Aliiglaciecola aliphaticivorans sp. nov., an aliphatic hydrocarbon-degrading bacterium, isolated from a sea-tidal flat and emended description of the genus Aliiglaciecola Jean et al. 2013
A Gram-stain-negative heterotrophic bacterium, designated GSD6T, capable of growth on aliphatic hydrocarbons as a sole carbon and energy source, was isolated from sea-tidal flat sediment of the Yellow Sea, South Korea. Cells were facultatively aerobic, catalase- and oxidase-positive, motile rods with a single polar flagellum. Growth of strain GSD6T was observed at 4–37 °C (optimum 30 °C), at pH 5.5–9.0 (optimum pH 6.5–7.5) and in the presence of 1–9 % (w/v) NaCl (optimum 2 %). Strain GSD6T contained ubiquinone-8 (Q-8) as the sole isoprenoid quinone and summed feature 3 (comprising C16 : 1ω7c and/or iso-C15 : 0 2-OH), C16 : 0, C18 : 1ω7c, C17 : 0 10-methyl and C17 : 1ω8c as the major fatty acids. Phosphatidylethanolamine and phosphatidylglycerol were identified as the major polar lipids. The G+C content of the genomic DNA was 44.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain GSD6T formed a phylogenetic lineage with members of the genus Aliiglaciecola. Strain GSD6T was most closely related to Aliiglaciecola lipolytica E3T with a 16S rRNA gene sequence similarity of 97.4 %, but their DNA–DNA hybridization value was 39.1±7.1 %. On the basis of phenotypic, chemotaxonomic and molecular features, strain GSD6T represents a novel species of the genus Aliiglaciecola, for which the name Aliiglaciecola aliphaticivorans sp. nov. is proposed. The type strain is GSD6T ( = KACC 18129T = JCM 30133T). An emended description of the genus Aliiglaciecola is also proposed.
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Funding
This study was supported by the:
National Institute of Biological Resources
(Award 2014-02-001 and 2014-02-066)
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Aliiglaciecola aliphaticivorans sp. nov., an aliphatic hydrocarbon-degrading bacterium, isolated from a sea-tidal flat and emended description of the genus Aliiglaciecola Jean et al. 2013