Effects of exogenous nitric oxide donor on antioxidant metabolism in wheat leaves under aluminum stress

被引：0
作者：
H. Zhang
Y. H. Li
L. Y. Hu
S. H. Wang
F. Q. Zhang
K. D. Hu
机构：
[1] Hefei University of Technology,School of Biotechnology and Food Engineering
[2] Anhui Science and Technology University,Life Science College
[3] Hexi University,Department of Biology
来源：
Russian Journal of Plant Physiology | 2008年 / 55卷
关键词：
Triticum aestivum; aluminum stress; antioxidant enzymes; chlorophyll; nitric oxide;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
With the enhancement of aluminum stress, the content of chlorophyll in wheat seedlings (Triticum aestivum L.) decreased dramatically. At 0.2 mM AlCl3, the chlorophyll content halved. The aluminum-induced decrease in chlorophyll content could be alleviated by exogenous nitric oxide donor, sodium nitroprusside (SNP) in a dose-dependent manner. Treatment with SNP dramatically promoted the activities of superoxide dismutase, catalase, ascorbate peroxidase and increased the proline content, whereas it decreased hydrogen peroxide and malondialdehyde and maintained the level of soluble protein as compared with water controls. Therefore, NO donor enhanced the antioxidant capacity in wheat seedlings under aluminum stress.
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页码：469 / 474
页数：5
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