The action mechanisms of plant cryptochromes.
The action mechanisms of plant cryptochromes.
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DOI:
10.1016/j.tplants.2011.09.002
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发表时间:
2011-12
影响因子:
20.5
通讯作者:
Lin, Chentao
中科院分区:
文献类型:
--
作者:
Liu, Hongtao;Liu, Bin;Zhao, Chenxi;Pepper, Michael;Lin, Chentao
The blue light receptors cryptochromes mediate various light responses in plants. The photoexcited cryptochrome molecules undergo a number of biophysical and biochemical changes, including electron transfer, phosphorylation, and ubiquitination, resulting in conformational changes to propagate light signals. Two modes of cryptochrome signal transduction have been recently discovered, the CIB (cryptochrome-interacting basic-helix-loop-helix 1)-dependent CRY2 regulation of transcription and the SPA1/COP1 (SUPPRESSOR OF PHYA /CONSTITUTIVELY PHOTOMORPHOGENIC1)-dependent cryptochrome regulation of proteolysis. Both cryptochrome signaling pathways rely on blue light-dependent interactions between the cryptochrome photoreceptor and its signaling proteins to modulate gene expression changes in response to blue light, leading to altered developmental programs of plants.
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