Document Detail


Blue light regulated shade avoidance.
MedLine Citation:
PMID:  22499181     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Most plants grow in dense vegetation with the risk of being out-competed by neighboring plants. These neighbors can be detected not only through the depletion in light quantity that they cause, but also through the change in light quality, which plants perceive using specific photoreceptors. Both the reduction of the red:far-red ratio and the depletion of blue light are signals that induce a set of phenotypic traits, such as shoot elongation and leaf hyponasty, which increase the likelihood of light capture in dense plant stands. This set of phenotypic responses are part of the so called shade avoidance syndrome (SAS). This addendum discusses recent findings on the regulation of the SAS of Arabidopsis thaliana upon blue light depletion. Keller et al. and Keuskamp et al. show that the low blue light attenuation induced shade avoidance response of seedling and rosette-stage A. thaliana plants differ in their hormonal regulation. These studies also show there is a regulatory overlap with the R:FR-regulated SAS.
Authors:
Diederik H Keuskamp; Mercedes M Keller; Carlos L Ballaré; Ronald Pierik
Publication Detail:
Type:  Journal Article; Review     Date:  2012-04-01
Journal Detail:
Title:  Plant signaling & behavior     Volume:  7     ISSN:  1559-2324     ISO Abbreviation:  Plant Signal Behav     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-09-17     Completed Date:  2013-02-07     Revised Date:  2013-06-26    
Medline Journal Info:
Nlm Unique ID:  101291431     Medline TA:  Plant Signal Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  514-7     Citation Subset:  IM    
Affiliation:
Plant Ecophysiology, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological / drug effects,  radiation effects*
Arabidopsis / drug effects,  physiology*,  radiation effects*
Color
Light*
Photoreceptors, Plant / metabolism
Plant Growth Regulators / pharmacology
Chemical
Reg. No./Substance:
0/Photoreceptors, Plant; 0/Plant Growth Regulators
Comments/Corrections

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