Effects of laser irradiation on a bloom forming cyanobacterium Microcystis aeruginosa
文献类型：期刊论文
| 作者 | Li, Tiancui1,3; Bi, Yonghong2; Liu, Jiantong1; Wu, Chenxi1 |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 23期号:20页码:20297-20306 |
| 关键词 | Laser irradiation Microcystis aeruginosa Growth inhibition Photosynthetic activity Antioxidant enzyme Microcystin |
| ISSN号 | 0944-1344 |
| 英文摘要 | Effects of laser irradiation on photosystem II (PS II) photochemical efficiencies, growth, and other physiological responses of Microcystis aeruginosa were investigated in this study. Results indicate that laser irradiation (wavelengths 405, 450, 532, and 650 nm) could effectively inhibit maximal PS II quantum yield (Fv/Fm) and maximal electron transport rates (ETRmax) of M. aeruginosa, while saturating light levels (E-k) of M. aeruginosa did not change significantly. Among the four tested wavelengths, 650 nm laser (red light) showed the highest inhibitory efficiency. Following 650 nm laser irradiation, the growth of M. aeruginosa was significantly suppressed, and contents of cellular photosynthetic pigments (chlorophyll a, carotenoid, phycocyanin, and allophycocyanin) decreased as irradiation dose increased. Meanwhile, laser irradiation enhanced the enzyme activities of superoxide dismutase (SOD) and peroxidase (POD) in M. aeruginosa cells. Lower irradiation doses did not change the intracellular microcystin contents, but higher dose irradiation (> 1284 J cm(-2)) caused the release of microcystin into the culture medium. Transmission electron microscope examination showed that the ultrastructure of M. aeruginosa cells was destructed progressively following laser irradiation. Effects of laser irradiation on M. aeruginosa may be a combination of photochemical, electromagnetic, and thermal effects. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | HE-NE-LASER ; ALGAL BLOOMS ; B RADIATION ; GROWTH ; PROTECTION ; REMOVAL ; LIGHT ; WATER ; PHOTOSYNTHESIS ; DEGRADATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000387599100022 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/28678]  |
| 专题 | 水生生物研究所_其他_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu South Rd 7, Wuhan 43001284, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Tiancui,Bi, Yonghong,Liu, Jiantong,et al. Effects of laser irradiation on a bloom forming cyanobacterium Microcystis aeruginosa[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2016,23(20):20297-20306. |
| APA | Li, Tiancui,Bi, Yonghong,Liu, Jiantong,&Wu, Chenxi.(2016).Effects of laser irradiation on a bloom forming cyanobacterium Microcystis aeruginosa.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,23(20),20297-20306. |
| MLA | Li, Tiancui,et al."Effects of laser irradiation on a bloom forming cyanobacterium Microcystis aeruginosa".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 23.20(2016):20297-20306. |
入库方式： OAI收割
来源：水生生物研究所
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