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Abstract

Strain XMU 706, isolated from the rhizosphere soil of a herbaceous plant, L., collected from Xiamen City, China, was characterized using a polyphasic approach to clarify its taxonomic position. Strain XMU 706 shared the highest 16S rRNA gene sequence similarity with YIM 31530 (97.2 %), and formed a distinct branch in the subclade of the genus in the 16S rRNA gene phylogenetic tree. The genetic distances of gyrase subunit B gene () sequence between strain XMU 706 and other species of the genus ranged from 0.045 to 0.116, greater than the threshold value of 0.014 for species delineation of this genus. DNA–DNA hybridization experiments gave a DNA–DNA relatedness value of 34.82 ± 6.31 % between strain XMU 706 and YIM 31530. The chemotaxonomic properties further supported the assignment of strain XMU 706 to the genus . -Diaminopimelic acid was the diagnostic amino acid in the cell-wall peptidoglycan and cell hydrolysates contained ribose and glucose. The major menaquinone was MK-9(H). The polar lipids comprised diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine and other unidentified phospholipids and lipids. The major fatty acids of the strain were anteiso-C and iso-C, and the G+C content of the genomic DNA was 67.3 mol%. Based on the results of phylogenetic analysis, phenotypic and genotypic characterization, strain XMU 706 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is XMU 706 ( = KCTC 29676 = MCCC 1K00429).

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2015-09-01
2024-04-16
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