Description of Luteimonas pelagia sp. nov., isolated from marine sediment, and emendation of Luteimonas aquatica, Luteimonas composti, Luteimonas mephitis, Lysobacter enzymogenes subsp. enzymogenes and Lysobacter panaciterrae

Abstract

An aerobic, Gram-stain-negative, non-motile and rod-shaped bacterium, designated strain CC-VAM-7T, was isolated from a marine sediment sample collected at Kending, Taiwan. The isolate grew optimally at pH 7.0, 30ºС and in the presence of 4% (w/v) NaCl. The most closely related strains in terms of 16S rRNA gene sequence similarity were Luteimonas huabeiensis (95.2%) and Lysobacter defluvii (95.0%). Phylogenetic analyses based on 16S rRNA genes revealed that the strain CC-VAM-7T clustered with Luteimonas species. Strain CC-VAM-7T was determined to possess C15:1 ω5c, C16:1 ω5c, C11:0 iso, C15:0 iso, C16:0 iso, C17:0 iso, C11:0 iso 3OH and C16:0 10-methyl/C17:1 iso ω9c as predominant fatty acids. The polar lipid profile contained major amounts of diphosphatidylglycerol, phosphatidylmonomethylethanolamine, phosphatidylglycerol and phosphatidylethanolamine and moderate amounts of an unidentified phospholipid. The genomic DNA G+C content was 73.4 mol%; ubiquinone (Q-8) was the predominant respiratory quinone. According to distinct phylogenetic, phenotypic and chemotaxonomic features, which were in line with Luteimonas species, strain CC-VAM-7T is proposed to represent a novel species within the genus Luteimonas, for which the name Luteimonas pelagia sp. nov. is proposed. The type strain is CC-VAM-7T (=BCRC 80558T =JCM 18792T). In addition, we propose for the emended description of Luteimonas aquatica (Chou et al., 2008), Luteimonas composti (Young et al., 2007), Luteimonas mephitis (Finkmann et al., 2000), Lysobacter enzymogenes subsp. enzymogenes (Christensen & Cook, 1978) and Lysobacter panaciterrae (Ten et al., 2009).