Flavisolibacter Metallilatus Sp Nov., Isolated From An Automotive Air Conditioning System And Emended Description Of The Genus Flavisolibacter
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY(2018)
Abstract
A Gram-stain-negative, aerobic, non-motile, rod-shaped and pale yellow-pigmented bacterium, designated strain TX0661(T), was isolated from an automotive air conditioning system collected in the Republic of Korea. 16S rRNA gene sequence analysis showed that the strain TX0661(T) was grouped with members of the genus Flavisolibacter and the strain had 98.2-95.3 % 16S rRNA gene sequence similarities to the species of the genus Flavisolibacter. DNA-DNA relatedness between TX0661(T) and Flavisolibacter ginsenosidimutans KCTC 22818(T) and Flavisolibacter ginsengisoli KCTC 12657(T) was less than 30 %. The low levels of DNA-DNA relatedness identified strain TX0661(T) as a novel species in the genus Flavisolibacter. The strain grew at 28-37 degrees C (optimum, 37 degrees C), at pH 6.0-7.0 (optimum, pH 6.5) and in the presence of 0-0.5 % (w/v, optimum, 0.5 %) NaCl. It contained summed feature 3 (C-16:1 omega 7c and/or C-16:1 omega 6c), iso-C-15:0 and iso-C-17:0 3-OH as major fatty acids and MK-7 as the predominant menaquinone. The polar lipid profile revealed that the presence of phosphatidylethanolamine, aminoglycophospholipid, two unidentified aminolipids and two unidentified lipids. The DNA G+C content of the strain was 49.1 mol%. Based on phenotypic, genotypic and chemotaxonomic data, strain TX0661(T) represents a novel species in the genus Flavisolibacter, for which the name Flavisolibacter metallilatus sp. nov. (=KACC 19145(T)=KCTC 52779(T)=NBRC 111784(T)) is proposed.
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Key words
Flavisolibacter metallilatus, Bacteroidetes, novel species, polyphasic taxonomy
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