Probable transcriptional regulator that acts as a repressor of the gibberellin (GA) signaling pathway. Probably acts by participating in large multiprotein complexes that repress transcription of GA-inducible genes. Upon GA application, it is degraded by the proteasome, allowing the GA signaling pathway. The DELLA motif is required for its GA-induced degradation. Phosphorylated. Ubiquitinated. Upon GA application it is ubiquitinated, leading to its subsequent degradation (Probable). Variations between cultivars affect flowering time and plant height. This gene, also known as the 'green revolution gene' has been introduced by conventional breeding procedures into several cultivars. It produces shorter plants, increase grain yield at the expense of straw biomass, and are more resistant to damage by wind and rain. Belongs to the GRAS family. DELLA subfamily. All things dwarfed and beautiful - Issue 70 of May 2006