Abstract
Data on the hepato- and neurotoxigenic cyanobacteria in phytoplankton of the Rybinsk Reservoir have been obtained for the first time. Different methods for revealing toxigenic cyanobacteria (light microscopy, PCR analysis, and enzyme-linked immunosorbent assay) demonstrate the same results. Hepatotoxins microcystins and for the first time neurotoxins saxitoxins were detected in the reservoir, whereas cylindrospermopsin and anatoxin-a were not revealed. The presence of mcyE and stxA genes responsible for microcystin and saxitoxin biosynthesis in total phytoplanktonic DNA is demonstrated. The following three genera of cyanobacteria containing mcyE gene are identified: Microcystis (M. aeruginosa, M. viridis), Planktothrix (P. agardhii), and Dolichospermum (Anabaena). It is hypothesized that saxitoxin-producing cyanobacteria Dolichospermum (Anabaena) inhabit the Rybinsk Reservoir.
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Original Russian Text © S.I. Sidelev, L.G. Korneva, V.V. Solovyeva, A.A. Zubishina, D.N. Pligin, 2016, published in Biologiya Vnutrennykh Vod, 2016, No. 4, pp. 37–44.
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Sidelev, S.I., Korneva, L.G., Solovyeva, V.V. et al. Molecular genetic identification and seasonal succession of toxigenic cyanobacteria in phytoplankton of the Rybinsk Reservoir (Russia). Inland Water Biol 9, 368–374 (2016). https://doi.org/10.1134/S199508291604012X
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DOI: https://doi.org/10.1134/S199508291604012X