Y. Tsuchiya, M. Watanabe, M. Watanabe
1992
Citations
2
Influential Citations
18
Citations
Journal
Water Science and Technology
Abstract
Volatile organic sulfur compounds produced by Microcystis isolated from inland waters of Japan were identified. Compounds with an unpleasant smell have been detected from seven strains of Microcystis aeruginosa and three strains of M.wesenbergii. Isopropyl mercaptan was detected in all strains and isopropyl disulfide from five strains. Methyl isothiocyanate, isopropyl methyl sulfide, and isopropyl methyl disulfide were also found in some strains. Isopropyl mercaptan and isopropyl disulfide were decomposed by chlorination, with the formation of isopropyl sulfonyl chloride. A mutagenicity study of isopropyl sulfonyl chloride and the chlorinated culture media produced by Microcystis was carried out using the Ames Salmonella/microsome assay. Isopropyl sulfonyl chloride exhibited mutagenic activity for strain TA 98 in the presence of S9 mix and for strain TA 100 with and without the S9 mix. Some chlorinated algal cultures showed mutageic activity with strains TA 98 and TA 100, with and without the S9 mix.