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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 66, Issue 7

sp. nov., isolated from an ice core Free

Abstract

A Gram-stain-negative, aerobic, rod-shaped, beige bacterium, strain B717-2, was isolated from an ice core drilled from Muztagh Glacier on the Tibetan Plateau, China. According to phylogenetic analyses based on 16S rRNA gene sequences, the novel strain was related most closely to and shared 97.7 % similarity with the type strain of this species. It grew optimally at pH 7, at 15 °C and with 2 % (w/v) NaCl. Major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. The major fatty acids were summed feature 3 (C and/or iso-C 2-OH), summed feature 8 (C , C ) and C. The sole respiratory quinone was Q-8. The DNA G+C content was 63.4 mol %. In DNA–DNA hybridization tests, strain B717-2 shared 37.0±1.9, 30.0±1.7, 26.0±0.9, 23.4±0.5 and 18.4±1.9 % DNA–DNA relatedness with JS12-13, 34-P, CCUG 39402, Cr4-12and Cr4-35, respectively. Based on the phenotypic, phylogenetic and genetic characteristics, strain B717-2 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is B717-2 (=CGMCC 1.15322=JCM 31171).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Polaromonas and Proteobacteria
© 2016 IUMS
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2016-07-01
2024-04-23
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Polaromonas eurypsychrophila sp. nov., isolated from an ice core
Int J Syst Evol Microbiol 66, 2497 (2016); https://doi.org/10.1099/ijsem.0.001079
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