Abstract
A Gram-stain positive, aerobic, irregularly rod-shaped, non-spore-forming bacterium, designated as BN130099T, was isolated from farmland soil sampled in Goesan-gun, Chungbuk, Republic of Korea. Phylogenetic analysis of its 16S rRNA gene sequence showed that the strain is closely related to Nocardioides pelophilus KACC 19192T with 98.11 % similarity. The DNA G+C content of strain BN130099T was 68.84 mol% (draft genome sequence). The genome sequence of BN130099T displayed key enzymes involved in bioremediation of organic pollutants and biosynthetic clusters of saquayamycin. The strain contained ll-2,6-diaminopimelic acid in the cell-wall peptidoglycan and MK-8(H4) as the major respiratory quinone. The predominant fatty acid was iso-C16 : 0. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine and phosphatidylinositol. The results of physiological and biochemical characterization allowed the phenotypic differentiation of strain BN130099T from N. pelophilus KACC 19192T. The strain represents a novel species of the genus Nocardioides, for which we propose the name Nocardioides humilatus sp. nov. The type strain is BN130099T (=KCTC 49079T=CCTCC AB 2018135T).
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