Please use this identifier to cite or link to this item: https://doi.org/10.1242/dev.00992
Title: Gibberellin regulates Arabidopsis floral development via suppression of DELLA protein function
Authors: Cheng, H.
Qin, L.
Lee, S.
Fu, X.
Richards, D.E.
Cao, D.
Luo, D.
Harberd, N.P.
Peng, J. 
Keywords: DELLA proteins
Floral development
Gibberellin
Stamen development
Issue Date: Mar-2004
Citation: Cheng, H., Qin, L., Lee, S., Fu, X., Richards, D.E., Cao, D., Luo, D., Harberd, N.P., Peng, J. (2004-03). Gibberellin regulates Arabidopsis floral development via suppression of DELLA protein function. Development 131 (5) : 1055-1064. ScholarBank@NUS Repository. https://doi.org/10.1242/dev.00992
Abstract: The phytohormone gibberellin (GA) regulates the development and fertility of Arabidopsis flowers. The mature flowers of GA-deficient mutant plants typically exhibit reduced elongation growth of petals and stamens. In addition, GA-deficiency blocks anther development, resulting in male sterility. Previous analyses have shown that GA promotes the elongation of plant organs by opposing the function of the DELLA proteins, a family of nuclear growth repressors. However, it was not clear that the DELLA proteins are involved in the GA-regulation of stamen and anther development. We show that GA regulates cell elongation rather than cell division during Arabidopsis stamen filament elongation. In addition, GA regulates the cellular developmental pathway of anthers leading from microspore to mature pollen grain. Genetic analysis shows that the Arabidopsis DELLA proteins RGA and RGL2 jointly repress petal, stamen and anther development in GA-deficient plants, and that this function is enhanced by RGL1 activity. GA thus promotes Arabidopsis petal, stamen and anther development by opposing the function of the DELLA proteins RGA, RGL1 and RGL2.
Source Title: Development
URI: http://scholarbank.nus.edu.sg/handle/10635/102458
ISSN: 09501991
DOI: 10.1242/dev.00992
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

305
checked on Sep 24, 2018

WEB OF SCIENCETM
Citations

288
checked on Sep 24, 2018

Page view(s)

52
checked on Sep 21, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.