Predicting blooms of toxic cyanobacteria in eutrophic lakes with diverse cyanobacterial communities.

ABSTRACT: We investigated possibility of predicting whether blooms, if they occur, would be formed of microcystin-producing cyanobacteria. DGGE analysis of 16S-ITS and mcyA genes revealed that only Planktothrix and Microcystis possessed mcy-genes and Planktothrix was the main microcystin producer. qPCR analysis revealed that the proportion of cells with mcy-genes in Planktothrix populations was almost 100%. Microcystin concentration correlated with the number of potentially toxic and total Planktothrix cells and the proportion of Planktothrix within all cyanobacteria, but not with the proportion of cells with mcy-genes in total Planktothrix. The share of Microcystis cells with mcy-genes was low and variable in time. Neither the number of mcy-possessing cells, nor the proportion of these cells in tot

SUBMITTER: Bukowska A 

PROVIDER: S-EPMC5566422 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature