|
Plant Cell, Vol. 10, 2047-2062, December 1998, Copyright © 1998, American Society of Plant Physiologists
GLABROUS1 Overexpression and TRIPTYCHON Alter the Cell Cycle and Trichome Cell Fate in Arabidopsis
Daniel B. Szymanskia and
M. David Marksa,b
a Department of Genetics and Cell Biology, University of Minnesota, 1445 Gortner Avenue, St. Paul, Minnesota 55108-1095
b Plant Molecular Genetics Institute, University of Minnesota, St. Paul, Minnesota 55108
Correspondence to:
M. David Marks, dmarks{at}biosci.cbs.umn.edu (E-mail), 612-625-5754 (fax).
Cellular competence, initiation cues, and inhibition signals control the distribution of trichomes on the Arabidopsis leaf. The GLABROUS1 (GL1) gene has a dual role in that it is required for trichome initiation, but GL1 overexpression reduces trichome number. We have found that a mutation in the TRIPTYCHON (TRY) gene partially suppresses the GL1 overexpression phenotype but not in a way that indicates that TRY directly controls an epidermal inhibition pathway. Surprisingly, cauliflower mosaic virus 35S::GL1 try plants contain a subclass of trichomes derived from the subepidermal layer. Altered cell cycle control was also detected in 35S::GL1 and try plants. A mutation in TRY led to increased epidermal and mesophyll cell number, a reduction in endoreduplication in the epidermis, and an increase in endoreduplication in trichomes. GL1 overexpression also reduced endoreduplication levels in both the epidermis and trichomes; however, in the presence of try, it synergistically enhanced trichome endoreduplication. Interactions with the COTYLEDON TRICHOME1 (COT1) gene indicate that GL1 and TRY control trichome development and may be involved in cell cycle control during leaf development.
This article has been cited by other articles:

|
 |

|
 |
 
R. Tominaga, M. Iwata, R. Sano, K. Inoue, K. Okada, and T. Wada
Arabidopsis CAPRICE-LIKE MYB 3 (CPL3) controls endoreduplication and flowering development in addition to trichome and root hair formation
Development,
April 1, 2008;
135(7):
1335 - 1345.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. J. Lee, A. W. Woodward, and Z. J. Chen
Gene Expression Changes and Early Events in Cotton Fibre Development
Ann. Bot.,
December 1, 2007;
100(7):
1391 - 1401.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
K. Morohashi, M. Zhao, M. Yang, B. Read, A. Lloyd, R. Lamb, and E. Grotewold
Participation of the Arabidopsis bHLH Factor GL3 in Trichome Initiation Regulatory Events
Plant Physiology,
November 1, 2007;
145(3):
736 - 746.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
R. M. Stupar, P. B. Bhaskar, B. S. Yandell, W. A. Rensink, A. L. Hart, S. Ouyang, R. E. Veilleux, J. S. Busse, R. J. Erhardt, C. R. Buell, et al.
Phenotypic and Transcriptomic Changes Associated With Potato Autopolyploidization
Genetics,
August 1, 2007;
176(4):
2055 - 2067.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
F. Quattrocchio, W. Verweij, A. Kroon, C. Spelt, J. Mol, and R. Koes
PH4 of Petunia Is an R2R3 MYB Protein That Activates Vacuolar Acidification through Interactions with Basic-Helix-Loop-Helix Transcription Factors of the Anthocyanin Pathway
PLANT CELL,
May 1, 2006;
18(5):
1274 - 1291.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
Y. Wu, A. C. Machado, R. G. White, D. J. Llewellyn, and E. S. Dennis
Expression Profiling Identifies Genes Expressed Early During Lint Fibre Initiation in Cotton
Plant Cell Physiol.,
January 1, 2006;
47(1):
107 - 127.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
L. B. Lai, J. A. Nadeau, J. Lucas, E.-K. Lee, T. Nakagawa, L. Zhao, M. Geisler, and F. D. Sack
The Arabidopsis R2R3 MYB Proteins FOUR LIPS and MYB88 Restrict Divisions Late in the Stomatal Cell Lineage
PLANT CELL,
October 1, 2005;
17(10):
2754 - 2767.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
V. Kirik, M. M. Lee, K. Wester, U. Herrmann, Z. Zheng, D. Oppenheimer, J. Schiefelbein, and M. Hulskamp
Functional diversification of MYB23 and GL1 genes in trichome morphogenesis and initiation
Development,
April 1, 2005;
132(7):
1477 - 1485.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
L. Lu, Y.-R. J. Lee, R. Pan, J. N. Maloof, and B. Liu
An Internal Motor Kinesin Is Associated with the Golgi Apparatus and Plays a Role in Trichome Morphogenesis in Arabidopsis
Mol. Biol. Cell,
February 1, 2005;
16(2):
811 - 823.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
L. Serna
A Network of Interacting Factors Triggering Different Cell Fates
PLANT CELL,
September 1, 2004;
16(9):
2258 - 2263.
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. J. Esch, M. Chen, M. Sanders, M. Hillestad, S. Ndkium, B. Idelkope, J. Neizer, and M. D. Marks
A contradictory GLABRA3 allele helps define gene interactions controlling trichome development in Arabidopsis
Development,
December 15, 2003;
130(24):
5885 - 5894.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
P. Mylona, P. Linstead, R. Martienssen, and L. Dolan
SCHIZORIZA controls an asymmetric cell division and restricts epidermal identity in the Arabidopsis root
Development,
March 11, 2003;
129(18):
4327 - 4334.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
A. Schnittger, C. Weinl, D. Bouyer, U. Schobinger, and M. Hulskamp
Misexpression of the Cyclin-Dependent Kinase Inhibitor ICK1/KRP1 in Single-Celled Arabidopsis Trichomes Reduces Endoreduplication and Cell Size and Induces Cell Death
PLANT CELL,
February 1, 2003;
15(2):
303 - 315.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
A. Schnittger, U. Schobinger, D. Bouyer, C. Weinl, Y.-D. Stierhof, and M. Hulskamp
Ectopic D-type cyclin expression induces not only DNA replication but also cell division in Arabidopsis trichomes
PNAS,
April 30, 2002;
99(9):
6410 - 6415.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
H. J. Kim and B. A. Triplett
Cotton Fiber Growth in Planta and in Vitro. Models for Plant Cell Elongation and Cell Wall Biogenesis
Plant Physiology,
December 1, 2001;
127(4):
1361 - 1366.
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. Walker, D. Oppenheimer, J Concienne, and J. Larkin
SIAMESE, a gene controlling the endoreduplication cell cycle in Arabidopsis thaliana trichomes
Development,
January 9, 2000;
127(18):
3931 - 3940.
[Abstract]
[PDF]
|
 |
|

|
 |

|
 |
 
D. B. Szymanski, M. D. Marks, and S. M. Wick
Organized F-Actin Is Essential for Normal Trichome Morphogenesis in Arabidopsis
PLANT CELL,
December 1, 1999;
11(12):
2331 - 2348.
[Abstract]
[Full Text]
|
 |
|

|
 |

|
 |
 
A. Schnittger, U. Folkers, B. Schwab, G. Jürgens, and M. Hülskamp
Generation of a Spacing Pattern: The Role of TRIPTYCHON in Trichome Patterning in Arabidopsis
PLANT CELL,
June 1, 1999;
11(6):
1105 - 1116.
[Abstract]
[Full Text]
|
 |
|
|
|