Document Detail


Gama-aminobutyric acid accumulation in Elsholtzia splendens in response to copper toxicity.
MedLine Citation:
PMID:  15633244     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A solution with different Cu supply levels was cultured to investigate gama-aminobutyric acid (GABA) accumulation in Elsholtzia splendens, a native Chinese Cu-tolerant and accumulating plant species. Increasing Cu from 0.25 to 500 micromol/L significantly enhanced levels of GABA and histidine (His), but considerably decreased levels of aspartate (Asp) and glutamate (Glu) in the leaves. The leaf Asp level negatively correlated with leaf Cu level, while leaf GABA level positively correlated with leaf Cu level. The leaf Glu level negatively correlated with leaf GABA level in Elsholtzia splendens. The depletion of leaf Glu may be related to the enhanced synthesis of leaf GABA under Cu stress.
Authors:
Xiao-e Yang; Hong-yun Peng; Sheng-ke Tian
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Publication Detail:
Type:  Letter; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of Zhejiang University. Science. B     Volume:  6     ISSN:  1673-1581     ISO Abbreviation:  J Zhejiang Univ Sci B     Publication Date:  2005 Feb 
Date Detail:
Created Date:  2005-01-05     Completed Date:  2005-05-31     Revised Date:  2010-09-20    
Medline Journal Info:
Nlm Unique ID:  101236535     Medline TA:  J Zhejiang Univ Sci B     Country:  China    
Other Details:
Languages:  eng     Pagination:  96-9     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Copper / toxicity*
Dose-Response Relationship, Drug
Drug Tolerance / physiology*
Gene Expression Regulation / drug effects
Lamiaceae / drug effects*,  metabolism*
Plant Leaves / drug effects*,  metabolism*
gamma-Aminobutyric Acid / metabolism*
Chemical
Reg. No./Substance:
56-12-2/gamma-Aminobutyric Acid; 7440-50-8/Copper
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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