| Variation of Microcystis and microcystins coupling nitrogen and phosphorus nutrients in Lake Erhai, a drinking-water source in Southwest Plateau, China | |
| Yu, Gongliang1,2; Jiang, Yongguang1,3; Song, Gaofei1,3; Tan, Wenhua1; Zhu, Mengling1; Li, Renhui1 | |
| 2014-08-01 | |
| Source Publication | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| ISSN | 0944-1344 |
| Volume | 21Issue:16Pages:9887-9898 |
| Abstract | Lake Erhai is the second largest lake of Southwest China and an important drinking water source. The lake is currently defined as the preliminary stage of eutrophic states, but facing a serious threat with transfer into intensive eutrophication. The present study examined the dynamics of Microcystis blooms and toxic Microcystis in Lake Erhai during 2010, based on quantitative real-time PCR method using 16S rRNA gene specific for Microcystis and microcystin systhesis gene (mcy), and chemical analysis on microcystin (MC) concentrations. Total Microcystis cell abundance at 16 sampling sites were shown as an average of 1.7 x 10(7) cells l(-1) (1.3 x 10(2)-3.8 x 10(9) cells l(-1)). Microcystin LR (MC-LR) and microcystin RR (MC-RR) were the main variants. The strong southwesterly winds, anticlockwise circular flows and geographical characteristics of lake and phytoplankton community succession impacted the distribution patterns of Chl a and MC in the lake. The concentration of Chl a and MC and abundances of total Microsytis and MC-producing Microsystis (MCM) were shown to be positively correlated with pH, DO and TP, negatively correlated with SD, NO3-N, TN/Chl a and TN/TP, and not correlated with NH4-N, TN, dissolved total nitrogen (DTN) and water temperatures. When TN/TP decrease, Microcystis tended to dominate and MC concentrations tended to increase, suggesting that the "TN/TP rule" can be partially applied to explain the correlation between the cyanobacterial blooms and nutrients N and P only within a certain nutrient level. It is speculated that N and P nutrients and the associated genes (e.g., mcy) may jointly drive MC concentration and toxigenicity of Microcystis in Lake Erhai. |
| Subtype | Article |
| Keyword | Microcystin Microcystis Environmental Factor Nitrogen Phosphorus Mcy Gene Lake Erhai |
| DOI | 10.1007/s11356-014-2937-1 |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000340613200043 |
| WOS Keyword | REAL-TIME PCR ; CYANOBACTERIUM MICROCYSTIS ; ENVIRONMENTAL-FACTORS ; FRESH-WATER ; AERUGINOSA ; PHYTOPLANKTON ; DYNAMICS ; COMMUNITY ; BLOOM ; POPULATION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/342005/20403 |
| Collection | 藻类生物学及应用研究中心_期刊论文 |
| Affiliation | 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China 2.Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki, Japan 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Yu, Gongliang,Jiang, Yongguang,Song, Gaofei,et al. Variation of Microcystis and microcystins coupling nitrogen and phosphorus nutrients in Lake Erhai, a drinking-water source in Southwest Plateau, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2014,21(16):9887-9898. |
| APA | Yu, Gongliang,Jiang, Yongguang,Song, Gaofei,Tan, Wenhua,Zhu, Mengling,&Li, Renhui.(2014).Variation of Microcystis and microcystins coupling nitrogen and phosphorus nutrients in Lake Erhai, a drinking-water source in Southwest Plateau, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,21(16),9887-9898. |
| MLA | Yu, Gongliang,et al."Variation of Microcystis and microcystins coupling nitrogen and phosphorus nutrients in Lake Erhai, a drinking-water source in Southwest Plateau, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 21.16(2014):9887-9898. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Variation of Microcy（621KB） | 开放获取 | CC BY-NC-SA | View Application Full Text | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment