1887

Abstract

The strain BerOc1 was isolated from brackish sediments contaminated with hydrocarbons and heavy metals. This strain has been used as a model strain of sulfate-reducer to study the biomethylation of mercury. The cells are vibrio-shaped, motile and not sporulated. Phylogeny and physiological traits placed this strain within the genus Pseudodesulfovibrio . Optimal growth was obtained at 30 °C, 1.5 % NaCl and pH 6.0–7.4. The estimated G+C content of the genomic DNA was 62.6 mol%. BerOc1 used lactate, pyruvate, fumarate, ethanol and hydrogen. Terminal electron acceptors used were sulfate, sulfite, thiosulfate and DMSO. Only pyruvate could be used without a terminal electron acceptor. The major fatty acids were C18 : 0, anteiso-C15 : 0, C16 : 0 and C18 : 1ω7. The name Pseudodesulfovibrio hydrargyri sp. nov. is proposed for the type strain BerOc1 (DSM 10384=JCM 31820).

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2018-03-13
2019-10-14
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