Differential responses of different phenotypes of Microcystis (Cyanophyceae) to UV-B radiation
文献类型：期刊论文
| 作者 | Qin, Hongjie1,2; Li, Shuangshuang1,3; Li, Dunhai1 |
| 刊名 | PHYCOLOGIA
 |
| 出版日期 | 2015 |
| 卷号 | 54期号:2页码:118-129 |
| 关键词 | Chlorophyll fluorescence Cyanobacteria Migration rate Phenotypic plasticity Photosynthesis UV-B radiation |
| ISSN号 | 0031-8884 |
| 通讯作者 | Li, DH (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China. |
| 英文摘要 | Microcystis can be single celled or colonial under certain conditions, thereby possessing phenotypic plasticity. Differential physiological and biochemical responses of colonial Microcystis aeruginosa FACHB 939 and its single-celled strain to ultraviolet type B radiation (UV-B) exposure were investigated. Results suggested that UV-B exposure exerted a lower inhibitory effect on the growth of colonial Microcystis, and that the single-celled strain had higher ability to recover after exposure to UV-B. Carotenoids/chlorophyll a (Chl a) ratios were increased, whereas phycobilisome/Chl a ratios were decreased by UV-B exposure. The photosynthetic activities of both phenotypes were inhibited, but colonial Microcystis showed higher tolerance and recovery ability to UV-B exposure. The sheath and shading effect, as well as changes of pigments of colonial Microcystis, were believed to play roles in resisting UV-B exposure. UV-B radiation can increase the sinking rate of the single-celled Microcystis and cause colonial Microcystis to shift from a floating to a sinking state. The observed reduction of colony size and increase in total carbohydrate content induced by UV-B radiation presumably caused the decrease in buoyancy in Microcystis. However, the increase in sinking rate is also an important way for Microcystis to avoid damage inflicted by UV-B radiation. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Plant Sciences ; Marine & Freshwater Biology |
| 研究领域[WOS] | Plant Sciences ; Marine & Freshwater Biology |
| 关键词[WOS] | SOLAR ULTRAVIOLET-RADIATION ; BLOOM-FORMING MICROCYSTIS ; BUOYANCY REGULATION ; CYANOBACTERIUM MICROCYSTIS ; VERTICAL MIGRATION ; PHYSIOLOGICAL-CHANGES ; AERUGINOSA KUTZ ; FLOS-AQUAE ; GROWTH ; LIGHT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000355114900003 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/23934]  |
| 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 | 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China 2.Jiangsu Acad Agr Sci, Inst Agr Resource & Environm, Nanjing 210014, Jiangsu, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin, Hongjie,Li, Shuangshuang,Li, Dunhai. Differential responses of different phenotypes of Microcystis (Cyanophyceae) to UV-B radiation[J]. PHYCOLOGIA,2015,54(2):118-129. |
| APA | Qin, Hongjie,Li, Shuangshuang,&Li, Dunhai.(2015).Differential responses of different phenotypes of Microcystis (Cyanophyceae) to UV-B radiation.PHYCOLOGIA,54(2),118-129. |
| MLA | Qin, Hongjie,et al."Differential responses of different phenotypes of Microcystis (Cyanophyceae) to UV-B radiation".PHYCOLOGIA 54.2(2015):118-129. |
入库方式： OAI收割
来源：水生生物研究所
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