Abstract
Strain SYSU D01096T was isolated from a sandy soil sample collected from Gurbantunggut Desert in Xinjiang, PR China. Phylogenetic analysis of the nearly full-length 16S rRNA gene sequence revealed that strain SYSU D01096T belonged to the family Acetobacteraceae and was closest to Rubritepida flocculans DSM 14296T (96.0% similarity). Cells of strain SYSU D01096T were observed to be non-motile, short rod-shaped and Gram-staining negative. The colonies were observed to be translucent, reddish orange, circular, convex and smooth. Growth occurred at 15-37°C (optimum, 28-30°C), pH 4.0-8.0 (optimum, pH 7.0) and 0-0.5% NaCl (w/v; optimum, 0%) on Reasoner's 2A medium. The predominant ubiquinone was identified as ubiquinone 9 and the major fatty acids were Summed Feature 8 (C18:1 ω7c and/or C18:1 ω6c) and C16:0. The polar lipids consisted of diphosphatidylglycerol (DPG), phosphatidylethanolamine (PE), phosphatidylcholine (PC), phosphatidylglycerol (PG), one unidentified phospholipid (PL), three unidentified aminolipids (AL1-3) and one unidentified aminophospholipid (APL). The genomic DNA G + C content was 69.1%. Phylogenetic tree based on 16S rRNA gene sequences indicated strain SYSU D01096T represented an individual lineage in the family Acetobacteraceae, which was supported by 30 core gene-based phylogenomic tree. Based on the multi-analysis including physiological, chemotaxonomic and phylogenetic comparison, strain SYSU D01096T was proposed to represent a novel species of a novel genus, named Sabulicella rubraurantiaca gen. nov., sp. nov., within the family Acetobacteraceae. The type strain is SYSU D01096T (= CGMCC 1.8619T = KCTC 82268T = MCCC 1K04998T).
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