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Atrazine accumulation and toxic responses in maize Zea mays
Alternative TitleAtrazine accumulation and toxic responses in maize Zea mays
Li Xiuying1; Wu Tong1; Huang Honglin1; Zhang Shuzhen1
2012
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES
ISSN1001-0742
Volume24Issue:2Pages:203-208
AbstractAtrazine 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.
Other AbstractAtrazine 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.
KeywordHYDROXYL 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
Indexed ByCSCD
Language英语
Funding Project[National Basic Research Program of China] ; [National Natural Science Foundation of China]
CSCD IDCSCD:4460789
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/158017
Collection中国科学院金属研究所
Affiliation1.中国科学院
2.中国科学院金属研究所
Recommended Citation
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.
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