gen. nov., sp. nov., isolated from a haloalkaline lake sediment sample Free

Abstract

A Gram-stain-negative, strictly aerobic, non-motile, rod-shaped bacterium, designated CWB-1, was isolated from a haloalkaline lake sediment sample collected from the bottom of Chaiwopu Lake, Urumchi, Xinjiang Province, PR China. Strain CWB-1 grew at 4–40 °C (optimum, 30–35 °C), pH 6.5–9.0 (optimum, pH 6.5–7.0) and with 0.5–5.5 % (w/v) NaCl (optimum, 2.5–3.0 %). Phylogenetic analyses based on the 16S rRNA gene sequence and the whole genome sequence both revealed that strain CWB-1 belonged to the family . The strain had the highest similarity of the 16S rRNA gene sequence to PAMC 27130 (92.8 %). The genome of strain CWB-1 was 3 548 011 bp long with 36.3 % DNA G+C content. The predominant fatty acids (>10 %) in the CWB-1 cells were iso-C, iso-C 3-OH and summed feature 1 (iso-C H/C 3-OH). The major respiratory quinone was menaquinone-6 and the major polar lipids were phosphatidylethanolamine, an unidentified aminolipid and two unidentified lipids. Based on the phylogenetic analyses, as well as the phenotypic characteristics, a novel genus and species of the family , gen. nov., sp. nov., is proposed. The type strain is CWB-1 (=KCTC 72450=CGMCC 1.17149).

Funding
This study was supported by the:
  • National Key Research and Development Programs of China (Award 2018YFA0900400 and 2018YFA0901704)
    • Principle Award Recipient: Yue-zhong Li
  • Key Program of Shandong Natural Science Foundation (Award ZR2016QZ002)
    • Principle Award Recipient: Yue-zhong Li
  • National Outstanding Youth Science Fund Project of National Natural Science Foundation of China (Award 31670076 and 31471183)
    • Principle Award Recipient: Yue-zhong Li
  • Special investigation on scientific and technological basic resources (Award 2017FY100302)
    • Principle Award Recipient: Yue-zhong Li
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2020-09-04
2024-03-29
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