Atrazine accumulation and toxic responses in maize Zea mays

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	Atrazine accumulation and toxic responses in maize Zea mays
其他题名	Atrazine accumulation and toxic responses in maize Zea mays
	Li Xiuying 1; Wu Tong 1; Huang Honglin 1; Zhang Shuzhen 1
	2012
发表期刊	JOURNAL OF ENVIRONMENTAL SCIENCES
ISSN	1001-0742
卷号	24 期号:2 页码:203-208
摘要	Atrazine accumulation, oxidative stress, and defense response in maize seedlings exposed to extraneous atrazine were studied. Accumulation of atrazine in maize increased with increasing exposure concentration. The abscisic acid (ABA) content was positively correlated with the atrazine concentrations in maize roots and shoots (p < 0.05). Hydroxyl radical (center dot OH) in maize was determined in vivo with electron paramagnetic resonance spectroscopy. Its intensity was positively correlated with atrazine concentration in roots and shoots (p < 0.05), and higher level of (OH)-O-center dot generated in roots than in shoots corresponded to the major accumulation of atrazine in roots. Superoxide dismutase, peroxidase and catalase in roots were up-regulated by atrazine exposure at 1 mg/L compared to the control and malondialdehyde content in roots was enhanced when atrazine exposure concentration reached 10 mg/L. These results suggested the exposure and accumulation of atrazine caused oxidative toxicity and antioxidant response in maize.
其他摘要	Atrazine accumulation,oxidative stress,and defense response in maize seedlings exposed to extraneous atrazine were studied.Accumulation of atrazine in maize increased with increasing exposure concentration.The abscisic acid(ABA) content was positively correlated with the atrazine concentrations in maize roots and shoots(p < 0.05).Hydroxyl radical(.OH) in maize was determined in vivo with electron paramagnetic resonance spectroscopy.Its intensity was positively correlated with atrazine concentration in roots and shoots(p < 0.05),and higher level of.OH generated in roots than in shoots corresponded to the major accumulation of atrazine in roots.Superoxide dismutase,peroxidase and catalase in roots were up-regulated by atrazine exposure at 1 mg/L compared to the control and malondialdehyde content in roots was enhanced when atrazine exposure concentration reached 10 mg/L.These results suggested the exposure and accumulation of atrazine caused oxidative toxicity and antioxidant response in maize.
关键词	HYDROXYL RADICAL GENERATION WHEAT TRITICUM-AESTIVUM SUPEROXIDE-DISMUTASE ANTIOXIDANT ENZYMES CARASSIUS-AURATUS TRANSGENIC PLANTS OXIDATIVE STRESS ACTIVE OXYGEN ABSCISIC-ACID TOLERANCE atrazine maize (Zea mays) reactive oxygen species antioxidant enzyme abscisic acid
收录类别	CSCD
语种	英语
资助项目	[National Basic Research Program of China] ; [National Natural Science Foundation of China]
CSCD记录号	CSCD:4460789
引用统计	被引频次：3[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/158017
专题	中国科学院金属研究所
作者单位	1.中国科学院 2.中国科学院金属研究所
推荐引用方式 GB/T 7714	Li Xiuying,Wu Tong,Huang Honglin,et al. Atrazine accumulation and toxic responses in maize Zea mays[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2012,24(2):203-208.
APA	Li Xiuying,Wu Tong,Huang Honglin,&Zhang Shuzhen.(2012).Atrazine accumulation and toxic responses in maize Zea mays.JOURNAL OF ENVIRONMENTAL SCIENCES,24(2),203-208.
MLA	Li Xiuying,et al."Atrazine accumulation and toxic responses in maize Zea mays".JOURNAL OF ENVIRONMENTAL SCIENCES 24.2(2012):203-208.