Abstract
The distribution of the cyclic heptapeptide toxin, microcystin, was studied among 31 strains of Microcystis aeruginosa. Microcystins-RR, -YR and -LR were detected in fifteen strains and microcystin-LR was in two strains, but no toxin was found in fourteen strains. All three toxins were detected in all 12 strains belonging to the large cell-size group recognized by cell size and allozyme genotype. This pattern of toxin composition is compatible with that of M. viridis. The small cell-size group showed variation in the toxin composition as in the case of allozyme genotype.
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Watanabe, M.F., Watanabe, M., Kato, T. et al. Composition of cyclic peptide toxins among strains ofMicrocystis aeruginosa (blue-green algae, cyanobacteria). Bot Mag Tokyo 104, 49–57 (1991). https://doi.org/10.1007/BF02493403
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DOI: https://doi.org/10.1007/BF02493403