期刊论文详细信息
Brazilian Journal of Microbiology
A toxic cyanobacterial bloom in an urban coastal lake, Rio Grande do Sul state, Southern Brazil
Luciana Retz De Carvalho2  Fernando Pipole2  Vera Regina Werner1  Haywood Dail Laughinghouse Iv1  Antonio Carlos M. De Camargo1  Marisa Rangel1  Katsuhiro Konno1  Célia Leite Sant' Anna2 
[1] ,Instituto de Botânica Seção de Ficologia São Paulo SP ,Brasil
关键词: Cyanobacteria;    blooms;    Microcystis protocystis;    anabaenopeptins;    microcystins;    cianobactérias;    florações;    Microcystis protocystis;    anabaenopeptina;    microcistina;   
DOI  :  10.1590/S1517-83822008000400031
来源: SciELO
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【 摘 要 】

Reports of cyanobacterial blooms developing worldwide have considerably increased, and, in most cases, the predominant toxins are microcystins. The present study reports a cyanobacterial bloom in Lake Violão, Torres, Rio Grande do Sul State, in January 2005. Samples collected on January 13, 2005, were submitted to taxonomical, toxicological, and chemical studies. The taxonomical analysis showed many different species of cyanobacteria, and that Microcystis protocystis and Sphaerocavum cf. brasiliense were dominant. Besides these, Microcystis panniformis, Anabaena oumiana,Cylindrospermopsis raciborskii, and Anabaenopsis elenkinii f. circularis were also present. The toxicity of the bloom was confirmed through intraperitoneal tests in mice, and chemical analyses of bloom extracts showed that the major substance was anabaenopeptin F, followed by anabaenopeptin B, microcystin-LR, and microcystin-RR.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License

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