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  • Title: Nocardioides ungokensis sp. nov., isolated from lake sediment.
    Author: Zhao Y, Liu Q, Kang MS, Jin F, Yu H, Im WT.
    Journal: Int J Syst Evol Microbiol; 2015 Dec; 65(12):4857-4862. PubMed ID: 26443681.
    Abstract:
    A Gram-reaction-positive, aerobic, coccus- to rod-shaped, non-motile, non-spore-forming bacterium (strain UKS-03T) was isolated from a sediment sample of Ungok Lake in Gochang, Republic of Korea. The taxonomic position of this bacterium was determined in an investigation based on a polyphasic approach. On the basis of 16S rRNA gene sequence analysis, strain UKS-03T was shown to belong to the family Nocardioidaceae and to be related most closely to Nocardioides ginsengisegetis Gsoil 485T (98.5 % similarity), Nocardioides koreensis MSL-09T (98.4 %) and 'Nocardioides panaciterrulae' Gsoil 958 (97.3 %). Strain UKS-03T was characterized chemotaxonomically as having ll-2,6-diaminopimelic acid in its cell-wall peptidoglycan, MK-8(H4) as the predominant menaquinone, diphosphatidylglycerol and phosphatidylglycerol as the main polar lipids, and iso-C16 : 0, C17 : 1ω8c and C17 : 0 10-methyl as its major fatty acids. The G+C content of the genomic DNA was 71.9 mol%. Mean DNA-DNA relatedness values between strain UKS-03T and N. ginsengisegetis Gsoil 485T, N. koreensis KCTC 19272T and 'N. panaciterrulae' Gsoil 958 were 37.5 ± 7.2, 6.8 ± 0.9 and 3.1 ± 0.7 %, respectively. On the basis of the data from this polyphasic taxonomic study, strain UKS-03T represents a novel species of the genus Nocardioides, for which the name Nocardioides ungokensis sp. nov. is proposed. The type strain is UKS-03T ( = KACC 18304T = LMG 28591T).
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