Pseudomaricurvus alcaniphilus sp nov., a marine bacterium isolated from tidal flat sediment and emended descriptions of the genus Pseudomaricurvus, Pseudomaricurvus alkylphenolicus Iwaki et al. 2014 and Maricurvus nonylphenolicus Iwaki et al. 2012

Abstract

A novel Gram-reaction-negative, rod-shaped, aerobic and motile strain, designated MEBiC06469(T), was isolated from tidal flat sediment of the Taean province, South Korea. Strain MEBiC06469(T) produced ivory-coloured colonies on marine agar 221 6 medium and could degrade carboxymethyl-cellulose. On the basis of 16S rRNA gene sequence similarity, the closest relative was Pseudomaricurvus alkylphenolicus KU41G(T) with 96.5 % similarity. The isolate was catalase-positive but oxidase-negative. Growth was observed at 16-38 degrees C (optimum, 32 degrees C), at pH 6.0-9.0 (optimum, pH 7.5) and in the presence of 0.0-8.0 % (w/v) NaCl (optimum, 1.5 %). The only isoprenoid quinone was Q-8.The dominant fatty acids were summed feature 3 (comprised of C-15 : 0 2-OH and/or C-16 : 1 omega 7c; 20.4% and C-17 : 1 omega 8c (30.9 %), summed feature 8 (comprised of C-18 : 1 omega 7c and/or C-18 : 1 omega 6c; 9.5 %), C-16 :0 (9.0 %), C-15 : 1 omega 8C (5.3 %), and C-11 : 0 3-OH (5.2 %). Based on these phenotypic properties and phylogenetic data, strain MEBiC06469(T) should be classified as a novel species within the genus Pseudomaricurvus for which the name Pseudomaricurvus alcaniphilus sp. nov. is proposed. The type strain is MEBiC06469(T) (=KCCM 42976(T)=JCM 18313(T)). Emended descriptions of the genus Pseudomaricurvus, Pseudomaricurvus alkylphenolicus Iwaki et al. (C) 2014, and Maricurvus nonylphenolicus lwaki et al. 2012 are also provided.