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Abstract

A rod-shaped, endospore-forming, aerobic bacterium, designated FJAT-45347, was isolated from rhizosphere soil collected from the Taklamakan desert in Xinjiang (PR China). Growth was observed at 15–35 °C (optimum 25 °C), in 0 % and 20.0 % NaCl (optimum 8.0 %) and at pH 7.5–12.0 (optimum 8.0), respectively. The cell-wall peptidoglycan contained -diaminopimelic acid and the isoprenoid quinone was MK-7. The main fatty acids were iso-C, anteiso-C and anteiso-C. The main polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. Phylogenetic analysis based on 16S rRNA gene sequences affiliated FJAT-45347 to the genus , and it showed the highest sequence similarities to DSM 8720 (96.1 %). The average nucleotide identity and DNA–DNA hybridization values between FJAT-45347 and the most closely related species were 68.5 and 26.2 %, respectively, which were lower than the thresholds commonly used to define species (96 and 70 %, respectively), indicating that it represented a member of a different taxon. The DNA G+C content was 40.6 mol%. The phenotypic characters and taxono-genomics study revealed that FJAT-45347 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is FJAT-45347 (=DSM 104632=CCTCC AB 2016257).

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2018-01-01
2020-01-24
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