1887

Abstract

A Gram-staining-negative, rod-shaped, motile by gliding and facultative anaerobic bacterial strain, YS-25, was isolated from a sludge of a manganese mine. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain YS-25 formed a single branch within the strains of the family and showed low similarities to CCTCC AB 2010223 (91.7 %), ‘’ TDMA-5 (91.5 %), DS-45 (90.9 %), THG-T11 (90.9 %), MCCC 1A01299 (90.8 %) and CCTCC AB 209030 (88.5 %). Strain YS-25 had some unique physiological and biochemical characteristics: facultative anaerobic, able to hydrolyse Tween 40, positive for cystine arylamidase and negative for mannose assimilation and β-galactosidase. The polar lipids of strain YS-25 were phosphatidylethanolamine, aminolipid, two unknown lipids and two glycolipids. The presence of glycolipids and absence of sphingolipid were different from the and strains. The major fatty acids (>5 %) were iso-C, summed feature 3 (iso-C 2-OH and/or C 7), unknown ECL 13.565, iso-C 3-OH, iso-C 9 and anteiso-C. The genomic DNA G+C content was 42.0 mol%, and the only respiratory quinone was menaquinone 7. On the basis of polyphasic taxonomic analyses, strain YS-25 is considered to represent a novel genus and species, for which the name gen. nov., sp. nov. is proposed. The type strain is YS-25 (=KCTC 52203=CCTCC AB 2016051).

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2016-12-01
2020-04-04
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