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Isolation of Cyanobacteria Producing Microcystin from Lakes  

Lee, Hee-Seon (Department of Environmental Engineering, Chungbuk National University)
Oh, Kyoung-Hee (Biotechnology Research Institute, Chungbuk National University,)
Cho, Young-Cheol (Department of Environmental Engineering, Chungbuk National University)
Publication Information
Korean Journal of Microbiology / v.44, no.3, 2008 , pp. 251-257 More about this Journal
Abstract
Four potential microcystin-producing cyanobacteria were isolated from large reservoirs which act as sources of drinking water supply in Korea. Strain DC-2, YD-l, and YD-6 were closely related to Microcystis aeruginosa based on the analysis of l6S rRNA gene and mcyA gene sequences. mcyA gene sequence of YDS2-3, isolated from Yongdam Reservoir, was closed to that of M. aeruginosa, whereas l6S rRNA gene sequence was not related to the known sequences of microcystin-producing cyanobacteria indicating this strain can be a novel cyanobacterium belonging to the genus Microcystis. When mcyA gene sequences of isolated cyanobacteria were compared with the mcyA gene sequence library of two reservoirs, the sequence of DC-2 matched with the dominant ones.
Keywords
Daechung Reservoir; mcyA; microcystin; Microcystis; Yongdam Reservoir;
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