Document Detail


The action mechanisms of plant cryptochromes.
MedLine Citation:
PMID:  21983106     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cryptochromes (CRY) are blue-light receptors that mediate various light responses in plants. The photoexcited CRY molecules undergo several biophysical and biochemical changes, including electron transfer, phosphorylation and ubiquitination, resulting in conformational changes to propagate light signals. Two modes of CRY signal transduction have recently been discovered: the cryptochrome-interacting basic-helix-loop-helix 1 (CIB)-dependent CRY2 regulation of transcription; and the SUPPRESSOR OF PHYA1/CONSTITUTIVELY PHOTOMORPHOGENIC1 (SPA1/COP1)-dependent cryptochrome regulation of proteolysis. Both CRY signaling pathways rely on blue light-dependent interactions between the CRY photoreceptor and its signaling proteins to modulate gene expression changes in response to blue light, leading to altered developmental programs in plants.
Authors:
Hongtao Liu; Bin Liu; Chenxi Zhao; Michael Pepper; Chentao Lin
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Review     Date:  2011-10-07
Journal Detail:
Title:  Trends in plant science     Volume:  16     ISSN:  1878-4372     ISO Abbreviation:  Trends Plant Sci.     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-05     Completed Date:  2012-03-19     Revised Date:  2014-09-16    
Medline Journal Info:
Nlm Unique ID:  9890299     Medline TA:  Trends Plant Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  684-91     Citation Subset:  IM    
Copyright Information:
Copyright © 2011. Published by Elsevier Ltd.
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MeSH Terms
Descriptor/Qualifier:
Arabidopsis / metabolism,  physiology*
Cryptochromes / metabolism,  physiology*
Photoreceptors, Plant / physiology
Signal Transduction
Grant Support
ID/Acronym/Agency:
GM56265/GM/NIGMS NIH HHS; R01 GM056265/GM/NIGMS NIH HHS; R01 GM056265-11/GM/NIGMS NIH HHS
Chemical
Reg. No./Substance:
0/Cryptochromes; 0/Photoreceptors, Plant
Comments/Corrections

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