В недавнее время отмечено массовое развитие способных к синтезу токсинов цианобактерий в донных сообществах олиготрофного озера Байкал.
В настоящей работе исследованы образцы биоплёнок, собранные в прибрежной зоне южного Байкала с выходов коренных пород и с больных губок эндемичных родов Baikalospongia и Lubomirskia. В составе плёнок обнаружены цианобактерии, принадлежащие порядкам Synechococcales, Chroococcales, Oscillatoriales и Nostocales. С помощью молекулярно-биологических маркеров к гену микроцистинсинтетазы mcyE выявлено, что среди цианобактерий исследованных бентосных биопленок присутствуют потенциальные продуценты микроцистина.

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