Plant Cell Plant Cell 20th
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

First published online December 17, 2004; 10.1105/tpc.104.028472

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
17/1/92    most recent
tpc.104.028472v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Related articles in Plant Cell
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via ISI Web of Science (54)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Greenboim-Wainberg, Y.
Right arrow Articles by Weiss, D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Greenboim-Wainberg, Y.
Right arrow Articles by Weiss, D.
Agricola
Right arrow Articles by Greenboim-Wainberg, Y.
Right arrow Articles by Weiss, D.
The Plant Cell 17:92-102 (2005)
© 2005 American Society of Plant Biologists

Cross Talk between Gibberellin and Cytokinin: The Arabidopsis GA Response Inhibitor SPINDLY Plays a Positive Role in Cytokinin Signaling

Yaarit Greenboim-Wainberga, Inbar Maymona, Roy Borochova, John Alvarezb, Neil Olszewskic, Naomi Oria, Yuval Eshedb and David Weissa,1

a Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
b Department of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
c Department of Plant Biology and Plant Molecular Genetic Institute, University of Minnesota, St. Paul, Minnesota 55108

1 To whom correspondence should be addressed. E-mail weiss{at}agri.huji.ac.il; fax 972-8-9468263.

SPINDLY (SPY) is a negative regulator of gibberellin (GA) responses; however, spy mutants exhibit various phenotypic alterations not found in GA-treated plants. Assaying for additional roles for SPY revealed that spy mutants are resistant to exogenously applied cytokinin. GA also repressed the effects of cytokinin, suggesting that there is cross talk between the two hormone-response pathways, which may involve SPY function. Two spy alleles showing severe (spy-4) and mild (spy-3) GA-associated phenotypes exhibited similar resistance to cytokinin, suggesting that SPY enhances cytokinin responses and inhibits GA signaling through distinct mechanisms. GA and spy repressed numerous cytokinin responses, from seedling development to senescence, indicating that cross talk occurs early in the cytokinin-signaling pathway. Because GA3 and spy-4 inhibited induction of the cytokinin primary-response gene, type-A Arabidopsis response regulator 5, SPY may interact with and modify elements from the phosphorelay cascade of the cytokinin signal transduction pathway. Cytokinin, on the other hand, had no effect on GA biosynthesis or responses. Our results demonstrate that SPY acts as both a repressor of GA responses and a positive regulator of cytokinin signaling. Hence, SPY may play a central role in the regulation of GA/cytokinin cross talk during plant development.


Related articles in Plant Cell:

Cross Talk between Gibberellin and Cytokinin Signaling Converges on SPINDLY
Nancy A. Eckardt
Plant Cell 2005 17: 1-3. [Full Text]  



This article has been cited by other articles:


Home page
 Plant Physiol.Home page
B. Molesini, T. Pandolfini, G. L. Rotino, V. Dani, and A. Spena
Aucsia Gene Silencing Causes Parthenocarpic Fruit Development in Tomato
Plant Physiology, January 1, 2009; 149(1): 534 - 548.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
Z. Lin, L. Arciga-Reyes, S. Zhong, L. Alexander, R. Hackett, I. Wilson, and D. Grierson
SlTPR1, a tomato tetratricopeptide repeat protein, interacts with the ethylene receptors NR and LeETR1, modulating ethylene and auxin responses and development
J. Exp. Bot., November 1, 2008; 59(15): 4271 - 4287.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
L. Maes, D. Inze, and A. Goossens
Functional Specialization of the TRANSPARENT TESTA GLABRA1 Network Allows Differential Hormonal Control of Laminal and Marginal Trichome Initiation in Arabidopsis Rosette Leaves
Plant Physiology, November 1, 2008; 148(3): 1453 - 1464.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
F. Chevalier, D. Perazza, F. Laporte, G. Le Henanff, P. Hornitschek, J.-M. Bonneville, M. Herzog, and G. Vachon
GeBP and GeBP-Like Proteins Are Noncanonical Leucine-Zipper Transcription Factors That Regulate Cytokinin Response in Arabidopsis
Plant Physiology, March 1, 2008; 146(3): 1142 - 1154.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
S. Toh, A. Imamura, A. Watanabe, K. Nakabayashi, M. Okamoto, Y. Jikumaru, A. Hanada, Y. Aso, K. Ishiyama, N. Tamura, et al.
High Temperature-Induced Abscisic Acid Biosynthesis and Its Role in the Inhibition of Gibberellin Action in Arabidopsis Seeds
Plant Physiology, March 1, 2008; 146(3): 1368 - 1385.
[Abstract] [Full Text] [PDF]

Home page
 Plant Cell PhysiolHome page
K. Ishida, T. Yamashino, A. Yokoyama, and T. Mizuno
Three Type-B Response Regulators, ARR1, ARR10 and ARR12, Play Essential but Redundant Roles in Cytokinin Signal Transduction Throughout the Life Cycle of Arabidopsis thaliana
Plant Cell Physiol., January 1, 2008; 49(1): 47 - 57.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
Y. Gan, H. Yu, J. Peng, and P. Broun
Genetic and Molecular Regulation by DELLA Proteins of Trichome Development in Arabidopsis
Plant Physiology, November 1, 2007; 145(3): 1031 - 1042.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
D. Weiss and N. Ori
Mechanisms of Cross Talk between Gibberellin and Other Hormones
Plant Physiology, July 1, 2007; 144(3): 1240 - 1246.
[Full Text] [PDF]

