Cell Jul 2008, 20 (7) 1760-1774; DOI: https://doi.org/10.1105/tpc.107.057570
This work shows that auxin regulates late development processes in stamens, coordinating anther dehiscence and pollen maturation and independently triggering filament elongation. In addition, auxin, which is mainly synthesized in the anthers by YUC proteins before the inception of late processes, is perceived by the TIR1 AFB receptors when late processes begin.
Chai, Mao-Feng
- You have accessRestricted AccessTomato Protein Kinase 1b Mediates Signaling of Plant Responses to Necrotrophic Fungi and Insect HerbivorySynan AbuQamar, Mao-Feng Chai, Hongli Luo, Fengming Song, Tesfaye MengistePlant Cell Jul 2008, 20 (7) 1964-1983; DOI: https://doi.org/10.1105/tpc.108.059477
Tomato Protein Kinase 1b (TPK1b) regulates ethylene-mediated defense against pathogens and insect pests. TPK1b RNA interference plants show increased susceptibility to Botrytis infection and insect feeding and are impaired in ethylene responses. These impaired responses correlate with reduced expression of proteinase inhibitor II in response to Botrytis and 1-aminocyclopropane-1-carboxylic acid.
Chattopadhyay, Sudip
- You have accessRestricted AccessCalmodulin7 Plays an Important Role as Transcriptional Regulator in Arabidopsis Seedling DevelopmentRitu Kushwaha, Aparna Singh, Sudip ChattopadhyayPlant Cell Jul 2008, 20 (7) 1747-1759; DOI: https://doi.org/10.1105/tpc.107.057612
Calmodulin (CaM) plays multiple regulatory roles in eukaryotes. This study examines the transcriptional regulatory role of CAM7 in early seedling development in plants and further explores the concerted function of CAM7 and HY5 in the regulation of photomorphogenic growth and light-regulated gene expression.
Chen, Ming
- You have accessRestricted AccessSphingolipid Long-Chain Base Hydroxylation Is Important for Growth and Regulation of Sphingolipid Content and Composition in ArabidopsisMing Chen, Jonathan E. Markham, Charles R. Dietrich, Jan G. Jaworski, Edgar B. CahoonPlant Cell Jul 2008, 20 (7) 1862-1878; DOI: https://doi.org/10.1105/tpc.107.057851
Sphingolipids are essential components of endomembranes and regulators of programmed cell death. This work shows that loss of the C-4 hydroxyl group of sphingolipid long-chain bases (LCBs) in Arabidopsis severely reduces plant growth and increases the content of sphingolipids, primarily with C16 fatty acids. Thus, LCB hydroxylation is important in mediating growth and sphingolipid metabolism.
Chen, Saihua
- You have accessRestricted AccessBadh2, Encoding Betaine Aldehyde Dehydrogenase, Inhibits the Biosynthesis of 2-Acetyl-1-Pyrroline, a Major Component in Rice FragranceSaihua Chen, Yi Yang, Weiwei Shi, Qing Ji, Fei He, Ziding Zhang, Zhukuan Cheng, Xiangnong Liu, Mingliang XuPlant Cell Jul 2008, 20 (7) 1850-1861; DOI: https://doi.org/10.1105/tpc.108.058917
2-acetyl-1-pyrroline (2AP) is a potent flavor component that gives fragrant rice varieties a distinctive flavor. This study shows that a functional Badh2 allele present in nonfragrant rice varieties encodes an enzyme that inhibits 2AP synthesis by exhausting its precursor, whereas null badh2 alleles, found in fragrant rice varieties, result in 2AP accumulation due to a lack of active BADH2 enzyme.
Chen, Zhizhong
- Open AccessDolichol Biosynthesis and Its Effects on the Unfolded Protein Response and Abiotic Stress Resistance in ArabidopsisHairong Zhang, Kiyoshi Ohyama, Julie Boudet, Zhizhong Chen, Jilai Yang, Min Zhang, Toshiya Muranaka, Christophe Maurel, Jian-Kang Zhu, Zhizhong GongPlant Cell Jul 2008, 20 (7) 1879-1898; DOI: https://doi.org/10.1105/tpc.108.061150
This work describes the isolation and biochemical characterization of the leaf wilting1 (lew1) gene that is responsible for the biosynthesis of dolichols in Arabidopsis. Genetic, molecular, and physiological analyses of the glycosylation defective lew1 mutant show that drought stress signaling converges with endoplasmic reticulum (ER) signaling to regulate ER/UPR (unfolded protein response) and osmotic stress responses.
Cheng, Zhukuan
- You have accessRestricted AccessBadh2, Encoding Betaine Aldehyde Dehydrogenase, Inhibits the Biosynthesis of 2-Acetyl-1-Pyrroline, a Major Component in Rice FragranceSaihua Chen, Yi Yang, Weiwei Shi, Qing Ji, Fei He, Ziding Zhang, Zhukuan Cheng, Xiangnong Liu, Mingliang XuPlant Cell Jul 2008, 20 (7) 1850-1861; DOI: https://doi.org/10.1105/tpc.108.058917
2-acetyl-1-pyrroline (2AP) is a potent flavor component that gives fragrant rice varieties a distinctive flavor. This study shows that a functional Badh2 allele present in nonfragrant rice varieties encodes an enzyme that inhibits 2AP synthesis by exhausting its precursor, whereas null badh2 alleles, found in fragrant rice varieties, result in 2AP accumulation due to a lack of active BADH2 enzyme.
Cho, Seok Keun
- You have accessRestricted AccessArabidopsis PUB22 and PUB23 Are Homologous U-Box E3 Ubiquitin Ligases That Play Combinatory Roles in Response to Drought StressSeok Keun Cho, Moon Young Ryu, Charlotte Song, June M. Kwak, Woo Taek KimPlant Cell Jul 2008, 20 (7) 1899-1914; DOI: https://doi.org/10.1105/tpc.108.060699
Arabidopsis PUB22 and PUB23 encode U-box–containing E3 ubiquitin ligases that are coordinately induced by abiotic stress and interact with a proteasomal subunit. Loss-of-function mutants show increased tolerance to drought stress, while overexpression increases drought sensitivity. This indicates that PUB22 and PUB23 act coordinately to negatively regulate a drought stress signaling pathway.
Clark, Steven E.
- Open AccessThe EPIP Peptide of INFLORESCENCE DEFICIENT IN ABSCISSION Is Sufficient to Induce Abscission in Arabidopsis through the Receptor-Like Kinases HAESA and HAESA-LIKE2Grethe-Elisabeth Stenvik, Nora M. Tandstad, Yongfeng Guo, Chun-Lin Shi, Wenche Kristiansen, Asbjørn Holmgren, Steven E. Clark, Reidunn B. Aalen, Melinka A. ButenkoPlant Cell Jul 2008, 20 (7) 1805-1817; DOI: https://doi.org/10.1105/tpc.108.059139
Cell separation allows plants to shed entire organs. In Arabidopsis, the IDA gene is required for abscission of floral organs (e.g., petals). A peptide present in IDA and related IDA-LIKE (IDL) proteins is sufficient for IDA function. Genetic evidence suggests that IDA and IDL proteins are ligands that act through membrane-bound receptors to control cell separation events during plant development.
Collakova, Eva
- Open AccessArabidopsis 10-Formyl Tetrahydrofolate Deformylases Are Essential for PhotorespirationEva Collakova, Aymeric Goyer, Valeria Naponelli, Inga Krassovskaya, Jesse F. Gregory III, Andrew D. Hanson, Yair Shachar-HillPlant Cell Jul 2008, 20 (7) 1818-1832; DOI: https://doi.org/10.1105/tpc.108.058701
This work demonstrates the importance of mitochondrial 10-formyl tetrahydrofolate (THF) deformylase and bifunctional 5,10-methylene THF dehydrogenase/5,10-methenyl THF cyclohydrolase in photorespiration. A model showing the involvement of these folate interconversion enzymes in photorespiration is proposed.
Costantino, Paolo
- You have accessRestricted AccessAuxin Regulates Arabidopsis Anther Dehiscence, Pollen Maturation, and Filament ElongationValentina Cecchetti, Maria Maddalena Altamura, Giuseppina Falasca, Paolo Costantino, Maura CardarelliPlant Cell Jul 2008, 20 (7) 1760-1774; DOI: https://doi.org/10.1105/tpc.107.057570
This work shows that auxin regulates late development processes in stamens, coordinating anther dehiscence and pollen maturation and independently triggering filament elongation. In addition, auxin, which is mainly synthesized in the anthers by YUC proteins before the inception of late processes, is perceived by the TIR1 AFB receptors when late processes begin.
Czechowski, Tomasz
- You have accessRestricted AccessEleven Golden Rules of Quantitative RT-PCRMichael K. Udvardi, Tomasz Czechowski, Wolf-Rüdiger ScheiblePlant Cell Jul 2008, 20 (7) 1736-1737; DOI: https://doi.org/10.1105/tpc.108.061143
D
De Smet, Ive
- You have accessRestricted AccessThe Evolving Complexity of the Auxin PathwaySteffen Lau, Gerd Jürgens, Ive De SmetPlant Cell Jul 2008, 20 (7) 1738-1746; DOI: https://doi.org/10.1105/tpc.108.060418
de Wit, Pierre J.G.M.
