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Salt stress-induced cell reprogramming, cell fate switch and adaptive plasticity during root hair development in Arabidopsis.
MedLine Citation:
PMID:  19513233     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Developmental plasticity defines an adaptive mechanism, which plays a fundamental role in plant development and survival. How intrinsic or extrinsic factors are integrated to specify cell fates and subsequent organ and body building of a plant is still poorly understood. By studying developmental plasticity of Arabidopsis root hair in response to salt stress, we have begun to understand more about the basis of cellular plasticity. This paper summarizes our recent paper in which it described salt stress induced plasticity of root epidermis and root hair development in Arabidopsis. Analysis of gene expression of the homeobox transcription factor GLABRA2 (GL2), which determines hair/non-hair cell fate, showed that salt stress modulates root epidermal cell proliferation and changes the cell fate decisions. Furthermore, by analyzing the salt overly sensitive (sos) mutants, we showed that salt-induced root hair plastic response is caused by ion disequilibrium and it appears to be adaptive mechanism. Based on the most recent discoveries, we propose here that chromatin remodeling and epigenetic control may be the basis for cell fate changes and the ultimately adaptive plasticity in response to transient changes of environmental conditions.
Authors:
Y Wang; X Li
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Plant signaling & behavior     Volume:  3     ISSN:  1559-2316     ISO Abbreviation:  Plant Signal Behav     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2009-06-10     Completed Date:  2012-10-02     Revised Date:  2013-05-23    
Medline Journal Info:
Nlm Unique ID:  101291431     Medline TA:  Plant Signal Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  436-8     Citation Subset:  -    
Affiliation:
The State Key Laboratory of Plant Cell & Chromosome Engineering; Center of Agricultural Resources; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Shijiazhuang, Hebei China.
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