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Journal of Zhejiang University SCIENCE B 2005 Vol.6 No.2 P.96-99


Gama-aminobutyric acid accumulation in Elsholtzia splendens in response to copper toxicity

Author(s):  YANG Xiao-e, PENG Hong-yun, TIAN Sheng-ke

Affiliation(s):  Ministry of Education Key Lab of Environment, Remediation and Ecosystem Health, School of Natural Resources and Environmental Science, Zhejiang University, Hangzhou 310029, China

Corresponding email(s):   xyang@zju.edu.cn, penghongyun@zju.edu.cn

Key Words:  Accumulation, Copper toxicity, Elsholtzia splendens, Gama-aminobutyric acid (GABA)

YANG Xiao-e, PENG Hong-yun, TIAN Sheng-ke. Gama-aminobutyric acid accumulation in Elsholtzia splendens in response to copper toxicity[J]. Journal of Zhejiang University Science B, 2005, 6(2): 96-99.

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%T Gama-aminobutyric acid accumulation in Elsholtzia splendens in response to copper toxicity
%A YANG Xiao-e
%A PENG Hong-yun
%A TIAN Sheng-ke
%J Journal of Zhejiang University SCIENCE B
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%N 2
%P 96-99
%@ 1673-1581
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.B0096

T1 - Gama-aminobutyric acid accumulation in Elsholtzia splendens in response to copper toxicity
A1 - YANG Xiao-e
A1 - PENG Hong-yun
A1 - TIAN Sheng-ke
J0 - Journal of Zhejiang University Science B
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SP - 96
EP - 99
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Y1 - 2005
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2005.B0096

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 μmol/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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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