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Aquipluma nitroreducens gen. nov. sp. nov., a novel facultatively anaerobic bacterium isolated from a freshwater lake

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Title: Aquipluma nitroreducens gen. nov. sp. nov., a novel facultatively anaerobic bacterium isolated from a freshwater lake
Authors: Watanabe, Miho Browse this author
Kojima, Hisaya Browse this author →KAKEN DB
Fukui, Manabu Browse this author →KAKEN DB
Keywords: Bacteroidetes
facultative anaerobic bacterium
Issue Date: 6-Nov-2020
Publisher: Society for General Microbiology
Journal Title: International journal of systematic and evolutionary microbiology
Volume: 70
Issue: 12
Start Page: 6408
End Page: 6413
Publisher DOI: 10.1099/ijsem.0.004551
Abstract: A novel facultatively anaerobic, nitrate-reducing bacterium, designated MeG22(T), was isolated from a freshwater lake in Japan. Cells of the strain were straight rods (0.8x2.5-10 mu m), motile, and Gram-stain-negative. For growth, the optimum NaCl concentration was 0% and the optimum temperature was 30 degrees C. Under anoxic conditions, strain MeG22(T) reduced nitrate to nitrite. Major cellular fatty acids were C-15:1 omega 6c (13.6 %), C-17:0 (11.9 %), anteiso-C-15:0 (10.6 %) and iso-C-15:0 (10.6 %). The major respiratory quinone was menaquinone-7. The genome sequence of strain MeG22(T) consists of 5 712 279 bp with a G+C content of 40.3mol%. Phylogenetic analysis based on the 16S rRNA gene revealed that the novel strain belonged to the family Prolixibacteraceae within the phylum Bacteroidetes. The closest relative of strain MeG22(T) was Sunxiuqinia faeciviva strain JAM-BA0302(T) with a 16S rRNA gene sequence similarity of 90.9 %. On the basis of phylogenetic and phenotypic characterization, Aquipluma nitroreducens, gen. nov., sp. nov., belonging to the family Prolixibacteraceae is proposed with the type strain MeG22(T) (=NBRC 112896(T)=DSM 106262(T)).
Type: article
Appears in Collections:低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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