Evolutionary conservation of plant gibberellin signalling pathway components.

ABSTRACT:

Background

Gibberellins (GA) are plant hormones that can regulate germination, elongation growth, and sex determination. They ubiquitously occur in seed plants. The discovery of gibberellin receptors, together with advances in understanding the function of key components of GA signalling in Arabidopsis and rice, reveal a fairly short GA signal transduction route. The pathway essentially consists of GID1 gibberellin receptors that interact with F-box proteins, which in turn regulate degradation of downstream DELLA proteins, suppressors of GA-controlled responses.

Results

Arabidopsis sequences of the gibberellin signalling compounds were used to screen databases from a variety of plants, including protists, for homologues, providing indications for the degree of conservation o

SUBMITTER: Vandenbussche F 

PROVIDER: S-EPMC2234411 | biostudies-literature | 2007 Nov

REPOSITORIES: biostudies-literature