- Open AccessThe Cladosporium fulvum Virulence Protein Avr2 Inhibits Host Proteases Required for Basal DefenseH. Peter van Esse, John W. van't Klooster, Melvin D. Bolton, Koste A. Yadeta, Peter van Baarlen, Sjef Boeren, Jacques Vervoort, Pierre J.G.M. de Wit, Bart P.H.J. ThommaPlant Cell Jul 2008, 20 (7) 1948-1963; DOI: https://doi.org/10.1105/tpc.108.059394
The fungus Cladosporium fulvum secretes the effector protein Avr2 during infection of tomato. This work shows that Avr2 interacts with several extracellular Cys proteases in tomato and Arabidopsis. Avr2 expression causes enhanced susceptibility towards several pathogens in both plant species, and, with RNAi-mediated gene silencing in C. fulvum, it is shown that Avr2 is a genuine virulence factor.
Dietrich, Charles R.
- You have accessRestricted AccessSphingolipid Long-Chain Base Hydroxylation Is Important for Growth and Regulation of Sphingolipid Content and Composition in ArabidopsisMing Chen, Jonathan E. Markham, Charles R. Dietrich, Jan G. Jaworski, Edgar B. CahoonPlant Cell Jul 2008, 20 (7) 1862-1878; DOI: https://doi.org/10.1105/tpc.107.057851
Sphingolipids are essential components of endomembranes and regulators of programmed cell death. This work shows that loss of the C-4 hydroxyl group of sphingolipid long-chain bases (LCBs) in Arabidopsis severely reduces plant growth and increases the content of sphingolipids, primarily with C16 fatty acids. Thus, LCB hydroxylation is important in mediating growth and sphingolipid metabolism.
Dou, Daolong
- You have accessRestricted AccessRXLR-Mediated Entry of Phytophthora sojae Effector Avr1b into Soybean Cells Does Not Require Pathogen-Encoded MachineryDaolong Dou, Shiv D. Kale, Xia Wang, Rays H.Y. Jiang, Nathan A. Bruce, Felipe D. Arredondo, Xuemin Zhang, Brett M. TylerPlant Cell Jul 2008, 20 (7) 1930-1947; DOI: https://doi.org/10.1105/tpc.107.056093
In this study, the authors show that N-terminal RXLR and dEER motifs, together with flanking sequences, are necessary and sufficient to translocate oomycete effector proteins into host plant cells across the plasma cell membrane. Translocation occurs with purified proteins, indicating that no other pathogen machinery is required.
E
Eckardt, Nancy A.
- You have accessRestricted AccessAuxin Regulation of Late Stamen DevelopmentNancy A. EckardtPlant Cell Jul 2008, 20 (7) 1733; DOI: https://doi.org/10.1105/tpc.108.200712
F
Falasca, Giuseppina
- You have accessRestricted AccessAuxin Regulates Arabidopsis Anther Dehiscence, Pollen Maturation, and Filament ElongationValentina Cecchetti, Maria Maddalena Altamura, Giuseppina Falasca, Paolo Costantino, Maura CardarelliPlant Cell Jul 2008, 20 (7) 1760-1774; DOI: https://doi.org/10.1105/tpc.107.057570
This work shows that auxin regulates late development processes in stamens, coordinating anther dehiscence and pollen maturation and independently triggering filament elongation. In addition, auxin, which is mainly synthesized in the anthers by YUC proteins before the inception of late processes, is perceived by the TIR1 AFB receptors when late processes begin.
Fujii, Hiroaki
- Open AccessSCREAM/ICE1 and SCREAM2 Specify Three Cell-State Transitional Steps Leading to Arabidopsis Stomatal DifferentiationMasahiro M. Kanaoka, Lynn Jo Pillitteri, Hiroaki Fujii, Yuki Yoshida, Naomi L. Bogenschutz, Junji Takabayashi, Jian-Kang Zhu, Keiko U. ToriiPlant Cell Jul 2008, 20 (7) 1775-1785; DOI: https://doi.org/10.1105/tpc.108.060848
Stomata are formed through a series of events: initiation, proliferation, and terminal differentiation. This work identifies the upstream regulator of the cold-induced transcriptome as the core component of stomatal differentiation and suggests a model strikingly similar to cell-type differentiation in animals.
Fujita, Naoko
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
G
Galis, Ivan
- You have accessRestricted AccessInduced Plant Defenses in the Natural Environment: Nicotiana attenuata WRKY3 and WRKY6 Coordinate Responses to HerbivoryMelanie Skibbe, Nan Qu, Ivan Galis, Ian T. BaldwinPlant Cell Jul 2008, 20 (7) 1984-2000; DOI: https://doi.org/10.1105/tpc.108.058594
WRKY transcription factors regulate plant responses to stress. This work describes two WRKY genes from Nicotiana attenuata that regulate jasmonate (JA) accumulation in response to wounding and herbivore-specific elicitors and JA-mediated defenses against herbivores in 3 years of fieldwork with plants silenced in WRKY expression in the plant's native habitat in the Great Basin Desert.
Gong, Zhizhong
- Open AccessDolichol Biosynthesis and Its Effects on the Unfolded Protein Response and Abiotic Stress Resistance in ArabidopsisHairong Zhang, Kiyoshi Ohyama, Julie Boudet, Zhizhong Chen, Jilai Yang, Min Zhang, Toshiya Muranaka, Christophe Maurel, Jian-Kang Zhu, Zhizhong GongPlant Cell Jul 2008, 20 (7) 1879-1898; DOI: https://doi.org/10.1105/tpc.108.061150
This work describes the isolation and biochemical characterization of the leaf wilting1 (lew1) gene that is responsible for the biosynthesis of dolichols in Arabidopsis. Genetic, molecular, and physiological analyses of the glycosylation defective lew1 mutant show that drought stress signaling converges with endoplasmic reticulum (ER) signaling to regulate ER/UPR (unfolded protein response) and osmotic stress responses.
Govers, Francine
- You have accessRestricted AccessEffector Trafficking: RXLR-dEER as Extra Gear for Delivery into Plant CellsFrancine Govers, Klaas BouwmeesterPlant Cell Jul 2008, 20 (7) 1728-1730; DOI: https://doi.org/10.1105/tpc.108.062075
Goyer, Aymeric
- Open AccessArabidopsis 10-Formyl Tetrahydrofolate Deformylases Are Essential for PhotorespirationEva Collakova, Aymeric Goyer, Valeria Naponelli, Inga Krassovskaya, Jesse F. Gregory III, Andrew D. Hanson, Yair Shachar-HillPlant Cell Jul 2008, 20 (7) 1818-1832; DOI: https://doi.org/10.1105/tpc.108.058701
This work demonstrates the importance of mitochondrial 10-formyl tetrahydrofolate (THF) deformylase and bifunctional 5,10-methylene THF dehydrogenase/5,10-methenyl THF cyclohydrolase in photorespiration. A model showing the involvement of these folate interconversion enzymes in photorespiration is proposed.
Gregory, Jesse F.
- Open AccessArabidopsis 10-Formyl Tetrahydrofolate Deformylases Are Essential for PhotorespirationEva Collakova, Aymeric Goyer, Valeria Naponelli, Inga Krassovskaya, Jesse F. Gregory III, Andrew D. Hanson, Yair Shachar-HillPlant Cell Jul 2008, 20 (7) 1818-1832; DOI: https://doi.org/10.1105/tpc.108.058701
This work demonstrates the importance of mitochondrial 10-formyl tetrahydrofolate (THF) deformylase and bifunctional 5,10-methylene THF dehydrogenase/5,10-methenyl THF cyclohydrolase in photorespiration. A model showing the involvement of these folate interconversion enzymes in photorespiration is proposed.
Guo, Yongfeng
- Open AccessThe EPIP Peptide of INFLORESCENCE DEFICIENT IN ABSCISSION Is Sufficient to Induce Abscission in Arabidopsis through the Receptor-Like Kinases HAESA and HAESA-LIKE2Grethe-Elisabeth Stenvik, Nora M. Tandstad, Yongfeng Guo, Chun-Lin Shi, Wenche Kristiansen, Asbjørn Holmgren, Steven E. Clark, Reidunn B. Aalen, Melinka A. ButenkoPlant Cell Jul 2008, 20 (7) 1805-1817; DOI: https://doi.org/10.1105/tpc.108.059139
Cell separation allows plants to shed entire organs. In Arabidopsis, the IDA gene is required for abscission of floral organs (e.g., petals). A peptide present in IDA and related IDA-LIKE (IDL) proteins is sufficient for IDA function. Genetic evidence suggests that IDA and IDL proteins are ligands that act through membrane-bound receptors to control cell separation events during plant development.
Gutierrez, Laurent
- You have accessRestricted AccessTowards a Systematic Validation of References in Real-Time RT-PCRLaurent Gutierrez, Mélanie Mauriat, Jérôme Pelloux, Catherine Bellini, Olivier Van WuytswinkelPlant Cell Jul 2008, 20 (7) 1734-1735; DOI: https://doi.org/10.1105/tpc.108.059774
H
Hanson, Andrew D.
- Open AccessArabidopsis 10-Formyl Tetrahydrofolate Deformylases Are Essential for PhotorespirationEva Collakova, Aymeric Goyer, Valeria Naponelli, Inga Krassovskaya, Jesse F. Gregory III, Andrew D. Hanson, Yair Shachar-HillPlant Cell Jul 2008, 20 (7) 1818-1832; DOI: https://doi.org/10.1105/tpc.108.058701
This work demonstrates the importance of mitochondrial 10-formyl tetrahydrofolate (THF) deformylase and bifunctional 5,10-methylene THF dehydrogenase/5,10-methenyl THF cyclohydrolase in photorespiration. A model showing the involvement of these folate interconversion enzymes in photorespiration is proposed.
