Affiliation:
1. Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences, Leninskiy Prospect, 33, bld. 2, 119071, Moscow, Russia
2. Gubkin University, Leninskiy Prospect, 65/1, 119991, Moscow, Russia
Abstract
A novel anaerobic chemoorganotrophic, facultatively alkaliphilic bacterium (strain M17 DMBT) was isolated from a coastal lake (Golubitsckoe, Taman Peninsula, Russia). Cells were motile rods, 1.6–2.1 µm long and 0.45 µm in diameter. The temperature range for growth was 14–42 °C, with an optimum at 30 °C. The pH range for growth was pH 5.5–10.0, with an optimum at pH 8.0–8.5. Growth of strain M17 DMBT was observed at NaCl concentrations of 1–12 % (w/v) with optimum growth at 1.5–2.0 %. Strain M17 MBTutilized glucose, fructose, sucrose, ribose, mannose, raffinose, arabinose, dextrin, yeast extract, peptone, carbon monoxide, vanillic acid and 3,4-dimethoxybenzoic acid. The end products from glucose fermentation were acetate and ethanol. The DNA G+C content of strain M17 DMBT was 39.1 mol%. The closest phylogenetic relative of strain M17 DMBT was
Alkalibacter saccharofermentans
with 97.8 % 16S rRNA gene sequence similarity. The OrthoANI value between M17 DMBT and
A. saccharofermentans
was 70.4 %. Based on the phenotypic, genotypic and phylogenetic characteristics of the isolate, strain M17 DMBT is considered to represent a novel species of the genus
Alkalibacter
for which the name Alkalibacter mobilis sp. nov. is proposed. The type strain of Alkalibacter mobilis is M17 DMBT (=KCTC 15920T=VKM B-3408T).
Funder
Ministry of Science and Higher Education of the Russian Federation
Russian Science Foundation
Subject
General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology
Cited by
7 articles.
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