%0 Journal Article %A Kevbrin, Vadim %A Boltyanskaya, Yulia %A Garnova, Elena %A Wiegel, Juergen %T Anaerobranca zavarzinii sp. nov., an anaerobic, alkalithermophilic bacterium isolated from Kamchatka thermal fields %D 2008 %J International Journal of Systematic and Evolutionary Microbiology, %V 58 %N 6 %P 1486-1491 %@ 1466-5034 %R https://doi.org/10.1099/ijs.0.65364-0 %K TABS, N-tris (hydroxymethyl)methyl-4-aminobutanesulfonic acid %K OD, optical density %K YE, yeast extract %I Microbiology Society, %X 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-KS5YT, 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 pH25 °C 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-KS5YT (=VKM B-2436T=DSM 18970T) represents the type strain of a novel species, Anaerobranca zavarzinii sp. nov. %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.65364-0