Accumulation and fate of tri-n-butyltin cation in estuarine bacteria

Microbial Ecology - Tập 8 - Trang 241-251 - 1982
W. R. Blair1, G. J. Olson1, F. E. Brinckman1, W. P. Iverson1
1Center for Materials Science, National Bureau of Standards, Washington, DC, USA

Tóm tắt

The accumulation and possible metabolic transformation of tri-n-butyltin cation by tin-resistant estuarine bacteria was studied. The bacterial isolates accumulated tributyltin to 3.7–7.7 mg tin per g dry weight of cells by a nonenergy requiring process, probably by adsorption to the cell envelope. Chemical speciation of cell extracts and culture media by combined liquid chromatography-atomic absorption spectrophotometry and tin-selective purge and trap flame photometric gas chromatography for possible tributyltin degradation products revealed no significant biotransformations of tributyltin cation by the tributyltin-resistant isolates. Apparently the isolates accumulate, but do not metabolize tributyltin.

Tài liệu tham khảo

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