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Rhabdobacter roseus gen. nov., sp. nov., isolated from soil
Dahal, Ram Hari,Kim, Jaisoo Microbiology Society 2016 International journal of systematic and evolutiona Vol.66 No.-
<P>An aerobic, Gram-stain-negative, oxidase- and catalase-positive, non-motile, non-spore-forming, rod-shaped, pink-pigmented bacterium, designated strain R49(T), was isolated from soil. Flexirubin-type pigments were absent. Phylogenetic analysis based on its 16S rRNA gene sequence revealed that strain R49(T) formed a lineage within the family Cytophagaceae of the phylum Bacteroidetes that was distinct from the most closely related genera Dyadobacter (91.98-93.85 % sequence similarity), Persicitalea (88.69 %) and Runella (84.79-85.81 %). The major isoprenoid quinone was menaquinone-7 (MK-7) and the major polar lipid was phosphatidylethanolamine. The major cellular fatty acids were summed feature 3 (C-16 : 1 omega 7c and/or C-16 : 1 omega 7c), iSO-C-15 : 0, C-16 : 1 omega 5c, C-16 : 0 and iso-C-17 : 0 3-OH. The DNA G + C content of strain R49(T) was 53.9 mol%. On the basis of phenotypic, genotypic and phylogenetic analysis, strain R49(T) represents a novel species of a new genus in the family Cytophagaceae, for which the name Rhabdobacter roseus gen. nov., sp. nov. is proposed. The type strain of Rhabdobacter roseus is R49(T) (=KEMB 9005-318(T)=KACC 18395(T)=JCM 30685(T)).</P>
Dahal, Ram Hari,Chaudhary, Dhiraj Kumar,Kim, Jaisoo Springer-Verlag 2017 Archives of microbiology Vol.199 No.5
<P>A novel aerobic, non-motile, halotolerant, alkalitolerant, hydrocarbon degrading, and rod shaped bacterium, designated strain R160(T), was isolated from soil in South Korea. Cells were Gram-staining-negative, catalase-positive, and oxidase-negative. This strain grew up to 7% of NaCl and in the pH range of 6-11 (optimum 7.0-10.0). The isolate degraded 51.7 +/- 1.3% of hydrocarbon components (C-18, C-20, and C-22) and 45.8 +/- 1.4% oil components (kerosene, diesel, and gasoline). Phylogenetic analysis based on 16 S rRNA gene sequences revealed that strain R160(T) formed a lineage within the genus Acinetobacter, and was closely related to 'Acinetobacter oleivorans' DR1(T) (97.47%, sequence similarity). Other closely related members have sequence similarity between 97.47 to 96.52%. The predominant respiratory lipoquinones of strain R160(T) were ubiquinone 9 (Q-9) and ubiquinone 8 (Q-8). The major polar lipids were phosphatidylethanolamine (PE), diphosphatidylglycerol (DPG), phosphatidylglycerol (PG), and phosphatidylcholine (PC). The major cellular fatty acids were 9-octadecenoic acid (C-18:1 omega 9c), hexadecanoic acid (C-16:0), and summed feature (comprising C-16:1 omega 7c and/or C-16:1 omega 6c). The DNA G + C content of strain R160(T) was 44.9 mol%. On the basis of phenotypic, genotypic, chemotaxonomic, and phylogenetic characteristics, strain R160(T) represents a novel species of the genus Acinetobacter, for which the name Acinetobacter halotolerans sp. nov. is proposed. The type strain is R160(T) (= KEMB 9005-333(T) = KACC 18453(T) = JCM 31009(T)).</P>