Interaction between gibberellins and brassinosteroids during etiolated growth in Arabidopsis.

ABSTRACT: The proper transition between the skotomorphogenic and photomorphogenic developmental programs is key for seedling survival and it is therefore tightly regulated. Besides light, which is the major cue that triggers this transition, several hormone pathways participate in this control, mainly antagonizing the light effect. Two of these hormones are gibberellins (GA) and brassinosteroids (BR). Both hormones promote the skotomorphogenesis and prevent photomorphogenesis, as evidenced by the partially de-etiolated phenotype caused by GA or BR deficiency, or by a blockage in the respective signaling pathways. We have previously shown that BR mediate GA activity in the control of this transition. For instance, treatment of dark-grown, GA-deficient seedlings with BRs was able to partially restore

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: David Alabadi 

PROVIDER: E-GEOD-32889 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress