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Blue light-dependent interactions of CRY1 with GID1 and DELLA proteins regulate gibberellin signaling and photomorphogenesis in Arabidopsis

The Plant cell. 2021-05; 
Peng Xu, Huiru Chen, Ting Li, Feng Xu, Zhilei Mao, Xiaoli Cao, Langxi Miao, Shasha Du, Jie Hua, Jiachen Zhao, Tongtong Guo, Shuang Kou, Wenxiu Wang, Hong-Quan Yang
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Catalog Antibody Prey proteins were detected by anti-His (GenScript, A00186, 1:2,000) or anti-GST (Genscript, A00865-100, 1:2,000) Get A Quote

摘要

Cryptochromes are blue light photoreceptors that mediate various light responses in plants and mammals. In Arabidopsis (Arabidopsis thaliana), cryptochrome 1 (CRY1) mediates blue light-induced photomorphogenesis, which is characterized by reduced hypocotyl elongation and enhanced anthocyanin production, whereas gibberellin (GA) signaling mediated by the GA receptor GA-INSENSITIVE DWARF1 (GID1) and DELLA proteins promotes hypocotyl elongation and inhibits anthocyanin accumulation. Whether CRY1 control of photomorphogenesis involves regulation of GA signaling is largely unknown. Here, we show that CRY1 signaling involves the inhibition of GA signaling through repression of GA-induced degradation of DELLA proteins... More

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