He, Fei
- You have accessRestricted AccessBadh2, Encoding Betaine Aldehyde Dehydrogenase, Inhibits the Biosynthesis of 2-Acetyl-1-Pyrroline, a Major Component in Rice FragranceSaihua Chen, Yi Yang, Weiwei Shi, Qing Ji, Fei He, Ziding Zhang, Zhukuan Cheng, Xiangnong Liu, Mingliang XuPlant Cell Jul 2008, 20 (7) 1850-1861; DOI: https://doi.org/10.1105/tpc.108.058917
2-acetyl-1-pyrroline (2AP) is a potent flavor component that gives fragrant rice varieties a distinctive flavor. This study shows that a functional Badh2 allele present in nonfragrant rice varieties encodes an enzyme that inhibits 2AP synthesis by exhausting its precursor, whereas null badh2 alleles, found in fragrant rice varieties, result in 2AP accumulation due to a lack of active BADH2 enzyme.
Hofmann, Nancy R.
- You have accessRestricted AccessThey All Scream for ICE1/SCRM2: Core Regulatory Units in Stomatal DevelopmentNancy R. HofmannPlant Cell Jul 2008, 20 (7) 1732; DOI: https://doi.org/10.1105/tpc.108.200711
Holmgren, Asbjørn
- Open AccessThe EPIP Peptide of INFLORESCENCE DEFICIENT IN ABSCISSION Is Sufficient to Induce Abscission in Arabidopsis through the Receptor-Like Kinases HAESA and HAESA-LIKE2Grethe-Elisabeth Stenvik, Nora M. Tandstad, Yongfeng Guo, Chun-Lin Shi, Wenche Kristiansen, Asbjørn Holmgren, Steven E. Clark, Reidunn B. Aalen, Melinka A. ButenkoPlant Cell Jul 2008, 20 (7) 1805-1817; DOI: https://doi.org/10.1105/tpc.108.059139
Cell separation allows plants to shed entire organs. In Arabidopsis, the IDA gene is required for abscission of floral organs (e.g., petals). A peptide present in IDA and related IDA-LIKE (IDL) proteins is sufficient for IDA function. Genetic evidence suggests that IDA and IDL proteins are ligands that act through membrane-bound receptors to control cell separation events during plant development.
Hosaka, Yuko
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
Hotson, Andrew
- Open AccessXopD SUMO Protease Affects Host Transcription, Promotes Pathogen Growth, and Delays Symptom Development in Xanthomonas-Infected Tomato LeavesJung-Gun Kim, Kyle W. Taylor, Andrew Hotson, Mark Keegan, Eric A. Schmelz, Mary Beth MudgettPlant Cell Jul 2008, 20 (7) 1915-1929; DOI: https://doi.org/10.1105/tpc.108.058529
This work shows that the XopD T3S effector promotes pathogen multiplication in a susceptible host and suppresses the development of chlorosis and necrosis in diseased tissue. Biochemical analysis reveals that XopD possesses DNA binding and transcriptional repressor activity, in addition to SUMO protease activity, indicating that all three activities are required for XopD virulence.
Hwang, Seon-Kap
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
J
Jaworski, Jan G.
- You have accessRestricted AccessSphingolipid Long-Chain Base Hydroxylation Is Important for Growth and Regulation of Sphingolipid Content and Composition in ArabidopsisMing Chen, Jonathan E. Markham, Charles R. Dietrich, Jan G. Jaworski, Edgar B. CahoonPlant Cell Jul 2008, 20 (7) 1862-1878; DOI: https://doi.org/10.1105/tpc.107.057851
Sphingolipids are essential components of endomembranes and regulators of programmed cell death. This work shows that loss of the C-4 hydroxyl group of sphingolipid long-chain bases (LCBs) in Arabidopsis severely reduces plant growth and increases the content of sphingolipids, primarily with C16 fatty acids. Thus, LCB hydroxylation is important in mediating growth and sphingolipid metabolism.
Ji, Qing
- You have accessRestricted AccessBadh2, Encoding Betaine Aldehyde Dehydrogenase, Inhibits the Biosynthesis of 2-Acetyl-1-Pyrroline, a Major Component in Rice FragranceSaihua Chen, Yi Yang, Weiwei Shi, Qing Ji, Fei He, Ziding Zhang, Zhukuan Cheng, Xiangnong Liu, Mingliang XuPlant Cell Jul 2008, 20 (7) 1850-1861; DOI: https://doi.org/10.1105/tpc.108.058917
2-acetyl-1-pyrroline (2AP) is a potent flavor component that gives fragrant rice varieties a distinctive flavor. This study shows that a functional Badh2 allele present in nonfragrant rice varieties encodes an enzyme that inhibits 2AP synthesis by exhausting its precursor, whereas null badh2 alleles, found in fragrant rice varieties, result in 2AP accumulation due to a lack of active BADH2 enzyme.
Jiang, Rays H.Y.
- You have accessRestricted AccessRXLR-Mediated Entry of Phytophthora sojae Effector Avr1b into Soybean Cells Does Not Require Pathogen-Encoded MachineryDaolong Dou, Shiv D. Kale, Xia Wang, Rays H.Y. Jiang, Nathan A. Bruce, Felipe D. Arredondo, Xuemin Zhang, Brett M. TylerPlant Cell Jul 2008, 20 (7) 1930-1947; DOI: https://doi.org/10.1105/tpc.107.056093
In this study, the authors show that N-terminal RXLR and dEER motifs, together with flanking sequences, are necessary and sufficient to translocate oomycete effector proteins into host plant cells across the plasma cell membrane. Translocation occurs with purified proteins, indicating that no other pathogen machinery is required.
Jürgens, Gerd
- You have accessRestricted AccessThe Evolving Complexity of the Auxin PathwaySteffen Lau, Gerd Jürgens, Ive De SmetPlant Cell Jul 2008, 20 (7) 1738-1746; DOI: https://doi.org/10.1105/tpc.108.060418
K
Kale, Shiv D.
- You have accessRestricted AccessRXLR-Mediated Entry of Phytophthora sojae Effector Avr1b into Soybean Cells Does Not Require Pathogen-Encoded MachineryDaolong Dou, Shiv D. Kale, Xia Wang, Rays H.Y. Jiang, Nathan A. Bruce, Felipe D. Arredondo, Xuemin Zhang, Brett M. TylerPlant Cell Jul 2008, 20 (7) 1930-1947; DOI: https://doi.org/10.1105/tpc.107.056093
In this study, the authors show that N-terminal RXLR and dEER motifs, together with flanking sequences, are necessary and sufficient to translocate oomycete effector proteins into host plant cells across the plasma cell membrane. Translocation occurs with purified proteins, indicating that no other pathogen machinery is required.
Kanaoka, Masahiro M.
- Open AccessSCREAM/ICE1 and SCREAM2 Specify Three Cell-State Transitional Steps Leading to Arabidopsis Stomatal DifferentiationMasahiro M. Kanaoka, Lynn Jo Pillitteri, Hiroaki Fujii, Yuki Yoshida, Naomi L. Bogenschutz, Junji Takabayashi, Jian-Kang Zhu, Keiko U. ToriiPlant Cell Jul 2008, 20 (7) 1775-1785; DOI: https://doi.org/10.1105/tpc.108.060848
Stomata are formed through a series of events: initiation, proliferation, and terminal differentiation. This work identifies the upstream regulator of the cold-induced transcriptome as the core component of stomatal differentiation and suggests a model strikingly similar to cell-type differentiation in animals.
Kaneko, Nanae
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
Keegan, Mark
- Open AccessXopD SUMO Protease Affects Host Transcription, Promotes Pathogen Growth, and Delays Symptom Development in Xanthomonas-Infected Tomato LeavesJung-Gun Kim, Kyle W. Taylor, Andrew Hotson, Mark Keegan, Eric A. Schmelz, Mary Beth MudgettPlant Cell Jul 2008, 20 (7) 1915-1929; DOI: https://doi.org/10.1105/tpc.108.058529
This work shows that the XopD T3S effector promotes pathogen multiplication in a susceptible host and suppresses the development of chlorosis and necrosis in diseased tissue. Biochemical analysis reveals that XopD possesses DNA binding and transcriptional repressor activity, in addition to SUMO protease activity, indicating that all three activities are required for XopD virulence.
Kim, Jung-Gun
- Open AccessXopD SUMO Protease Affects Host Transcription, Promotes Pathogen Growth, and Delays Symptom Development in Xanthomonas-Infected Tomato LeavesJung-Gun Kim, Kyle W. Taylor, Andrew Hotson, Mark Keegan, Eric A. Schmelz, Mary Beth MudgettPlant Cell Jul 2008, 20 (7) 1915-1929; DOI: https://doi.org/10.1105/tpc.108.058529
This work shows that the XopD T3S effector promotes pathogen multiplication in a susceptible host and suppresses the development of chlorosis and necrosis in diseased tissue. Biochemical analysis reveals that XopD possesses DNA binding and transcriptional repressor activity, in addition to SUMO protease activity, indicating that all three activities are required for XopD virulence.
