Abstract
Several strains of microorganisms that lyse Microcystis cells were isolated from eutrophic lakes. These microorganisms degraded microcystin produced by the Microcystis cells in a temperature-dependent manner; they showed a higher degradation activity at 30°C. There were no correlations between the activities of the microorganisms in lysing the Microcystis cells and for the degradation of microcystin. Among the microorganisms, myxobacteria showed a higher activity for degrading microcystin.
