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International Journal of Systematic and Evolutionary Microbiology

Volume 58, Issue 6

sp. nov., an anaerobic, alkalithermophilic bacterium isolated from Kamchatka thermal fields Free

Abstract

A novel obligately anaerobic, alkalithermophilic, chemo-organotrophic bacterium was isolated from a small and very shallow geothermally heated pool at Pushino (Kamchatka, Far East Russia). The bacterium, designated strain JW/VK-KS5Y, was a Gram staining negative, Gram type positive rod. The cells were sometimes branched, with a tendency to grow in long chains, and were non-sporulating and non-motile. The shortest observed doubling time was 28 min when the novel strain was grown at 54–60 °C in 120 mM sodium carbonate-containing medium at pH 8.5–9.0. The novel bacterium grew on yeast extract and soytone as sole carbon and energy sources but could also use fumarate, thiosulfate and sulfur as electron acceptors. The DNA G+C content was 32.5 mol%. Based on phylogenetic, DNA–DNA hybridization and phenotypic data, it was concluded that isolate JW/VK-KS5Y (=VKM B-2436=DSM 18970) represents the type strain of a novel species, sp. nov.

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Keyword(s): OD, optical density , TABS, N-tris (hydroxymethyl)methyl-4-aminobutanesulfonic acid and YE, yeast extract
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2008-06-01
2021-10-17
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Anaerobranca zavarzinii sp. nov., an anaerobic, alkalithermophilic bacterium isolated from Kamchatka thermal fields
Int J Syst Evol Microbiol 58, 1486 (2008); https://doi.org/10.1099/ijs.0.65364-0
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vol. , part 6, pp. 1486 - 1491

Product profiles for co-substrates and acceptors utilized by strain JW/VK-KS5Y in the presence of 0.5% (w/v) YE. [ PDF] 59 KB

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