Reduction of arsenic oxidative toxicity by phosphate is not related to arsenate reductase activity in wheat plants

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 土壤环境科学实验室

	Reduction of arsenic oxidative toxicity by phosphate is not related to arsenate reductase activity in wheat plants
	Guo, Bin; Duan, Gui-Lan; Meng, Xiang-Yan; Wang, Li-Hong
刊名	JOURNAL OF PLANT NUTRITION
	2007
卷号	30 期号:1 页码:2105-2117
关键词	Arsenate Arsenate Reductase Oxidative Stress Phosphate
英文摘要	Arsenic toxicity to plants is thought to be induced through the generation of reactive oxygen species. The response of arsenate reductase (AR) activity as well as the oxidative stress to the interaction of arsenate and phosphate in wheat seedlings was studied in this experiment. The results showed that AR activity increased by 108% with arsenate exposure under P-deficient condition and by 130% under P-sufficient condition; but AR activity showed no significant response to P treatment. Hydrogen peroxide (H2O2) and malondialdehyde (MDA) concentrations increased significantly under arsenate exposure, especially in P-deficient plants, increasing by 180% for H2O2 and 51 % for MDA. Superoxide dismutase (SOD) and peroxidase (POD) activity decreased significantly; catalase (CAT) activity decreased under P-deficient condition and increased under P-sufficient condition. Glutathione (GSH), Ascorbate (AsA) and Non-protein thiols (NPT) concentrations all increased when exposed to arsenate under P-deficient condition. Arsenate exposure induced oxidative stress in wheat and P-deprivation increased the damage of oxidative stress.
WOS记录号	WOS:000252091100038
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/22641]
专题	生态环境研究中心_土壤环境科学实验室
推荐引用方式 GB/T 7714	Guo, Bin,Duan, Gui-Lan,Meng, Xiang-Yan,et al. Reduction of arsenic oxidative toxicity by phosphate is not related to arsenate reductase activity in wheat plants[J]. JOURNAL OF PLANT NUTRITION,2007,30(1):2105-2117.
APA	Guo, Bin,Duan, Gui-Lan,Meng, Xiang-Yan,&Wang, Li-Hong.(2007).Reduction of arsenic oxidative toxicity by phosphate is not related to arsenate reductase activity in wheat plants.JOURNAL OF PLANT NUTRITION,30(1),2105-2117.
MLA	Guo, Bin,et al."Reduction of arsenic oxidative toxicity by phosphate is not related to arsenate reductase activity in wheat plants".JOURNAL OF PLANT NUTRITION 30.1(2007):2105-2117.