Allelopathic effects of pyrogallic acid secreted by submerged macrophytes on Microcystis aeruginosa: Role of ROS generation
文献类型：期刊论文
| 作者 | Sun, X. M.; Lu, Z. Y.; Liu, B. Y.; Zhou, Q. H.; Zhang, Y. Y.; Wu, Z. B. |
| 刊名 | ALLELOPATHY JOURNAL
 |
| 出版日期 | 2014 |
| 卷号 | 33期号:1页码:121-129 |
| 关键词 | Allelopathy hydrogen peroxide hydroxyl radical oxidative stress redox cycling superoxide anion superoxide dismutase |
| ISSN号 | 0971-4693 |
| 通讯作者 | Liu, BY (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China. |
| 中文摘要 | We investigated the intracellular O-2(center dot-), H2O2 and OH center dot generation induced by PA in Microcystis aeruginosa using two targeted fluorescent probes and also determining the SOD activity. We found that PA significantly induces the dose-dependent generation of O-2(center dot-) and consequently H2O2, OH center dot. Under dark condition, when exposed to 50 mg L-1 PA for 8 h, the O-2(center dot-) and H2O2/OH center dot levels in M. aeruginosa were 2.00 and 1.91 folds of the respective control. The light enhanced the O-2(center dot-) formation. The low concentration of PA (5 mg L-1) activated the SOD, but was inhibited gradually with increase in PA concentrations, especially under light condition. The results of this study indicated the significant generation of O-2(center dot-) as precursor of H2O2 and OH center dot, which provided original and direct evidence for the oxidative stress of PA to M. aeruginosa. The results also suggested that the futile redox cycling of PA was the main source of excessive intracellular Or and consequent H2O2 and OH center dot, which induced the allelopathic inhibition of M aeruginosa. |
| 英文摘要 | We investigated the intracellular O-2(center dot-), H2O2 and OH center dot generation induced by PA in Microcystis aeruginosa using two targeted fluorescent probes and also determining the SOD activity. We found that PA significantly induces the dose-dependent generation of O-2(center dot-) and consequently H2O2, OH center dot. Under dark condition, when exposed to 50 mg L-1 PA for 8 h, the O-2(center dot-) and H2O2/OH center dot levels in M. aeruginosa were 2.00 and 1.91 folds of the respective control. The light enhanced the O-2(center dot-) formation. The low concentration of PA (5 mg L-1) activated the SOD, but was inhibited gradually with increase in PA concentrations, especially under light condition. The results of this study indicated the significant generation of O-2(center dot-) as precursor of H2O2 and OH center dot, which provided original and direct evidence for the oxidative stress of PA to M. aeruginosa. The results also suggested that the futile redox cycling of PA was the main source of excessive intracellular Or and consequent H2O2 and OH center dot, which induced the allelopathic inhibition of M aeruginosa. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Agronomy |
| 研究领域[WOS] | Agriculture |
| 关键词[WOS] | PLANT-PRODUCING PHENOLS ; BLUE-GREEN-ALGAE ; (-)-EPIGALLOCATECHIN GALLATE ; GROWTH-INHIBITION ; CYANOBACTERIA ; ALLELOCHEMICALS ; PHYTOPLANKTON ; MECHANISMS ; APOPTOSIS ; CELLS |
| 收录类别 | SCI |
| 资助信息 | National Nature Science Foundation of China [51178452, 50909091, 31123001]; Major Science and Technology Program for Water Pollution Control and Treatment of China 12th Five-Year Plan [2012ZX07101007-005]; State Key Laboratory of Freshwater Ecology and Biotechnology Program [2013FB20] |
| 语种 | 英语 |
| WOS记录号 | WOS:000331592400010 |
| 公开日期 | 2014-08-08 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/20072]  |
| 专题 | 水生生物研究所_水环境工程研究中心_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 | Sun, X. M.,Lu, Z. Y.,Liu, B. Y.,et al. Allelopathic effects of pyrogallic acid secreted by submerged macrophytes on Microcystis aeruginosa: Role of ROS generation[J]. ALLELOPATHY JOURNAL,2014,33(1):121-129. |
| APA | Sun, X. M.,Lu, Z. Y.,Liu, B. Y.,Zhou, Q. H.,Zhang, Y. Y.,&Wu, Z. B..(2014).Allelopathic effects of pyrogallic acid secreted by submerged macrophytes on Microcystis aeruginosa: Role of ROS generation.ALLELOPATHY JOURNAL,33(1),121-129. |
| MLA | Sun, X. M.,et al."Allelopathic effects of pyrogallic acid secreted by submerged macrophytes on Microcystis aeruginosa: Role of ROS generation".ALLELOPATHY JOURNAL 33.1(2014):121-129. |
入库方式： OAI收割
来源：水生生物研究所
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