Abstract
A non-pigmented, Gram-negative, aerobic, rod-shaped bacterium, strain GR13(T), was isolated using nutrient agar from a water sample from a pond used for the culture of soft-shell turtles (Trionyx sinensis), Pingtung County, Taiwan. 16S rRNA gene sequence studies indicated that the novel strain formed a monophyletic branch at the periphery of the evolutionary radiation occupied by the genus Vogesella. Its closest neighbours were Vogesella indigofera ATCC 19706(T) and Vogesella perlucida DS-28(T) (both with 97.4 % gene sequence similarity). The novel isolate could be distinguished from these species by several phenotypic characteristics. The predominant fatty acids were summed feature 3 (C(16 : 1)omega7c and/or C(15 : 0) iso 2-OH; 60 %), C(16 : 0) (13.6 %) and C(18 : 1)omega7c (12.5 %). The DNA G+C content of strain GR13(T) was 63 mol%. The DNA-DNA hybridization values for the novel strain with V. indigofera and V. perlucida were <25 %. On the basis of the 16S rRNA gene sequence analysis and the chemotaxonomic and physiological data, it is concluded that strain GR13(T) represents a novel species in the genus Vogesella, for which the name Vogesella lacus sp. nov. is proposed. The type strain is GR13(T) (=BCRC 17836(T)=LMG 24504(T)).
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