Effects of exogenous hydrogen sulfide on the ascorbate and glutathione metabolism in wheat seedlings leaves under water stress

被引：93

作者：

Shan, Chang-juan ^{[1
]}

Zhang, Sheng-li ^{[1
]}

Li, Dong-fang ^{[1
]}

Zhao, Yuan-zeng ^{[1
]}

Tian, Xue-liang ^{[1
]}

Zhao, Xin-liang ^{[1
]}

Wu, Ying-xia ^{[1
]}

Wei, Xiu-ying ^{[1
]}

Liu, Run-qiang ^{[1
]}

机构：

[1] Henan Inst Sci & Technol, Xinxiang 453003, Henan, Peoples R China

来源：

ACTA PHYSIOLOGIAE PLANTARUM | 2011年 / 33卷 / 06期

关键词：

Water stress; Hydrogen sulfide; Ascorbate; Glutathione; Wheat; INDUCED ANTIOXIDANT DEFENSE; OXIDATIVE STRESS; NITRIC-OXIDE; SEED-GERMINATION; NADPH OXIDASE; OXYGEN; ACID; GENERATION; SPINACH; ENZYMES;

D O I：

10.1007/s11738-011-0746-4

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

This study investigated the effects of exogenous hydrogen sulfide on the ascorbate and glutathione metabolism in wheat seedlings leaves under water stress. The results showed that pretreatment with sodium hydrosulfide (NaHS), hydrogen sulfide donor, increased the activities of ascorbate peroxidase, glutathione reductase, dehydroascorbate reductase and gamma-glutamylcysteine synthetase, and the contents of reduced ascorbic acid, reduced glutathione, total ascorbate and total glutathione under water stress, compared to control and water stress without NaHS. Meanwhile, pretreatment with NaHS decreased the malondialdehyde content and electrolyte leakage induced by water stress in plants, compared to control and water stress without NaHS. Our results suggested that exogenous hydrogen sulfide alleviated oxidative damage by regulating the ascorbate and glutathione metabolism in wheat seedlings under water stress.

引用

页码：2533 / 2540

页数：8

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