Ferrimonas sediminicola sp. nov., Isolated from Tidal Flat Sediment

초록

A Gram-stain-negative, rod-shaped, facultatively anaerobic and motile by a polar flagellum bacterium, designated strain IMCC35001T, was isolated from tidal flat sediment of the Yellow sea, South Korea. Optimal growth of strain IMCC35001T was observed at 30°C, at pH 7.0 and with 2% (w/v) NaCl. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that strain IMCC35001T belonged to the genus Ferrimonas and shared 94.6-98.8% sequence similarities with Ferrimonas species. Whole genome sequencing of strain IMCC35001T revealed genome size of 3.97 Mbp and DNA G+C content of 61.0 mol%. The IMCC35001 genome shared the average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) of 70.0-84.4 and 19.6-27.8%, respectively, with other Ferrimonas genomes. The strain contained iso-C15:0 (16.2%), C18:1 ω9c (14.4%), C17:1 ω8c (11.3%), and C16:0 (10.7%) as the major fatty acids, and MK-7, Q-7, and Q-8 as the major respiratory quinones. The polar lipids detected in the strain were phosphatidylethanolamine, phosphatidylglycerol, and two unidentified aminolipids. On the basis of phylogenetic distinction and differential phenotypic characteristics, strain IMCC35001T is considered to represent a novel species of the genus Ferrimonas, for which the name Ferrimonas sediminicola (type strain IMCC35001T= KACC 21161T = NBRC 113699T) sp. nov. is proposed.