Kim, Woo Taek
- You have accessRestricted AccessArabidopsis PUB22 and PUB23 Are Homologous U-Box E3 Ubiquitin Ligases That Play Combinatory Roles in Response to Drought StressSeok Keun Cho, Moon Young Ryu, Charlotte Song, June M. Kwak, Woo Taek KimPlant Cell Jul 2008, 20 (7) 1899-1914; DOI: https://doi.org/10.1105/tpc.108.060699
Arabidopsis PUB22 and PUB23 encode U-box–containing E3 ubiquitin ligases that are coordinately induced by abiotic stress and interact with a proteasomal subunit. Loss-of-function mutants show increased tolerance to drought stress, while overexpression increases drought sensitivity. This indicates that PUB22 and PUB23 act coordinately to negatively regulate a drought stress signaling pathway.
Krassovskaya, Inga
- Open AccessArabidopsis 10-Formyl Tetrahydrofolate Deformylases Are Essential for PhotorespirationEva Collakova, Aymeric Goyer, Valeria Naponelli, Inga Krassovskaya, Jesse F. Gregory III, Andrew D. Hanson, Yair Shachar-HillPlant Cell Jul 2008, 20 (7) 1818-1832; DOI: https://doi.org/10.1105/tpc.108.058701
This work demonstrates the importance of mitochondrial 10-formyl tetrahydrofolate (THF) deformylase and bifunctional 5,10-methylene THF dehydrogenase/5,10-methenyl THF cyclohydrolase in photorespiration. A model showing the involvement of these folate interconversion enzymes in photorespiration is proposed.
Kristiansen, Wenche
- Open AccessThe EPIP Peptide of INFLORESCENCE DEFICIENT IN ABSCISSION Is Sufficient to Induce Abscission in Arabidopsis through the Receptor-Like Kinases HAESA and HAESA-LIKE2Grethe-Elisabeth Stenvik, Nora M. Tandstad, Yongfeng Guo, Chun-Lin Shi, Wenche Kristiansen, Asbjørn Holmgren, Steven E. Clark, Reidunn B. Aalen, Melinka A. ButenkoPlant Cell Jul 2008, 20 (7) 1805-1817; DOI: https://doi.org/10.1105/tpc.108.059139
Cell separation allows plants to shed entire organs. In Arabidopsis, the IDA gene is required for abscission of floral organs (e.g., petals). A peptide present in IDA and related IDA-LIKE (IDL) proteins is sufficient for IDA function. Genetic evidence suggests that IDA and IDL proteins are ligands that act through membrane-bound receptors to control cell separation events during plant development.
Kushwaha, Ritu
- You have accessRestricted AccessCalmodulin7 Plays an Important Role as Transcriptional Regulator in Arabidopsis Seedling DevelopmentRitu Kushwaha, Aparna Singh, Sudip ChattopadhyayPlant Cell Jul 2008, 20 (7) 1747-1759; DOI: https://doi.org/10.1105/tpc.107.057612
Calmodulin (CaM) plays multiple regulatory roles in eukaryotes. This study examines the transcriptional regulatory role of CAM7 in early seedling development in plants and further explores the concerted function of CAM7 and HY5 in the regulation of photomorphogenic growth and light-regulated gene expression.
Kwak, June M.
- You have accessRestricted AccessArabidopsis PUB22 and PUB23 Are Homologous U-Box E3 Ubiquitin Ligases That Play Combinatory Roles in Response to Drought StressSeok Keun Cho, Moon Young Ryu, Charlotte Song, June M. Kwak, Woo Taek KimPlant Cell Jul 2008, 20 (7) 1899-1914; DOI: https://doi.org/10.1105/tpc.108.060699
Arabidopsis PUB22 and PUB23 encode U-box–containing E3 ubiquitin ligases that are coordinately induced by abiotic stress and interact with a proteasomal subunit. Loss-of-function mutants show increased tolerance to drought stress, while overexpression increases drought sensitivity. This indicates that PUB22 and PUB23 act coordinately to negatively regulate a drought stress signaling pathway.
L
Lau, Steffen
- You have accessRestricted AccessThe Evolving Complexity of the Auxin PathwaySteffen Lau, Gerd Jürgens, Ive De SmetPlant Cell Jul 2008, 20 (7) 1738-1746; DOI: https://doi.org/10.1105/tpc.108.060418
Liu, Xiangnong
- You have accessRestricted AccessBadh2, Encoding Betaine Aldehyde Dehydrogenase, Inhibits the Biosynthesis of 2-Acetyl-1-Pyrroline, a Major Component in Rice FragranceSaihua Chen, Yi Yang, Weiwei Shi, Qing Ji, Fei He, Ziding Zhang, Zhukuan Cheng, Xiangnong Liu, Mingliang XuPlant Cell Jul 2008, 20 (7) 1850-1861; DOI: https://doi.org/10.1105/tpc.108.058917
2-acetyl-1-pyrroline (2AP) is a potent flavor component that gives fragrant rice varieties a distinctive flavor. This study shows that a functional Badh2 allele present in nonfragrant rice varieties encodes an enzyme that inhibits 2AP synthesis by exhausting its precursor, whereas null badh2 alleles, found in fragrant rice varieties, result in 2AP accumulation due to a lack of active BADH2 enzyme.
Liu, Xiayan
- You have accessRestricted AccessMutations in SUPPRESSOR OF VARIEGATION1, a Factor Required for Normal Chloroplast Translation, Suppress var2-Mediated Leaf Variegation in ArabidopsisFei Yu, Xiayan Liu, Muath Alsheikh, Sungsoon Park, Steve RodermelPlant Cell Jul 2008, 20 (7) 1786-1804; DOI: https://doi.org/10.1105/tpc.107.054965
The Arabidopsis var2 variegation mutant has green-and white-sectored leaves due to lack of VAR2, a chloroplast FtsH metalloprotease. Variegation can be suppressed in var2 by impaired chloroplast translation caused by lesions in SVR1 and SVR2, nuclear genes that encode a chloroplast pseudouridine synthase and the ClpR1 subunit of the chloroplast Clp protease, respectively.
Luo, Hongli
- You have accessRestricted AccessTomato Protein Kinase 1b Mediates Signaling of Plant Responses to Necrotrophic Fungi and Insect HerbivorySynan AbuQamar, Mao-Feng Chai, Hongli Luo, Fengming Song, Tesfaye MengistePlant Cell Jul 2008, 20 (7) 1964-1983; DOI: https://doi.org/10.1105/tpc.108.059477
Tomato Protein Kinase 1b (TPK1b) regulates ethylene-mediated defense against pathogens and insect pests. TPK1b RNA interference plants show increased susceptibility to Botrytis infection and insect feeding and are impaired in ethylene responses. These impaired responses correlate with reduced expression of proteinase inhibitor II in response to Botrytis and 1-aminocyclopropane-1-carboxylic acid.
M
Mach, Jennifer
- You have accessRestricted AccessEffector XopD Suppresses Tissue Degeneration in Xanthomonas-Infected Tomato LeavesJennifer MachPlant Cell Jul 2008, 20 (7) 1731; DOI: https://doi.org/10.1105/tpc.108.200710
Markham, Jonathan E.
- You have accessRestricted AccessSphingolipid Long-Chain Base Hydroxylation Is Important for Growth and Regulation of Sphingolipid Content and Composition in ArabidopsisMing Chen, Jonathan E. Markham, Charles R. Dietrich, Jan G. Jaworski, Edgar B. CahoonPlant Cell Jul 2008, 20 (7) 1862-1878; DOI: https://doi.org/10.1105/tpc.107.057851
Sphingolipids are essential components of endomembranes and regulators of programmed cell death. This work shows that loss of the C-4 hydroxyl group of sphingolipid long-chain bases (LCBs) in Arabidopsis severely reduces plant growth and increases the content of sphingolipids, primarily with C16 fatty acids. Thus, LCB hydroxylation is important in mediating growth and sphingolipid metabolism.
Martin, Cathie
- You have accessRestricted AccessRefining Our StandardsCathie MartinPlant Cell Jul 2008, 20 (7) 1727; DOI: https://doi.org/10.1105/tpc.108.200780
Maurel, Christophe
- Open AccessDolichol Biosynthesis and Its Effects on the Unfolded Protein Response and Abiotic Stress Resistance in ArabidopsisHairong Zhang, Kiyoshi Ohyama, Julie Boudet, Zhizhong Chen, Jilai Yang, Min Zhang, Toshiya Muranaka, Christophe Maurel, Jian-Kang Zhu, Zhizhong GongPlant Cell Jul 2008, 20 (7) 1879-1898; DOI: https://doi.org/10.1105/tpc.108.061150
This work describes the isolation and biochemical characterization of the leaf wilting1 (lew1) gene that is responsible for the biosynthesis of dolichols in Arabidopsis. Genetic, molecular, and physiological analyses of the glycosylation defective lew1 mutant show that drought stress signaling converges with endoplasmic reticulum (ER) signaling to regulate ER/UPR (unfolded protein response) and osmotic stress responses.
Mauriat, Mélanie
- You have accessRestricted AccessTowards a Systematic Validation of References in Real-Time RT-PCRLaurent Gutierrez, Mélanie Mauriat, Jérôme Pelloux, Catherine Bellini, Olivier Van WuytswinkelPlant Cell Jul 2008, 20 (7) 1734-1735; DOI: https://doi.org/10.1105/tpc.108.059774
Mengiste, Tesfaye
- You have accessRestricted AccessTomato Protein Kinase 1b Mediates Signaling of Plant Responses to Necrotrophic Fungi and Insect HerbivorySynan AbuQamar, Mao-Feng Chai, Hongli Luo, Fengming Song, Tesfaye MengistePlant Cell Jul 2008, 20 (7) 1964-1983; DOI: https://doi.org/10.1105/tpc.108.059477
Tomato Protein Kinase 1b (TPK1b) regulates ethylene-mediated defense against pathogens and insect pests. TPK1b RNA interference plants show increased susceptibility to Botrytis infection and insect feeding and are impaired in ethylene responses. These impaired responses correlate with reduced expression of proteinase inhibitor II in response to Botrytis and 1-aminocyclopropane-1-carboxylic acid.
