| Atrazine accumulation and toxic responses in maize Zea mays | |
| Alternative Title | Atrazine accumulation and toxic responses in maize Zea mays |
| Li Xiuying1; Wu Tong1; Huang Honglin1; Zhang Shuzhen1 | |
| 2012 | |
| Source Publication | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| ISSN | 1001-0742 |
| Volume | 24Issue:2Pages:203-208 |
| Abstract | 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. |
| Other Abstract | 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. |
| Keyword | 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 |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Basic Research Program of China] ; [National Natural Science Foundation of China] |
| CSCD ID | CSCD:4460789 |
| Citation statistics |
Cited Times:3[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/158017 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment