Title : The blue light receptor CRY1 interacts with GID1 and DELLA proteins to repress GA signaling during photomorphogenesis in Arabidopsis.

Pub. Date : 2021 Aug 2

PMID : 33971366






5 Functional Relationships(s)
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1 Here, we show that blue light represses GA-induced degradation of DELLA proteins (DELLAs), which are key negative regulators in the GA signaling pathway, via CRY1, thereby inhibiting the GA response during hypocotyl elongation. Gallium cryptochrome 1 Arabidopsis thaliana
2 Here, we show that blue light represses GA-induced degradation of DELLA proteins (DELLAs), which are key negative regulators in the GA signaling pathway, via CRY1, thereby inhibiting the GA response during hypocotyl elongation. Gallium cryptochrome 1 Arabidopsis thaliana
3 Here, we show that blue light represses GA-induced degradation of DELLA proteins (DELLAs), which are key negative regulators in the GA signaling pathway, via CRY1, thereby inhibiting the GA response during hypocotyl elongation. Gallium cryptochrome 1 Arabidopsis thaliana
4 Data from our in vitro and in vivo biochemical analyses demonstrate that CRY1 physically interacts with GA receptors-GA INSENSITIVE DWARF 1 proteins (GID1s)-and DELLAs in a blue light-dependent manner. Gallium cryptochrome 1 Arabidopsis thaliana
5 Taken together, our findings demonstrate that CRY1 signals by stabilizing DELLAs through binding and inactivating GID1s and provide new insight into the mechanism by which blue light antagonizes the function of GA in photomorphogenesis. Gallium cryptochrome 1 Arabidopsis thaliana