Mudgett, Mary Beth
- Open AccessXopD SUMO Protease Affects Host Transcription, Promotes Pathogen Growth, and Delays Symptom Development in Xanthomonas-Infected Tomato LeavesJung-Gun Kim, Kyle W. Taylor, Andrew Hotson, Mark Keegan, Eric A. Schmelz, Mary Beth MudgettPlant Cell Jul 2008, 20 (7) 1915-1929; DOI: https://doi.org/10.1105/tpc.108.058529
This work shows that the XopD T3S effector promotes pathogen multiplication in a susceptible host and suppresses the development of chlorosis and necrosis in diseased tissue. Biochemical analysis reveals that XopD possesses DNA binding and transcriptional repressor activity, in addition to SUMO protease activity, indicating that all three activities are required for XopD virulence.
Muranaka, Toshiya
- Open AccessDolichol Biosynthesis and Its Effects on the Unfolded Protein Response and Abiotic Stress Resistance in ArabidopsisHairong Zhang, Kiyoshi Ohyama, Julie Boudet, Zhizhong Chen, Jilai Yang, Min Zhang, Toshiya Muranaka, Christophe Maurel, Jian-Kang Zhu, Zhizhong GongPlant Cell Jul 2008, 20 (7) 1879-1898; DOI: https://doi.org/10.1105/tpc.108.061150
This work describes the isolation and biochemical characterization of the leaf wilting1 (lew1) gene that is responsible for the biosynthesis of dolichols in Arabidopsis. Genetic, molecular, and physiological analyses of the glycosylation defective lew1 mutant show that drought stress signaling converges with endoplasmic reticulum (ER) signaling to regulate ER/UPR (unfolded protein response) and osmotic stress responses.
N
Nakamura, Yasunori
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
Naponelli, Valeria
- Open AccessArabidopsis 10-Formyl Tetrahydrofolate Deformylases Are Essential for PhotorespirationEva Collakova, Aymeric Goyer, Valeria Naponelli, Inga Krassovskaya, Jesse F. Gregory III, Andrew D. Hanson, Yair Shachar-HillPlant Cell Jul 2008, 20 (7) 1818-1832; DOI: https://doi.org/10.1105/tpc.108.058701
This work demonstrates the importance of mitochondrial 10-formyl tetrahydrofolate (THF) deformylase and bifunctional 5,10-methylene THF dehydrogenase/5,10-methenyl THF cyclohydrolase in photorespiration. A model showing the involvement of these folate interconversion enzymes in photorespiration is proposed.
Nishi, Aiko
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
O
Ohdan, Takashi
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
Ohyama, Kiyoshi
- Open AccessDolichol Biosynthesis and Its Effects on the Unfolded Protein Response and Abiotic Stress Resistance in ArabidopsisHairong Zhang, Kiyoshi Ohyama, Julie Boudet, Zhizhong Chen, Jilai Yang, Min Zhang, Toshiya Muranaka, Christophe Maurel, Jian-Kang Zhu, Zhizhong GongPlant Cell Jul 2008, 20 (7) 1879-1898; DOI: https://doi.org/10.1105/tpc.108.061150
This work describes the isolation and biochemical characterization of the leaf wilting1 (lew1) gene that is responsible for the biosynthesis of dolichols in Arabidopsis. Genetic, molecular, and physiological analyses of the glycosylation defective lew1 mutant show that drought stress signaling converges with endoplasmic reticulum (ER) signaling to regulate ER/UPR (unfolded protein response) and osmotic stress responses.
Okita, Thomas W.
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
P
Park, Sungsoon
- You have accessRestricted AccessMutations in SUPPRESSOR OF VARIEGATION1, a Factor Required for Normal Chloroplast Translation, Suppress var2-Mediated Leaf Variegation in ArabidopsisFei Yu, Xiayan Liu, Muath Alsheikh, Sungsoon Park, Steve RodermelPlant Cell Jul 2008, 20 (7) 1786-1804; DOI: https://doi.org/10.1105/tpc.107.054965
The Arabidopsis var2 variegation mutant has green-and white-sectored leaves due to lack of VAR2, a chloroplast FtsH metalloprotease. Variegation can be suppressed in var2 by impaired chloroplast translation caused by lesions in SVR1 and SVR2, nuclear genes that encode a chloroplast pseudouridine synthase and the ClpR1 subunit of the chloroplast Clp protease, respectively.
Pelloux, Jérôme
- You have accessRestricted AccessTowards a Systematic Validation of References in Real-Time RT-PCRLaurent Gutierrez, Mélanie Mauriat, Jérôme Pelloux, Catherine Bellini, Olivier Van WuytswinkelPlant Cell Jul 2008, 20 (7) 1734-1735; DOI: https://doi.org/10.1105/tpc.108.059774
Pillitteri, Lynn Jo
- Open AccessSCREAM/ICE1 and SCREAM2 Specify Three Cell-State Transitional Steps Leading to Arabidopsis Stomatal DifferentiationMasahiro M. Kanaoka, Lynn Jo Pillitteri, Hiroaki Fujii, Yuki Yoshida, Naomi L. Bogenschutz, Junji Takabayashi, Jian-Kang Zhu, Keiko U. ToriiPlant Cell Jul 2008, 20 (7) 1775-1785; DOI: https://doi.org/10.1105/tpc.108.060848
Stomata are formed through a series of events: initiation, proliferation, and terminal differentiation. This work identifies the upstream regulator of the cold-induced transcriptome as the core component of stomatal differentiation and suggests a model strikingly similar to cell-type differentiation in animals.
Q
Qu, Nan
- You have accessRestricted AccessInduced Plant Defenses in the Natural Environment: Nicotiana attenuata WRKY3 and WRKY6 Coordinate Responses to HerbivoryMelanie Skibbe, Nan Qu, Ivan Galis, Ian T. BaldwinPlant Cell Jul 2008, 20 (7) 1984-2000; DOI: https://doi.org/10.1105/tpc.108.058594
WRKY transcription factors regulate plant responses to stress. This work describes two WRKY genes from Nicotiana attenuata that regulate jasmonate (JA) accumulation in response to wounding and herbivore-specific elicitors and JA-mediated defenses against herbivores in 3 years of fieldwork with plants silenced in WRKY expression in the plant's native habitat in the Great Basin Desert.
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Rodermel, Steve
- You have accessRestricted AccessMutations in SUPPRESSOR OF VARIEGATION1, a Factor Required for Normal Chloroplast Translation, Suppress var2-Mediated Leaf Variegation in ArabidopsisFei Yu, Xiayan Liu, Muath Alsheikh, Sungsoon Park, Steve RodermelPlant Cell Jul 2008, 20 (7) 1786-1804; DOI: https://doi.org/10.1105/tpc.107.054965
The Arabidopsis var2 variegation mutant has green-and white-sectored leaves due to lack of VAR2, a chloroplast FtsH metalloprotease. Variegation can be suppressed in var2 by impaired chloroplast translation caused by lesions in SVR1 and SVR2, nuclear genes that encode a chloroplast pseudouridine synthase and the ClpR1 subunit of the chloroplast Clp protease, respectively.
Ryu, Moon Young
- You have accessRestricted AccessArabidopsis PUB22 and PUB23 Are Homologous U-Box E3 Ubiquitin Ligases That Play Combinatory Roles in Response to Drought StressSeok Keun Cho, Moon Young Ryu, Charlotte Song, June M. Kwak, Woo Taek KimPlant Cell Jul 2008, 20 (7) 1899-1914; DOI: https://doi.org/10.1105/tpc.108.060699
Arabidopsis PUB22 and PUB23 encode U-box–containing E3 ubiquitin ligases that are coordinately induced by abiotic stress and interact with a proteasomal subunit. Loss-of-function mutants show increased tolerance to drought stress, while overexpression increases drought sensitivity. This indicates that PUB22 and PUB23 act coordinately to negatively regulate a drought stress signaling pathway.
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Sato, Aya
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
Satoh, Hikaru
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
Scheible, Wolf-Rüdiger
- You have accessRestricted AccessEleven Golden Rules of Quantitative RT-PCRMichael K. Udvardi, Tomasz Czechowski, Wolf-Rüdiger ScheiblePlant Cell Jul 2008, 20 (7) 1736-1737; DOI: https://doi.org/10.1105/tpc.108.061143
Schmelz, Eric A.
- Open AccessXopD SUMO Protease Affects Host Transcription, Promotes Pathogen Growth, and Delays Symptom Development in Xanthomonas-Infected Tomato LeavesJung-Gun Kim, Kyle W. Taylor, Andrew Hotson, Mark Keegan, Eric A. Schmelz, Mary Beth MudgettPlant Cell Jul 2008, 20 (7) 1915-1929; DOI: https://doi.org/10.1105/tpc.108.058529
This work shows that the XopD T3S effector promotes pathogen multiplication in a susceptible host and suppresses the development of chlorosis and necrosis in diseased tissue. Biochemical analysis reveals that XopD possesses DNA binding and transcriptional repressor activity, in addition to SUMO protease activity, indicating that all three activities are required for XopD virulence.
Shachar-Hill, Yair
- Open AccessArabidopsis 10-Formyl Tetrahydrofolate Deformylases Are Essential for PhotorespirationEva Collakova, Aymeric Goyer, Valeria Naponelli, Inga Krassovskaya, Jesse F. Gregory III, Andrew D. Hanson, Yair Shachar-HillPlant Cell Jul 2008, 20 (7) 1818-1832; DOI: https://doi.org/10.1105/tpc.108.058701
This work demonstrates the importance of mitochondrial 10-formyl tetrahydrofolate (THF) deformylase and bifunctional 5,10-methylene THF dehydrogenase/5,10-methenyl THF cyclohydrolase in photorespiration. A model showing the involvement of these folate interconversion enzymes in photorespiration is proposed.
Shi, Chun-Lin
- Open AccessThe EPIP Peptide of INFLORESCENCE DEFICIENT IN ABSCISSION Is Sufficient to Induce Abscission in Arabidopsis through the Receptor-Like Kinases HAESA and HAESA-LIKE2Grethe-Elisabeth Stenvik, Nora M. Tandstad, Yongfeng Guo, Chun-Lin Shi, Wenche Kristiansen, Asbjørn Holmgren, Steven E. Clark, Reidunn B. Aalen, Melinka A. ButenkoPlant Cell Jul 2008, 20 (7) 1805-1817; DOI: https://doi.org/10.1105/tpc.108.059139
Cell separation allows plants to shed entire organs. In Arabidopsis, the IDA gene is required for abscission of floral organs (e.g., petals). A peptide present in IDA and related IDA-LIKE (IDL) proteins is sufficient for IDA function. Genetic evidence suggests that IDA and IDL proteins are ligands that act through membrane-bound receptors to control cell separation events during plant development.
Shi, Weiwei
- You have accessRestricted AccessBadh2, Encoding Betaine Aldehyde Dehydrogenase, Inhibits the Biosynthesis of 2-Acetyl-1-Pyrroline, a Major Component in Rice FragranceSaihua Chen, Yi Yang, Weiwei Shi, Qing Ji, Fei He, Ziding Zhang, Zhukuan Cheng, Xiangnong Liu, Mingliang XuPlant Cell Jul 2008, 20 (7) 1850-1861; DOI: https://doi.org/10.1105/tpc.108.058917
2-acetyl-1-pyrroline (2AP) is a potent flavor component that gives fragrant rice varieties a distinctive flavor. This study shows that a functional Badh2 allele present in nonfragrant rice varieties encodes an enzyme that inhibits 2AP synthesis by exhausting its precursor, whereas null badh2 alleles, found in fragrant rice varieties, result in 2AP accumulation due to a lack of active BADH2 enzyme.
Shibahara, Kensuke
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
Singh, Aparna
- You have accessRestricted AccessCalmodulin7 Plays an Important Role as Transcriptional Regulator in Arabidopsis Seedling DevelopmentRitu Kushwaha, Aparna Singh, Sudip ChattopadhyayPlant Cell Jul 2008, 20 (7) 1747-1759; DOI: https://doi.org/10.1105/tpc.107.057612
Calmodulin (CaM) plays multiple regulatory roles in eukaryotes. This study examines the transcriptional regulatory role of CAM7 in early seedling development in plants and further explores the concerted function of CAM7 and HY5 in the regulation of photomorphogenic growth and light-regulated gene expression.
Skibbe, Melanie
- You have accessRestricted AccessInduced Plant Defenses in the Natural Environment: Nicotiana attenuata WRKY3 and WRKY6 Coordinate Responses to HerbivoryMelanie Skibbe, Nan Qu, Ivan Galis, Ian T. BaldwinPlant Cell Jul 2008, 20 (7) 1984-2000; DOI: https://doi.org/10.1105/tpc.108.058594
WRKY transcription factors regulate plant responses to stress. This work describes two WRKY genes from Nicotiana attenuata that regulate jasmonate (JA) accumulation in response to wounding and herbivore-specific elicitors and JA-mediated defenses against herbivores in 3 years of fieldwork with plants silenced in WRKY expression in the plant's native habitat in the Great Basin Desert.
Song, Charlotte
- You have accessRestricted AccessArabidopsis PUB22 and PUB23 Are Homologous U-Box E3 Ubiquitin Ligases That Play Combinatory Roles in Response to Drought StressSeok Keun Cho, Moon Young Ryu, Charlotte Song, June M. Kwak, Woo Taek KimPlant Cell Jul 2008, 20 (7) 1899-1914; DOI: https://doi.org/10.1105/tpc.108.060699
Arabidopsis PUB22 and PUB23 encode U-box–containing E3 ubiquitin ligases that are coordinately induced by abiotic stress and interact with a proteasomal subunit. Loss-of-function mutants show increased tolerance to drought stress, while overexpression increases drought sensitivity. This indicates that PUB22 and PUB23 act coordinately to negatively regulate a drought stress signaling pathway.
Song, Fengming
- You have accessRestricted AccessTomato Protein Kinase 1b Mediates Signaling of Plant Responses to Necrotrophic Fungi and Insect HerbivorySynan AbuQamar, Mao-Feng Chai, Hongli Luo, Fengming Song, Tesfaye MengistePlant Cell Jul 2008, 20 (7) 1964-1983; DOI: https://doi.org/10.1105/tpc.108.059477
Tomato Protein Kinase 1b (TPK1b) regulates ethylene-mediated defense against pathogens and insect pests. TPK1b RNA interference plants show increased susceptibility to Botrytis infection and insect feeding and are impaired in ethylene responses. These impaired responses correlate with reduced expression of proteinase inhibitor II in response to Botrytis and 1-aminocyclopropane-1-carboxylic acid.
Stenvik, Grethe-Elisabeth
- Open AccessThe EPIP Peptide of INFLORESCENCE DEFICIENT IN ABSCISSION Is Sufficient to Induce Abscission in Arabidopsis through the Receptor-Like Kinases HAESA and HAESA-LIKE2Grethe-Elisabeth Stenvik, Nora M. Tandstad, Yongfeng Guo, Chun-Lin Shi, Wenche Kristiansen, Asbjørn Holmgren, Steven E. Clark, Reidunn B. Aalen, Melinka A. ButenkoPlant Cell Jul 2008, 20 (7) 1805-1817; DOI: https://doi.org/10.1105/tpc.108.059139
Cell separation allows plants to shed entire organs. In Arabidopsis, the IDA gene is required for abscission of floral organs (e.g., petals). A peptide present in IDA and related IDA-LIKE (IDL) proteins is sufficient for IDA function. Genetic evidence suggests that IDA and IDL proteins are ligands that act through membrane-bound receptors to control cell separation events during plant development.
T
Takabayashi, Junji
- Open AccessSCREAM/ICE1 and SCREAM2 Specify Three Cell-State Transitional Steps Leading to Arabidopsis Stomatal DifferentiationMasahiro M. Kanaoka, Lynn Jo Pillitteri, Hiroaki Fujii, Yuki Yoshida, Naomi L. Bogenschutz, Junji Takabayashi, Jian-Kang Zhu, Keiko U. ToriiPlant Cell Jul 2008, 20 (7) 1775-1785; DOI: https://doi.org/10.1105/tpc.108.060848
Stomata are formed through a series of events: initiation, proliferation, and terminal differentiation. This work identifies the upstream regulator of the cold-induced transcriptome as the core component of stomatal differentiation and suggests a model strikingly similar to cell-type differentiation in animals.
Tandstad, Nora M.
- Open AccessThe EPIP Peptide of INFLORESCENCE DEFICIENT IN ABSCISSION Is Sufficient to Induce Abscission in Arabidopsis through the Receptor-Like Kinases HAESA and HAESA-LIKE2Grethe-Elisabeth Stenvik, Nora M. Tandstad, Yongfeng Guo, Chun-Lin Shi, Wenche Kristiansen, Asbjørn Holmgren, Steven E. Clark, Reidunn B. Aalen, Melinka A. ButenkoPlant Cell Jul 2008, 20 (7) 1805-1817; DOI: https://doi.org/10.1105/tpc.108.059139
Cell separation allows plants to shed entire organs. In Arabidopsis, the IDA gene is required for abscission of floral organs (e.g., petals). A peptide present in IDA and related IDA-LIKE (IDL) proteins is sufficient for IDA function. Genetic evidence suggests that IDA and IDL proteins are ligands that act through membrane-bound receptors to control cell separation events during plant development.
Tasaki, Mikako
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
Taylor, Kyle W.
- Open AccessXopD SUMO Protease Affects Host Transcription, Promotes Pathogen Growth, and Delays Symptom Development in Xanthomonas-Infected Tomato LeavesJung-Gun Kim, Kyle W. Taylor, Andrew Hotson, Mark Keegan, Eric A. Schmelz, Mary Beth MudgettPlant Cell Jul 2008, 20 (7) 1915-1929; DOI: https://doi.org/10.1105/tpc.108.058529
This work shows that the XopD T3S effector promotes pathogen multiplication in a susceptible host and suppresses the development of chlorosis and necrosis in diseased tissue. Biochemical analysis reveals that XopD possesses DNA binding and transcriptional repressor activity, in addition to SUMO protease activity, indicating that all three activities are required for XopD virulence.
Thomma, Bart P.H.J.
