1887

Abstract

A new species of tetramethylammonium-assimilating bacteria was isolated from an activated sludge which was used for the treatment of tetramethylammonium hydroxide contained in the wastewater from semiconductor manufacturing processes. Cells of the bacteria were gram-negative, nonmotile, short rods (0.5 to 0.8 μm by 0.7 to 1.1 μm). The major respiratory quinone component of the bacteria was Q-10. The G+C content was 71 mol%. Isolates are mesophilic and assimilate methylated amines such as tetramethylammonium, trimethylamine, dimethylamine, and methylamine under neutral conditions. The isolates resemble species with respect to morphology but were distinguishable from the known species of the genus. We propose sp. nov. The type strain is strain B (=JCM 7684).

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1990-07-01
2023-12-05
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