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Appl Environ Microbiol. 1992 October; 58(10): 3410-3412

Occurrence of tributyltin-tolerant bacteria in tributyltin- or cadmium-containing seawater.

Department of Food Science & Technology, Faculty of Fisheries, Hokkaido University, Hakodate, Japan.

ABSTRACT

Tributyltin chloride (TBTCl)-tolerant bacteria accounted for 90% of the flora in natural seawater to which TBTCl was added. These tolerant bacteria were insensitive to 250 nmol of TBTCl per disc, and all were Vibrio species. Total counts of viable bacteria did not decrease upon storage of the TBTCl-treated seawater, indicating that enrichment of tolerant strains took place. Addition of CdSO4 to seawater resulted in the occurrence of TBTCl-tolerant bacteria as well as Cd-tolerant bacteria, suggesting some correlation of Cd tolerance and TBTCl tolerance.