- Open AccessThe Cladosporium fulvum Virulence Protein Avr2 Inhibits Host Proteases Required for Basal DefenseH. Peter van Esse, John W. van't Klooster, Melvin D. Bolton, Koste A. Yadeta, Peter van Baarlen, Sjef Boeren, Jacques Vervoort, Pierre J.G.M. de Wit, Bart P.H.J. ThommaPlant Cell Jul 2008, 20 (7) 1948-1963; DOI: https://doi.org/10.1105/tpc.108.059394
The fungus Cladosporium fulvum secretes the effector protein Avr2 during infection of tomato. This work shows that Avr2 interacts with several extracellular Cys proteases in tomato and Arabidopsis. Avr2 expression causes enhanced susceptibility towards several pathogens in both plant species, and, with RNAi-mediated gene silencing in C. fulvum, it is shown that Avr2 is a genuine virulence factor.
Tokunaga, Takashi
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
Torii, Keiko U.
- Open AccessSCREAM/ICE1 and SCREAM2 Specify Three Cell-State Transitional Steps Leading to Arabidopsis Stomatal DifferentiationMasahiro M. Kanaoka, Lynn Jo Pillitteri, Hiroaki Fujii, Yuki Yoshida, Naomi L. Bogenschutz, Junji Takabayashi, Jian-Kang Zhu, Keiko U. ToriiPlant Cell Jul 2008, 20 (7) 1775-1785; DOI: https://doi.org/10.1105/tpc.108.060848
Stomata are formed through a series of events: initiation, proliferation, and terminal differentiation. This work identifies the upstream regulator of the cold-induced transcriptome as the core component of stomatal differentiation and suggests a model strikingly similar to cell-type differentiation in animals.
Tyler, Brett M.
- You have accessRestricted AccessRXLR-Mediated Entry of Phytophthora sojae Effector Avr1b into Soybean Cells Does Not Require Pathogen-Encoded MachineryDaolong Dou, Shiv D. Kale, Xia Wang, Rays H.Y. Jiang, Nathan A. Bruce, Felipe D. Arredondo, Xuemin Zhang, Brett M. TylerPlant Cell Jul 2008, 20 (7) 1930-1947; DOI: https://doi.org/10.1105/tpc.107.056093
In this study, the authors show that N-terminal RXLR and dEER motifs, together with flanking sequences, are necessary and sufficient to translocate oomycete effector proteins into host plant cells across the plasma cell membrane. Translocation occurs with purified proteins, indicating that no other pathogen machinery is required.
U
Udvardi, Michael K.
- You have accessRestricted AccessEleven Golden Rules of Quantitative RT-PCRMichael K. Udvardi, Tomasz Czechowski, Wolf-Rüdiger ScheiblePlant Cell Jul 2008, 20 (7) 1736-1737; DOI: https://doi.org/10.1105/tpc.108.061143
Utsumi, Yoshinori
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
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van't Klooster, John W.
- Open AccessThe Cladosporium fulvum Virulence Protein Avr2 Inhibits Host Proteases Required for Basal DefenseH. Peter van Esse, John W. van't Klooster, Melvin D. Bolton, Koste A. Yadeta, Peter van Baarlen, Sjef Boeren, Jacques Vervoort, Pierre J.G.M. de Wit, Bart P.H.J. ThommaPlant Cell Jul 2008, 20 (7) 1948-1963; DOI: https://doi.org/10.1105/tpc.108.059394
The fungus Cladosporium fulvum secretes the effector protein Avr2 during infection of tomato. This work shows that Avr2 interacts with several extracellular Cys proteases in tomato and Arabidopsis. Avr2 expression causes enhanced susceptibility towards several pathogens in both plant species, and, with RNAi-mediated gene silencing in C. fulvum, it is shown that Avr2 is a genuine virulence factor.
van Baarlen, Peter
- Open AccessThe Cladosporium fulvum Virulence Protein Avr2 Inhibits Host Proteases Required for Basal DefenseH. Peter van Esse, John W. van't Klooster, Melvin D. Bolton, Koste A. Yadeta, Peter van Baarlen, Sjef Boeren, Jacques Vervoort, Pierre J.G.M. de Wit, Bart P.H.J. ThommaPlant Cell Jul 2008, 20 (7) 1948-1963; DOI: https://doi.org/10.1105/tpc.108.059394
The fungus Cladosporium fulvum secretes the effector protein Avr2 during infection of tomato. This work shows that Avr2 interacts with several extracellular Cys proteases in tomato and Arabidopsis. Avr2 expression causes enhanced susceptibility towards several pathogens in both plant species, and, with RNAi-mediated gene silencing in C. fulvum, it is shown that Avr2 is a genuine virulence factor.
van Esse, H. Peter
- Open AccessThe Cladosporium fulvum Virulence Protein Avr2 Inhibits Host Proteases Required for Basal DefenseH. Peter van Esse, John W. van't Klooster, Melvin D. Bolton, Koste A. Yadeta, Peter van Baarlen, Sjef Boeren, Jacques Vervoort, Pierre J.G.M. de Wit, Bart P.H.J. ThommaPlant Cell Jul 2008, 20 (7) 1948-1963; DOI: https://doi.org/10.1105/tpc.108.059394
The fungus Cladosporium fulvum secretes the effector protein Avr2 during infection of tomato. This work shows that Avr2 interacts with several extracellular Cys proteases in tomato and Arabidopsis. Avr2 expression causes enhanced susceptibility towards several pathogens in both plant species, and, with RNAi-mediated gene silencing in C. fulvum, it is shown that Avr2 is a genuine virulence factor.
Van Wuytswinkel, Olivier
- You have accessRestricted AccessTowards a Systematic Validation of References in Real-Time RT-PCRLaurent Gutierrez, Mélanie Mauriat, Jérôme Pelloux, Catherine Bellini, Olivier Van WuytswinkelPlant Cell Jul 2008, 20 (7) 1734-1735; DOI: https://doi.org/10.1105/tpc.108.059774
Vervoort, Jacques
- Open AccessThe Cladosporium fulvum Virulence Protein Avr2 Inhibits Host Proteases Required for Basal DefenseH. Peter van Esse, John W. van't Klooster, Melvin D. Bolton, Koste A. Yadeta, Peter van Baarlen, Sjef Boeren, Jacques Vervoort, Pierre J.G.M. de Wit, Bart P.H.J. ThommaPlant Cell Jul 2008, 20 (7) 1948-1963; DOI: https://doi.org/10.1105/tpc.108.059394
The fungus Cladosporium fulvum secretes the effector protein Avr2 during infection of tomato. This work shows that Avr2 interacts with several extracellular Cys proteases in tomato and Arabidopsis. Avr2 expression causes enhanced susceptibility towards several pathogens in both plant species, and, with RNAi-mediated gene silencing in C. fulvum, it is shown that Avr2 is a genuine virulence factor.
W
Wang, Xia
- You have accessRestricted AccessRXLR-Mediated Entry of Phytophthora sojae Effector Avr1b into Soybean Cells Does Not Require Pathogen-Encoded MachineryDaolong Dou, Shiv D. Kale, Xia Wang, Rays H.Y. Jiang, Nathan A. Bruce, Felipe D. Arredondo, Xuemin Zhang, Brett M. TylerPlant Cell Jul 2008, 20 (7) 1930-1947; DOI: https://doi.org/10.1105/tpc.107.056093
In this study, the authors show that N-terminal RXLR and dEER motifs, together with flanking sequences, are necessary and sufficient to translocate oomycete effector proteins into host plant cells across the plasma cell membrane. Translocation occurs with purified proteins, indicating that no other pathogen machinery is required.
X
Xu, Mingliang
- You have accessRestricted AccessBadh2, Encoding Betaine Aldehyde Dehydrogenase, Inhibits the Biosynthesis of 2-Acetyl-1-Pyrroline, a Major Component in Rice FragranceSaihua Chen, Yi Yang, Weiwei Shi, Qing Ji, Fei He, Ziding Zhang, Zhukuan Cheng, Xiangnong Liu, Mingliang XuPlant Cell Jul 2008, 20 (7) 1850-1861; DOI: https://doi.org/10.1105/tpc.108.058917
2-acetyl-1-pyrroline (2AP) is a potent flavor component that gives fragrant rice varieties a distinctive flavor. This study shows that a functional Badh2 allele present in nonfragrant rice varieties encodes an enzyme that inhibits 2AP synthesis by exhausting its precursor, whereas null badh2 alleles, found in fragrant rice varieties, result in 2AP accumulation due to a lack of active BADH2 enzyme.
Y
Yadeta, Koste A.
- Open AccessThe Cladosporium fulvum Virulence Protein Avr2 Inhibits Host Proteases Required for Basal DefenseH. Peter van Esse, John W. van't Klooster, Melvin D. Bolton, Koste A. Yadeta, Peter van Baarlen, Sjef Boeren, Jacques Vervoort, Pierre J.G.M. de Wit, Bart P.H.J. ThommaPlant Cell Jul 2008, 20 (7) 1948-1963; DOI: https://doi.org/10.1105/tpc.108.059394
The fungus Cladosporium fulvum secretes the effector protein Avr2 during infection of tomato. This work shows that Avr2 interacts with several extracellular Cys proteases in tomato and Arabidopsis. Avr2 expression causes enhanced susceptibility towards several pathogens in both plant species, and, with RNAi-mediated gene silencing in C. fulvum, it is shown that Avr2 is a genuine virulence factor.
Yang, Jilai
- Open AccessDolichol Biosynthesis and Its Effects on the Unfolded Protein Response and Abiotic Stress Resistance in ArabidopsisHairong Zhang, Kiyoshi Ohyama, Julie Boudet, Zhizhong Chen, Jilai Yang, Min Zhang, Toshiya Muranaka, Christophe Maurel, Jian-Kang Zhu, Zhizhong GongPlant Cell Jul 2008, 20 (7) 1879-1898; DOI: https://doi.org/10.1105/tpc.108.061150
This work describes the isolation and biochemical characterization of the leaf wilting1 (lew1) gene that is responsible for the biosynthesis of dolichols in Arabidopsis. Genetic, molecular, and physiological analyses of the glycosylation defective lew1 mutant show that drought stress signaling converges with endoplasmic reticulum (ER) signaling to regulate ER/UPR (unfolded protein response) and osmotic stress responses.
Yang, Yi
- You have accessRestricted AccessBadh2, Encoding Betaine Aldehyde Dehydrogenase, Inhibits the Biosynthesis of 2-Acetyl-1-Pyrroline, a Major Component in Rice FragranceSaihua Chen, Yi Yang, Weiwei Shi, Qing Ji, Fei He, Ziding Zhang, Zhukuan Cheng, Xiangnong Liu, Mingliang XuPlant Cell Jul 2008, 20 (7) 1850-1861; DOI: https://doi.org/10.1105/tpc.108.058917
2-acetyl-1-pyrroline (2AP) is a potent flavor component that gives fragrant rice varieties a distinctive flavor. This study shows that a functional Badh2 allele present in nonfragrant rice varieties encodes an enzyme that inhibits 2AP synthesis by exhausting its precursor, whereas null badh2 alleles, found in fragrant rice varieties, result in 2AP accumulation due to a lack of active BADH2 enzyme.
Yoshida, Mayumi
- You have accessRestricted AccessMutation of the Plastidial α-Glucan Phosphorylase Gene in Rice Affects the Synthesis and Structure of Starch in the EndospermHikaru Satoh, Kensuke Shibahara, Takashi Tokunaga, Aiko Nishi, Mikako Tasaki, Seon-Kap Hwang, Thomas W. Okita, Nanae Kaneko, Naoko Fujita, Mayumi Yoshida, Yuko Hosaka, Aya Sato, Yoshinori Utsumi, Takashi Ohdan, Yasunori NakamuraPlant Cell Jul 2008, 20 (7) 1833-1849; DOI: https://doi.org/10.1105/tpc.107.054007
This study identifies rice plants with mutations in the plastidial phosphorylase (Pho1) gene. The reduced starch content and altered amylopectin structure found in the endosperm of these mutants suggests that Pho1 is a key player in starch biosynthesis in the endosperm of rice.
Yoshida, Yuki
- Open AccessSCREAM/ICE1 and SCREAM2 Specify Three Cell-State Transitional Steps Leading to Arabidopsis Stomatal DifferentiationMasahiro M. Kanaoka, Lynn Jo Pillitteri, Hiroaki Fujii, Yuki Yoshida, Naomi L. Bogenschutz, Junji Takabayashi, Jian-Kang Zhu, Keiko U. ToriiPlant Cell Jul 2008, 20 (7) 1775-1785; DOI: https://doi.org/10.1105/tpc.108.060848
Stomata are formed through a series of events: initiation, proliferation, and terminal differentiation. This work identifies the upstream regulator of the cold-induced transcriptome as the core component of stomatal differentiation and suggests a model strikingly similar to cell-type differentiation in animals.
Yu, Fei
- You have accessRestricted AccessMutations in SUPPRESSOR OF VARIEGATION1, a Factor Required for Normal Chloroplast Translation, Suppress var2-Mediated Leaf Variegation in ArabidopsisFei Yu, Xiayan Liu, Muath Alsheikh, Sungsoon Park, Steve RodermelPlant Cell Jul 2008, 20 (7) 1786-1804; DOI: https://doi.org/10.1105/tpc.107.054965
The Arabidopsis var2 variegation mutant has green-and white-sectored leaves due to lack of VAR2, a chloroplast FtsH metalloprotease. Variegation can be suppressed in var2 by impaired chloroplast translation caused by lesions in SVR1 and SVR2, nuclear genes that encode a chloroplast pseudouridine synthase and the ClpR1 subunit of the chloroplast Clp protease, respectively.
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Zhang, Hairong
- Open AccessDolichol Biosynthesis and Its Effects on the Unfolded Protein Response and Abiotic Stress Resistance in ArabidopsisHairong Zhang, Kiyoshi Ohyama, Julie Boudet, Zhizhong Chen, Jilai Yang, Min Zhang, Toshiya Muranaka, Christophe Maurel, Jian-Kang Zhu, Zhizhong GongPlant Cell Jul 2008, 20 (7) 1879-1898; DOI: https://doi.org/10.1105/tpc.108.061150
This work describes the isolation and biochemical characterization of the leaf wilting1 (lew1) gene that is responsible for the biosynthesis of dolichols in Arabidopsis. Genetic, molecular, and physiological analyses of the glycosylation defective lew1 mutant show that drought stress signaling converges with endoplasmic reticulum (ER) signaling to regulate ER/UPR (unfolded protein response) and osmotic stress responses.
Zhang, Min
- Open AccessDolichol Biosynthesis and Its Effects on the Unfolded Protein Response and Abiotic Stress Resistance in ArabidopsisHairong Zhang, Kiyoshi Ohyama, Julie Boudet, Zhizhong Chen, Jilai Yang, Min Zhang, Toshiya Muranaka, Christophe Maurel, Jian-Kang Zhu, Zhizhong GongPlant Cell Jul 2008, 20 (7) 1879-1898; DOI: https://doi.org/10.1105/tpc.108.061150
This work describes the isolation and biochemical characterization of the leaf wilting1 (lew1) gene that is responsible for the biosynthesis of dolichols in Arabidopsis. Genetic, molecular, and physiological analyses of the glycosylation defective lew1 mutant show that drought stress signaling converges with endoplasmic reticulum (ER) signaling to regulate ER/UPR (unfolded protein response) and osmotic stress responses.
Zhang, Xuemin
- You have accessRestricted AccessRXLR-Mediated Entry of Phytophthora sojae Effector Avr1b into Soybean Cells Does Not Require Pathogen-Encoded MachineryDaolong Dou, Shiv D. Kale, Xia Wang, Rays H.Y. Jiang, Nathan A. Bruce, Felipe D. Arredondo, Xuemin Zhang, Brett M. TylerPlant Cell Jul 2008, 20 (7) 1930-1947; DOI: https://doi.org/10.1105/tpc.107.056093
In this study, the authors show that N-terminal RXLR and dEER motifs, together with flanking sequences, are necessary and sufficient to translocate oomycete effector proteins into host plant cells across the plasma cell membrane. Translocation occurs with purified proteins, indicating that no other pathogen machinery is required.
Zhang, Ziding
- You have accessRestricted AccessBadh2, Encoding Betaine Aldehyde Dehydrogenase, Inhibits the Biosynthesis of 2-Acetyl-1-Pyrroline, a Major Component in Rice FragranceSaihua Chen, Yi Yang, Weiwei Shi, Qing Ji, Fei He, Ziding Zhang, Zhukuan Cheng, Xiangnong Liu, Mingliang XuPlant Cell Jul 2008, 20 (7) 1850-1861; DOI: https://doi.org/10.1105/tpc.108.058917
2-acetyl-1-pyrroline (2AP) is a potent flavor component that gives fragrant rice varieties a distinctive flavor. This study shows that a functional Badh2 allele present in nonfragrant rice varieties encodes an enzyme that inhibits 2AP synthesis by exhausting its precursor, whereas null badh2 alleles, found in fragrant rice varieties, result in 2AP accumulation due to a lack of active BADH2 enzyme.
Zhu, Jian-Kang
- Open AccessSCREAM/ICE1 and SCREAM2 Specify Three Cell-State Transitional Steps Leading to Arabidopsis Stomatal DifferentiationMasahiro M. Kanaoka, Lynn Jo Pillitteri, Hiroaki Fujii, Yuki Yoshida, Naomi L. Bogenschutz, Junji Takabayashi, Jian-Kang Zhu, Keiko U. ToriiPlant Cell Jul 2008, 20 (7) 1775-1785; DOI: https://doi.org/10.1105/tpc.108.060848
Stomata are formed through a series of events: initiation, proliferation, and terminal differentiation. This work identifies the upstream regulator of the cold-induced transcriptome as the core component of stomatal differentiation and suggests a model strikingly similar to cell-type differentiation in animals.
- Open AccessDolichol Biosynthesis and Its Effects on the Unfolded Protein Response and Abiotic Stress Resistance in ArabidopsisHairong Zhang, Kiyoshi Ohyama, Julie Boudet, Zhizhong Chen, Jilai Yang, Min Zhang, Toshiya Muranaka, Christophe Maurel, Jian-Kang Zhu, Zhizhong GongPlant Cell Jul 2008, 20 (7) 1879-1898; DOI: https://doi.org/10.1105/tpc.108.061150
This work describes the isolation and biochemical characterization of the leaf wilting1 (lew1) gene that is responsible for the biosynthesis of dolichols in Arabidopsis. Genetic, molecular, and physiological analyses of the glycosylation defective lew1 mutant show that drought stress signaling converges with endoplasmic reticulum (ER) signaling to regulate ER/UPR (unfolded protein response) and osmotic stress responses.