1887

International Journal of Systematic and Evolutionary Microbiology

Volume 69, Issue 6

Flavobacterium laiguense sp. nov., a psychrophilic bacterium isolated from Laigu glacier on the Tibetan Plateau No Access

Abstract

One bacterial strain, denoted as LB2P30, was isolated from Laigu glacier located on the Tibetan Plateau, PR China. Strain LB2P30 was an aerobic, non-motile, rod-shaped, yellow-pigmented and Gram-stain-negative bacterium. The temperature range for growth was 4–20 °C (optimum, 14 °C). The phylogenetic analysis based on partial 16S rRNA gene sequences showed that strain LB2P30 belonged to the genus Flavobacterium and was most similar to Flavobacterium fluvii (98.12 %) and Flavobacterium limicola (97.91 %). The average nucleotide identity values between strain LB2P30 and its closest relatives, F. fluvii DSM 19978 and F. limicola DSM 15094, were 76.73 % and 77.40 %, respectively. Cells of strain LB2P30 contained summed feature 3 (comprising C16:1ω7c and/or C16:1ω6c) and iso-C15 : 0 as the predominant fatty acids and menaquinone-6 as the sole menaquinone. The genomic DNA G+C content was 34.74 mol%. Based on the phenotypic, chemotaxonomic, genotypic and phylogenetic characteristics, we propose strain LB2P30 as a novel species of the genus Flavobacterium with the nomenclature of Flavobacterium laiguense sp. nov. The type strain is LB2P30 (=CGMCC 1.11271=NBRC 113059).

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Keyword(s): Flavobacterium laiguense , glacier and psychrophilic
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2019-04-17
2019-08-22

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Flavobacterium laiguense sp. nov., a psychrophilic bacterium isolated from Laigu glacier on the Tibetan Plateau
Int J Syst Evol Microbiol 69, 1821 (2019); https://doi.org/10.1099/ijsem.0.003400
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