| Photosynthetic adaptation mechanism of Microcystis (Cyanophyceae) related to changes of colony size in a eutrophic lake | |
| Wang, Zhicong; Li, Dunhai; Cao, Xiuyun; Song, Chunlei; Zhou, Yiyong; Zhou, YY (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China. | |
| 2014 | |
| Source Publication | PHYCOLOGIA
 |
| ISSN | 0031-8884 |
| Volume | 53Issue:6Pages:552-560 |
| Abstract | Microcystis blooms occur frequently in eutrophic lakes, and they are composed of many different-sized colonies. Many studies have addressed the competitive advantage of colony size, e.g. colony buoyancy regulation mechanism, low nutrient stress tolerance, low irradiance stress; however, studies are lacking for growth strategies of different-sized Microcystis colonies responding to photosynthetic regulation. This study compared photosynthetic activities and photosynthetic pigment composition of different-sized Microcystis. The results showed that the photosynthetic activity caused a V-shaped curve as colony size increased, i.e. medium-sized colonies (125-400 mu m) had the lowest photosynthetic activity. The higher photosynthetic activity of small colonies (<125 mu m) was probably caused by the higher light-harvesting efficiency of phycobilisomes (PBS) and a relatively low nonphotochemical quenching (qN). The high photosynthesis of large colonies (>400 mu m) was attributed to the high efficiency of energy transition of the electron transport chains in photosystem II. Also, large colonies tolerated high irradiance stress because of their high qN, which was related to high cell quotas of PBS. All these results suggested that both small and large colonies had their own ecological adaptation strategies when they were suspended at different water layers, providing an explanation for how Microcystis survives adverse natural conditions, grows rapidly and forms serious surface blooms. |
| Subtype | Article |
| Keyword | Algal Colony Sizes Cyanobacterial Bloom Eutrophic Lake Microcystis Photosynthesis |
| Department | [Wang, Zhicong ; Li, Dunhai ; Cao, Xiuyun ; Song, Chunlei ; Zhou, Yiyong] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| DOI | 10.2216/14-020.1 |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Plant Sciences ; Marine & Freshwater Biology |
| WOS Subject | Plant Sciences ; Marine & Freshwater Biology |
| WOS ID | WOS:000347965000003 |
| WOS Keyword | BLOOM-FORMING MICROCYSTIS ; RESOLVED FLUORESCENCE SPECTROSCOPY ; CHLOROPHYLL FLUORESCENCE ; ARTHROSPIRA-PLATENSIS ; LIGHT CONDITIONS ; DECLINE PROCESS ; PHOTOSYSTEM-II ; CYANOBACTERIA ; PHOSPHORUS ; CHINA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/342005/23956 |
| Collection | 水环境工程研究中心_期刊论文 |
| Corresponding Author | Zhou, YY (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China. |
| Affiliation | Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Zhicong,Li, Dunhai,Cao, Xiuyun,et al. Photosynthetic adaptation mechanism of Microcystis (Cyanophyceae) related to changes of colony size in a eutrophic lake[J]. PHYCOLOGIA,2014,53(6):552-560. |
| APA | Wang, Zhicong,Li, Dunhai,Cao, Xiuyun,Song, Chunlei,Zhou, Yiyong,&Zhou, YY .(2014).Photosynthetic adaptation mechanism of Microcystis (Cyanophyceae) related to changes of colony size in a eutrophic lake.PHYCOLOGIA,53(6),552-560. |
| MLA | Wang, Zhicong,et al."Photosynthetic adaptation mechanism of Microcystis (Cyanophyceae) related to changes of colony size in a eutrophic lake".PHYCOLOGIA 53.6(2014):552-560. |
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| Photosynthetic adapt（1143KB） | 开放获取 | CC BY-NC-SA | View Application Full Text | |||
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