A Gram reaction-negative, strictly aerobic, non-motile, translucent and rod-shaped bacterium (designated W1-2-4T) isolated from tap water was characterized by a polyphasic approach to clarify its taxonomic position. Strain W1-2-4T was observed to grow optimally at 25–30 °C and at pH 6.5 on nutrient agar. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain W1-2-4T belongs to the genus Sphingomonas and is most closely related to the Sphingomonas fennica K101T (95.3 % similarity). The G+C content of genomic DNA was 67.1 mol%. Chemotaxonomic data [major ubiquinone—Q-10, major polyamine—homospermidine, major fatty acids—summed feature 8 (comprising C18:1ω7c/ω6c), C16:0 and C14:0 2OH] supported the affiliation of strain W1-2-4T to the genus Sphingomonas. Strain W1-2-4T could be differentiated genotypically and phenotypically from the recognized species of the genus Sphingomonas. The novel isolate therefore represents a novel species, for which the name Sphingomonas hankyongensis sp. nov. is proposed, with the type strain W1-2-4T (=KACC 18308T = LMG 28595T).
CITATION STYLE
Yun, S. S., Siddiqi, M. Z., Lee, S. Y., Kim, M. S., Choi, K. D., & Im, W. T. (2016). Sphingomonas hankyongensis sp. nov. isolated from tap water. Archives of Microbiology, 198(8), 767–771. https://doi.org/10.1007/s00203-016-1237-1
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