Affiliation:
1. St. Petersburg Federal Research Center of the Russian Academy of Sciences (SPC RAS), Scientific Research Centre
for Ecological Safety of the Russian Academy of Sciences
Abstract
The ability of the autochthonous microbiota of different water bodies in the North-West of the Russian Federation to degrade the highly toxic microcystin-LR (MC-LR) was shown for the first time. The maximum rate of degradation of MC-LR was noted in water samples from the Sestroretskij Razliv Lake and the Lower Suzdal Lake during the period of mass development of cyanobacteria. In water samples from Lake Ladoga, where no toxic cyanobacterial blooms were previously noted, MC-LR biodegradation proceeded at a much lower rate and with a longer lag phase. The composition of MC-LR biodegradation products indicates the presence in the autochthonous microbiota of the studied objects of microorganisms capable of degrading microcystins both by the mlr mechanism and by the biochemical pathway involving glutathione.
Publisher
The Russian Academy of Sciences
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