期刊
CRITICAL REVIEWS IN PLANT SCIENCES
卷 36, 期 2, 页码 89-115出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/07352689.2017.1348725
关键词
blue light photoreceptor; cryptochromes; flowering; light signaling; phytohormones; photomorphogenesis; photoreceptors
资金
- Department of Biotechnology, Government of India [BT/AGIII/CARI/01/2012]
- CSIR
- SERB
Analogous to the opsin-based receptors in animals, plants contain a diverse and elaborate set of photoreceptors to perceive a much wider spectrum of light and adapt to varying light conditions. Cryptochromes (CRYs), the blue/UV-A light sensing receptors, represent one such class of photoreceptors found ubiquitously in plants. Although structurally similar to DNA photolyases which could repair UV-induced DNA damage, photoactivated CRYs, instead, initiate signal transduction pathways, which lead to gene expression changes and eventually more overt photomorphogenic responses. Apart from the well-established roles of CRYs in regulating seedling de-etiolation, flowering time, and circadian clock, recent reports have highlighted their roles in controlling other aspects of plant development as well. This review attempts to describe the novel/atypical roles of CRYs that have emerged in the past few years, and also present an account of the various signaling components involved in CRY signal transduction pathway.
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