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Molecular evaluation on the distribution, diversity, and toxicity of Microcystis (Cyanobacteria) species from Lake Ulungur-a mesotrophic brackish desert lake in Xinjiang, China
Lin, Shen (1); Shen, Jianzhong (2); Liu, Yang (1); Wu, Xingqiang (1); Liu, Qigen (3); Li, Renhui (1); Li, R.(reli@ihb.ac.cn)
2010
Source PublicationEnvironmental Monitoring and Assessment
Issue0Pages:1-12
AbstractThe distribution and diversity of the waterbloom-forming cyanobacteria, mainly including Microcystis species, were investigated using molecular approaches in Lake Ulungur, an increasingly eutrophic and brackish lake located in Xinjiang, China. Real-time PCR analyses showed the abundance of Microcystis 16S rDNA gene copies in the Ulungur Lake is low, at 7.2 × 104 copies L - 1 averagely and 4.5 × 105 copies L - 1 at maximum. Two Microcystis species, M. aeruginosa (Ku¨tzing) Lemmermann and Microcystis wesenbergii (Koma´rek) Koma´rek were, for the first time, reported in this lake. The mcyA gene-specific PCR determination on the isolates of Microcystis showed that the M. aeruginosa strains are all mcyA-containing genotypes, while M. wesenbergii are non-mcyA-containing ones. The microcystin contents of the toxic M. aeruginosa strains were shown to be lower than those of the Microcystis strains isolated from other eutrophic lakes in China. Phylogenetic analyses based on 16S rRNA and rpoC1 genes showed that the Microcystis strains isolated from the Ulungur Lake were not genetically divergent from those isolated in the other freshwaters. Such an investigation would contribute to the knowledge on the bloom-forming cyanobacteria of the increasingly eutrophic and saline lakes in the desert area. © 2010 Springer Science+Business Media B.V.
KeywordLake Ulungur Microcystis Real-time Pcr Hplc Microcystin Mcy Gene Brackish Lake
Department(1) Key Laboratory of Aquatic Biodiversity and Conservation Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; (2) Fishery College, Huazhong Agricultural University, Wuhan, 430070, China; (3) College of Fisheries and Life Sciences, Shanghai Ocean University, Shanghai, 200090, China; (4) Graduate University of Chinese Academy of Sciences, Beijing, 100039, China
Indexed ByEI
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/14444
Collection藻类生物学及应用研究中心_期刊论文
Corresponding AuthorLi, R.(reli@ihb.ac.cn)
Recommended Citation
GB/T 7714
Lin, Shen ,Shen, Jianzhong ,Liu, Yang ,et al. Molecular evaluation on the distribution, diversity, and toxicity of Microcystis (Cyanobacteria) species from Lake Ulungur-a mesotrophic brackish desert lake in Xinjiang, China[J]. Environmental Monitoring and Assessment,2010(0):1-12.
APA Lin, Shen .,Shen, Jianzhong .,Liu, Yang .,Wu, Xingqiang .,Liu, Qigen .,...&Li, R..(2010).Molecular evaluation on the distribution, diversity, and toxicity of Microcystis (Cyanobacteria) species from Lake Ulungur-a mesotrophic brackish desert lake in Xinjiang, China.Environmental Monitoring and Assessment(0),1-12.
MLA Lin, Shen ,et al."Molecular evaluation on the distribution, diversity, and toxicity of Microcystis (Cyanobacteria) species from Lake Ulungur-a mesotrophic brackish desert lake in Xinjiang, China".Environmental Monitoring and Assessment .0(2010):1-12.
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