1887

Abstract

A Gram-stain-positive, aerobic, non-motile and coccoid-shaped bacterium, designated XNB-1, was isolated from farmland soil in Taian, Shandong province, China. Strain XNB-1 contained iso-C and iso-C as the predominant fatty acids. The diagnostic diamino acid of the peptidoglycan was ornithine, and the interpeptide bridge was l-Orn←Gly←d-Glu. The polar lipid profile of strain XNB-1 consisted of diphosphatidylglycerol, phosphatidylglycerol, an unidentified phosphoglycolipid and three unidentified phospholipids. The predominant menaquinone of strain XNB-1 was MK-8(H) and the DNA G+C content was 70.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain XNB-1 belonged to the genus , and shared the highest similarity with HKI 0125 (96.0 %), followed by EGI 80423 (95.5 %). Genome-based analysis of average nucleotide identity of strain XNB-1 with HKI 0125 and EGI 80423 yielded values of 73.1 and 73.3 %, respectively, while the digital DNA–DNA hybridization values were 19.5 and 19.9 %, respectively. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain XNB-1 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is XNB-1 (=CCTCC AB 2019099=KCTC 49259).

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2020-01-20
2020-02-28
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