The involvement of the antioxidant system in protection of desert cyanobacterium Nostoc sp against UV-B radiation and the effects of exogenous antioxidants
文献类型：期刊论文
| 作者 | Wang, Gaohong; Chen, Kun; Chen, Lanzhou; Hu, Chunxiang; Zhang, Delu; Liu, Yongding |
| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2008 |
| 卷号 | 69期号:1页码:150-157 |
| 关键词 | antioxidant system exogenous antioxidant Nostoc sp. photosynthesis UV-B radiation |
| ISSN号 | 0147-6513 |
| 通讯作者 | Liu, YD, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China |
| 中文摘要 | In this study, we found that UV-B radiation decreased photosynthetic activity and boosted lipid peroxidation of desert Nostoc sp., and exogenous chemicals (ascorbate acid (ASC), N-acetylcysteine (NAC), and sodium nitroprusside (SNP)) had obvious protective effects on photosynthesis and membranes under UV-B radiation. High-concentration SNP boosted the activities of antioxidant enzymes, but low-concentration SNP reduced the activities of antioxidant enzymes. Both NAC and ASC treatments of cells decreased activities of antioxidant enzymes. The results suggested that those chemicals possibly had different mechanisms of protection of algae cells against UV-B radiation. SNP might play double roles as a signal molecule in the formation of algae cell protection of Photosystem 11 under UV-B radiation and as a (reactive oxygen species) scavenger, while NAC and ASC might function as antioxidant reagents or precursors of other antioxidant molecules, which could protect cells directly against ROS initiated by UV-B radiation. (c) 2006 Elsevier Inc. All rights reserved. |
| 英文摘要 | In this study, we found that UV-B radiation decreased photosynthetic activity and boosted lipid peroxidation of desert Nostoc sp., and exogenous chemicals (ascorbate acid (ASC), N-acetylcysteine (NAC), and sodium nitroprusside (SNP)) had obvious protective effects on photosynthesis and membranes under UV-B radiation. High-concentration SNP boosted the activities of antioxidant enzymes, but low-concentration SNP reduced the activities of antioxidant enzymes. Both NAC and ASC treatments of cells decreased activities of antioxidant enzymes. The results suggested that those chemicals possibly had different mechanisms of protection of algae cells against UV-B radiation. SNP might play double roles as a signal molecule in the formation of algae cell protection of Photosystem 11 under UV-B radiation and as a (reactive oxygen species) scavenger, while NAC and ASC might function as antioxidant reagents or precursors of other antioxidant molecules, which could protect cells directly against ROS initiated by UV-B radiation. (c) 2006 Elsevier Inc. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Environmental Sciences; Toxicology |
| 类目[WOS] | Environmental Sciences ; Toxicology |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Toxicology |
| 关键词[WOS] | ALLEVIATES OXIDATIVE DAMAGE ; ACETYL-L-CYSTEINE ; NITRIC-OXIDE ; ULTRAVIOLET-RADIATION ; ASCORBATE PEROXIDASE ; RICE LEAVES ; ANABAENA SP ; STRESS ; CHLORELLA ; RESPONSES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000252304800018 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/8312]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Gaohong,Chen, Kun,Chen, Lanzhou,et al. The involvement of the antioxidant system in protection of desert cyanobacterium Nostoc sp against UV-B radiation and the effects of exogenous antioxidants[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2008,69(1):150-157. |
| APA | Wang, Gaohong,Chen, Kun,Chen, Lanzhou,Hu, Chunxiang,Zhang, Delu,&Liu, Yongding.(2008).The involvement of the antioxidant system in protection of desert cyanobacterium Nostoc sp against UV-B radiation and the effects of exogenous antioxidants.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,69(1),150-157. |
| MLA | Wang, Gaohong,et al."The involvement of the antioxidant system in protection of desert cyanobacterium Nostoc sp against UV-B radiation and the effects of exogenous antioxidants".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 69.1(2008):150-157. |
入库方式： OAI收割
来源：水生生物研究所
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