Home page
 DevelopmentHome page
Y. Gan, C. Liu, H. Yu, and P. Broun
Integration of cytokinin and gibberellin signalling by Arabidopsis transcription factors GIS, ZFP8 and GIS2 in the regulation of epidermal cell fate
Development, June 1, 2007; 134(11): 2073 - 2081.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
A. L. Silverstone, T.-S. Tseng, S. M. Swain, A. Dill, S. Y. Jeong, N. E. Olszewski, and T.-p. Sun
Functional Analysis of SPINDLY in Gibberellin Signaling in Arabidopsis
Plant Physiology, February 1, 2007; 143(2): 987 - 1000.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
A. Rosado, A. L. Schapire, R. A. Bressan, A. L. Harfouche, P. M. Hasegawa, V. Valpuesta, and M. A. Botella
The Arabidopsis Tetratricopeptide Repeat-Containing Protein TTL1 Is Required for Osmotic Stress Responses and Abscisic Acid Sensitivity
Plant Physiology, November 1, 2006; 142(3): 1113 - 1126.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
M. Frigerio, D. Alabadi, J. Perez-Gomez, L. Garcia-Carcel, A. L. Phillips, P. Hedden, and M. A. Blazquez
Transcriptional Regulation of Gibberellin Metabolism Genes by Auxin Signaling in Arabidopsis
Plant Physiology, October 1, 2006; 142(2): 553 - 563.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
K. Yuan and J. Wysocka-Diller
Phytohormone signalling pathways interact with sugars during seed germination and seedling development
J. Exp. Bot., September 1, 2006; 57(12): 3359 - 3367.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
T. Sakamoto, H. Sakakibara, M. Kojima, Y. Yamamoto, H. Nagasaki, Y. Inukai, Y. Sato, and M. Matsuoka
Ectopic Expression of KNOTTED1-Like Homeobox Protein Induces Expression of Cytokinin Biosynthesis Genes in Rice
Plant Physiology, September 1, 2006; 142(1): 54 - 62.
[Abstract] [Full Text] [PDF]

Home page
 Proc. Natl. Acad. Sci. USAHome page
M. E. Forsythe, D. C. Love, B. D. Lazarus, E. J. Kim, W. A. Prinz, G. Ashwell, M. W. Krause, and J. A. Hanover
Caenorhabditis elegans ortholog of a diabetes susceptibility locus: oga-1 (O-GlcNAcase) knockout impacts O-GlcNAc cycling, metabolism, and dauer
PNAS, August 8, 2006; 103(32): 11952 - 11957.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
E. van der Graaff, R. Schwacke, A. Schneider, M. Desimone, U.-I. Flugge, and R. Kunze
Transcription Analysis of Arabidopsis Membrane Transporters and Hormone Pathways during Developmental and Induced Leaf Senescence
Plant Physiology, June 1, 2006; 141(2): 776 - 792.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
C. Barth, M. De Tullio, and P. L Conklin
The role of ascorbic acid in the control of flowering time and the onset of senescence
J. Exp. Bot., May 1, 2006; 57(8): 1657 - 1665.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
L. M. Hartweck, R. K. Genger, W. M. Grey, and N. E. Olszewski
SECRET AGENT and SPINDLY have overlapping roles in the development of Arabidopsis thaliana L. Heyn.
J. Exp. Bot., March 1, 2006; 57(4): 865 - 875.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
L. M. Hartweck and N. E. Olszewski
Rice GIBBERELLIN INSENSITIVE DWARF1 Is a Gibberellin Receptor That Illuminates and Raises Questions about GA Signaling
PLANT CELL, February 1, 2006; 18(2): 278 - 282.
[Full Text] [PDF]

Home page
 Plant CellHome page
M. Riefler, O. Novak, M. Strnad, and T. Schmulling
Arabidopsis Cytokinin Receptor Mutants Reveal Functions in Shoot Growth, Leaf Senescence, Seed Size, Germination, Root Development, and Cytokinin Metabolism
PLANT CELL, January 1, 2006; 18(1): 40 - 54.
[Abstract] [Full Text] [PDF]

Home page
 Sci SignalHome page
D. C. Love and J. A. Hanover
The Hexosamine Signaling Pathway: Deciphering the "O-GlcNAc Code"
Sci. Signal., November 29, 2005; 2005(312): re13 - re13.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
V. D. Cin, M. Danesin, A. Boschetti, A. Dorigoni, and A. Ramina
Ethylene biosynthesis and perception in apple fruitlet abscission (Malus domestica L. Borck)
J. Exp. Bot., November 1, 2005; 56(421): 2995 - 3005.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
T. McLellan
Correlated evolution of leaf shape and trichomes in Begonia dregei (Begoniaceae)
Am. J. Botany, October 1, 2005; 92(10): 1616 - 1623.
[Abstract] [Full Text] [PDF]

Home page
 J. Virol.Home page
D. Chen, S. Juarez, L. Hartweck, J. M. Alamillo, C. Simon-Mateo, J. J. Perez, M. R. Fernandez-Fernandez, N. E. Olszewski, and J. A. Garcia
Identification of Secret Agent as the O-GlcNAc Transferase That Participates in Plum Pox Virus Infection
J. Virol., August 1, 2005; 79(15): 9381 - 9387.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
H. Jiang, S. Wang, L. Dang, S. Wang, H. Chen, Y. Wu, X. Jiang, and P. Wu
A Novel Short-Root Gene Encodes a Glucosamine-6-Phosphate Acetyltransferase Required for Maintaining Normal Root Cell Shape in Rice
Plant Physiology, May 1, 2005; 138(1): 232 - 242.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications THE PLANT CELL PLANT PHYSIOLOGY
Copyright © 2005 by the American Society of Plant Biologists