Flavobacterium dispersum sp. nov., isolated from a freshwater spring

Abstract

A novel bacterial strain MVW-23 was isolated from a freshwater spring in Taiwan. The strain was Gram-staining-negative, strictly aerobic, motile by gliding, rod-shaped and formed translucent yellow colonies. Optimal growth occurred at 20-30 °C, pH 7.0, and in the presence of 0.5-1 % NaCl. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain MVW-23 belonged to the genus Flavobacterium and showed the highest levels of sequence similarity with respect to Flavobacterium denitrificans ED5 (97.3 %), Flavobacterium kyungheense THG-107 (97.2 %) and Flavobacterium defluvii EMB117 (97.0 %). Strain MVW-23 contained iso-C15 : 0, summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c) and iso-C17 : 0 3-OH as the predominant fatty acids. The polar lipid profile consisted of phosphatidylethanolamine, three uncharacterized aminophospholipids and one uncharacterized phospholipid. The major polyamine was homospermidine. The major isoprenoid quinone was MK-6. The DNA G+C content of the genomic DNA was 39.9 mol%. The DNA-DNA hybridization value for strain MVW-23 with F. denitrificans DSM 15936, F. kyungheense LMG 26575 and F. defluvii DSM 17963 was less than 35 %. Differential phenotypic properties, together with the phylogenetic inference, demonstrate that strain MVW-23 should be classified as a novel species of the genus Flavobacterium, for which the name Flavobacterium dispersum sp. nov. is presented. The type strain is MVW-23 (=BCRC 80978=LMG 29558=KCTC 52234).

Corrigendum: Correction to manuscripts describing the fatty acid composition of organisms submitted to IJSEM between 2014 and 2021

“…The previously published articles listed in the References [1–50] contained the phrase ‘Summed features are groups of two or three fatty acids that are treated together for the purpose of evaluation in the MIDI system and include both peaks with discrete ECLs as well as those where the ECLs are not reported separately’, which was taken from and consequently should have cited the following article:…”