Plant Physiol. Illumina
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
QUICK SEARCH:   [advanced]


     

Plant Physiology Preview
Published on September 3, 2004; 10.1104/pp.103.034876

This Article
Right arrow Full Text (Plant Physiology Preview (PDF))
Right arrow All Versions of this Article:
136/1/2782    most recent
pp.103.034876v1
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 Similar articles in this journal
Right arrow Similar articles in 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 Web of Science (17)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Bassel, G. W.
Right arrow Articles by Bewley, J. D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Bassel, G. W.
Right arrow Articles by Bewley, J. D.
Agricola
Right arrow Articles by Bassel, G. W.
Right arrow Articles by Bewley, J. D.

Received October 16, 2003
Returned for revision June 18, 2004
Accepted June 18, 2004

Down-Regulation of DELLA Genes Is Not Essential for Germination of Tomato, Soybean, and Arabidopsis Seeds

George W. Bassel , Elzbieta Zielinska , Robert T. Mullen , and J. Derek Bewley *

Department of Botany, University of Guelph, Guelph, Ontario, Canada N1G 2W1

* Corresponding author; email: dbewley{at}uoguelph.ca.

The relationship between expression of a negative regulator of GA signal transduction (RGL2) belonging to the DELLA gene family and repression of Arabidopsis seed germination has been studied (Lee S, Cheng H, King KE, Wang W, He Y, Hussain A, Lo J, Harberd NP, Peng J [2002] Genes and Development 16: 646-658). There is one DELLA gene (LeGAI) present in tomato (Lycopersicon esculentum Mill.), which is expressed in both vegetative and reproductive tissues. During germination of wild-type tomato seed, there was no decline in the expression of LeGAI in either the embryo or the endosperm. Rather, LeGAI transcripts increased in these tissues following imbibition and remained high during and following germination. A similar increase in LeGAI transcripts occurred in the endosperm and embryo of GA-treated gib-1 mutant seed during and following germination. Likewise in soybean (Glycine max) seed, there was no decline in the expression of two DELLA genes in the radicle before or after germination. Upon reexamination of RGL2 in Arabidopsis seeds, a decline in its expression was noted but only after radicle emergence, i.e. after germination had been completed. Taken together, these data are consistent with GA-induced down-regulation of DELLA genes not being a prerequisite for germination of tomato, soybean, and Arabidopsis seeds.




This article has been cited by other articles:


Home page
 Plant Physiol.Home page
J. Argyris, P. Dahal, E. Hayashi, D. W. Still, and K. J. Bradford
Genetic Variation for Lettuce Seed Thermoinhibition Is Associated with Temperature-Sensitive Expression of Abscisic Acid, Gibberellin, and Ethylene Biosynthesis, Metabolism, and Response Genes
Plant Physiology, October 1, 2008; 148(2): 926 - 947.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
G. W. Bassel, R. T. Mullen, and J. D. Bewley
procera is a putative DELLA mutant in tomato (Solanum lycopersicum): effects on the seed and vegetative plant
J. Exp. Bot., February 3, 2008; (2008) erm354v1.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
T. Ariizumi and C. M. Steber
Seed Germination of GA-Insensitive sleepy1 Mutants Does Not Require RGL2 Protein Disappearance in Arabidopsis
PLANT CELL, March 1, 2007; 19(3): 791 - 804.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
E. Marti, C. Gisbert, G. J. Bishop, M. S. Dixon, and J. L. Garcia-Martinez
Genetic and physiological characterization of tomato cv. Micro-Tom
J. Exp. Bot., June 1, 2006; 57(9): 2037 - 2047.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
G. W. Bassel, R. T. Mullen, and J. D. Bewley
ABI3 expression ceases following, but not during, germination of tomato and Arabidopsis seeds
J. Exp. Bot., March 1, 2006; 57(6): 1291 - 1297.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 2004 by the American Society of Plant Biologists