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Strain DCY24T, a Gram-reaction-positive, aerobic, rod-shaped, motile bacterium, was isolated from soil of a ginseng field in South Korea. According to 16S rRNA gene sequence analysis, it was closely related to Nocardioides aromaticivorans DSM 15131T (95.1 % similarity), Nocardioides simplex KCTC 9106T (95.0 %), Nocardioides nitrophenolicus DSM 15529T (94.8 %) and Nocardioides kongjuensis DSM 19082T (94.7 %). Chemotaxonomic data revealed that strain DCY24T possessed MK-8(H4) as the predominant menaquinone, ll-2,6-diaminopimelic acid as the diagnostic diamino acid, phosphatidylglycerol and diphosphatidylglycerol as predominant polar lipids and iso-C16 : 0, iso-C17 : 0 and C18 : 1 ω9c as predominant fatty acids. The DNA G+C content was 71.0 mol%. Based on evidence from this polyphasic study, strain DCY24T (=KCTC 19265T =LMG 24128T) should be classified as the type strain of a novel Nocardioides species, for which the name Nocardioides humi sp. nov. is proposed.
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