Physiological variations of bloom-forming Microcystis (Cyanophyceae) related to colony size changes during blooms
文献类型：期刊论文
| 作者 | Li, Yinxia1,2; Li, Dunhai1 |
| 刊名 | PHYCOLOGIA
 |
| 出版日期 | 2012-11-01 |
| 卷号 | 51期号:6页码:599-603 |
| 关键词 | Carbohydrate Carotenoid Microcystis colonies Nitrate reductase Phycocyanin |
| ISSN号 | 0031-8884 |
| 通讯作者 | Li, DH (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China. |
| 中文摘要 | Microcystis has been intensively studied, but previous studies using laboratory cultures did not explain why colony size differed widely and frequently during natural blooms. This study was designed to unravel the mechanism for changes in biomass that accompany different sized colonies and to establish the basis for physiological variation. Monitoring colonies during blooms indicated that biomass variations for different sized colonies were associated with the frequent alteration of environment factors. Large-sized colonies had a higher carotenoid content (F = 10.74, P = 0.029) and phycocyanin content (F = 8.28. P = 0.041) during July and August; small-sized colonies had a higher total carbohydrate content (F = 9.43, P = 0.033) and higher nitrate reductase activities (P < 0.01, ANOVA). No significant difference was observed for alkaline phosphatase activities among different sized colonies (P < 0.05, ANOVA). We proposed that some key environmental factors combined with physiological variations in different sized colonies resulted in colony size succession. The selection of colony size may be an adaptive mechanism that promotes the formation, dominance and persistence of cyanobacterial blooms in eutrophic water bodies. |
| 英文摘要 | Microcystis has been intensively studied, but previous studies using laboratory cultures did not explain why colony size differed widely and frequently during natural blooms. This study was designed to unravel the mechanism for changes in biomass that accompany different sized colonies and to establish the basis for physiological variation. Monitoring colonies during blooms indicated that biomass variations for different sized colonies were associated with the frequent alteration of environment factors. Large-sized colonies had a higher carotenoid content (F = 10.74, P = 0.029) and phycocyanin content (F = 8.28. P = 0.041) during July and August; small-sized colonies had a higher total carbohydrate content (F = 9.43, P = 0.033) and higher nitrate reductase activities (P < 0.01, ANOVA). No significant difference was observed for alkaline phosphatase activities among different sized colonies (P < 0.05, ANOVA). We proposed that some key environmental factors combined with physiological variations in different sized colonies resulted in colony size succession. The selection of colony size may be an adaptive mechanism that promotes the formation, dominance and persistence of cyanobacterial blooms in eutrophic water bodies. |
| 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] | HARMFUL ALGAL BLOOMS ; BLUE-GREEN-ALGA ; NITRATE ASSIMILATION ; BUOYANCY REGULATION ; AERUGINOSA KUTZ ; BENFORDS LAW ; LAKE ; NUTRIENT ; CYANOBACTERIA ; CONSEQUENCES |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [40971249]; National Basic Research and Development Plan [2008CB418002]; Major Science and Technology Program for Water Pollution Control and Treatment [2008ZX07103-004, 2009ZX07104-005] |
| 语种 | 英语 |
| WOS记录号 | WOS:000311262100001 |
| 公开日期 | 2013-01-09 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/17244]  |
| 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, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yinxia,Li, Dunhai. Physiological variations of bloom-forming Microcystis (Cyanophyceae) related to colony size changes during blooms[J]. PHYCOLOGIA,2012,51(6):599-603. |
| APA | Li, Yinxia,&Li, Dunhai.(2012).Physiological variations of bloom-forming Microcystis (Cyanophyceae) related to colony size changes during blooms.PHYCOLOGIA,51(6),599-603. |
| MLA | Li, Yinxia,et al."Physiological variations of bloom-forming Microcystis (Cyanophyceae) related to colony size changes during blooms".PHYCOLOGIA 51.6(2012):599-603. |
入库方式： OAI收割
来源：水生生物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。