Fulvivirga lutimaris sp. nov., isolated from a tidal flat sediment

Abstract

A Gram-stain-negative, non-flagellated, non-gliding and rod-shaped bacterial strain, designated TM-6T, was isolated from a tidal flat sediment in the Korean peninsula. Strain TM-6Twas found to grow optimally at pH 7.0-8.0, at 30 °C and in the presence of 2-3% (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain TM-6Tjoined the clade comprising recognized species of the genus Fulvivirga, with which it exhibited 94.7-95.2 % sequence similarity. Strain TM-6Twas found to contain iso-C15: 0, iso-C15: 1G and iso-C17: 03-OH as major fatty acids. The only isoprenoid quinone was menaquinone-7 (MK-7). The major polar lipids were identified as phosphatidylethanolamine and three unidentified lipids. The DNA G+C content of strain TM-6Twas 50.9 mol%. Differential phenotypic properties, together with the phylogenetic distinctiveness, revealed that strain TM-6Tis distinguishable from recognized Fulvivirgaspecies. On the basis of the data presented, strain TM-6Tis proposed to represent a novel species of the genus Fulvivirga, for which the name Fulvivirga lutimaris sp. nov. is proposed. The type strain is TM-6T(=KCTC 42720T=CECT 9024T).