Brevundimonas viscosa sp. nov., isolated from saline soil

Abstract

A Gram-negative, rod-shaped bacterial strain, designated F3T, was isolated from a saline soil sample in China and studied by using a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain F3T was affiliated with the genus Brevundimonas , with Brevundimonas kwangchunensis KSL-102T (98.4 % similarity) and Brevundimonas alba DSM 4736T (98.2 %) as its closest relatives. Strain F3T contained ubiquinone-10 (Q-10) as the predominant ubiquinone and C18 : 1ω7c, C17 : 1ω8c and C16 : 0 as the major fatty acids. The DNA G+C content of strain F3T was 66.7 mol%. Levels of DNA–DNA relatedness between strain F3T and the type strains of closely related Brevundimonas species were below 22 %. On the basis of phenotypic characteristics and genotypic distinctiveness, strain F3T should be classified as representing a novel species of the genus Brevundimonas , for which the name Brevundimonas viscosa sp. nov. is proposed. The type strain is F3T ( = CGMCC 1.10683T = JCM 17426T).