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Abstract

The taxonomic position of an actinobacterium isolated from a desert soil sample collected from Badain Jaran Desert, designated as CPCC 204711, was established using a polyphasic approach. Cells of the isolate were Gram-staining-positive, aerobic, non-motile cocci. Good growth was observed at 28 °C (range 20–40 °C), pH 7.0 (range pH 6.0–8.0) and 0–1 % NaCl concentration (range 0–5 %, w/v). Galactose, arabinose and ribose were detected as the sugar compositions in the whole cell hydrolysates. The peptidoglycan type was A3gamma (-Dpm-Gly). MK-9(H) was detected as the predominant menaquinone, and diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, several unidentified glycolipids, and one unidentified amino-glycolipid were detected as the major polar lipids. The predominant fatty acid was -C. The genomic DNA G+C content was 73.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain CPCC 204711 affiliated to the family , in which the strain formed a distinct phylogenetic lineage next to the genus with the highest 16S rRNA gene sequence similarity of 96.0 % to YIM 2617. Both phylogenetic analysis and phenotypic characteristics supported that strain CPCC 204711 represents a novel species of a new genus in the family , for which the name gen. nov., sp. nov. is proposed, with CPCC 204711 (=KCTC 39977=DSM 105431) as the type strain.

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2019-08-01
2019-08-19
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