Low concentration of exogenous abscisic acid increases lead tolerance in rice seedlings

被引：25
|
作者：
Zhao, L. [1 ,2 ]
Xiong, J. [1 ,3 ]
Li, L. P. [1 ]
Zhu, C. [1 ]
机构：
[1] Zhejiang Univ, Coll Life Sci, State Key Lab Plant Physiol & Biochem, Hangzhou 310058, Zhejiang, Peoples R China
[2] Lishui Univ, Coll Chem & Life Sci, Lishui 323000, Peoples R China
[3] China Natl Rice Res Inst, Hangzhou 310006, Zhejiang, Peoples R China
来源：
BIOLOGIA PLANTARUM | 2009年 / 53卷 / 04期
关键词：
APX; CAT; MDA; Oryza sativa L; SOD; transpiration rate; SUPEROXIDE-DISMUTASE; LIPID-PEROXIDATION; OXIDATIVE STRESS; CADMIUM TOXICITY; GENE-EXPRESSION; RESISTANCE; PHYSIOLOGY; MECHANISM; CALCIUM; ENZYMES;
D O I：
10.1007/s10535-009-0132-x
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The effects of exogenous abscisic acid (ABA) on lead tolerance in rice (Oryza sativa L.) seedlings were investigated. Pre-treatment with 0.1 g m(3) ABA for 2 d restricted amount of Pb translocated from roots to shoots, decreased malondialdehyde and H2O2 contents in leaves, and alleviated Pb-induced decrease in plant growth and leaf chlorophyll content. Further, ABA pre-treatment adjusted leaf antioxidative enzyme activities (increased ascorbate peroxidase and catalase activities while decreased superoxide dismutase activity) and so alleviated oxidative stress.
引用
收藏
页码：728 / 732
页数：5
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