sp. nov., isolated from riverside soil.

A novel Gram-stain-negative, yellow-pigmented, non-motile and rod-shaped bacterial strain designated MMS21-Er5 was isolated and subjected to polyphasic taxonomic characterization. MMS21- Er5 could grow at 4-34 °C (optimum, 30 °C), at pH 6-8 (optimum, pH 7) and in the presence of 0-2% NaCl (optimum, 1 %). The results of phylogenetic analysis based on 16S rRNA gene sequences indicated that MMS21- Er5 showed low levels of sequence similarities with other species, as the highest similarity of 97.83 % was observed with THG DN8.8, then 97.68 % with '' DCY 55 and 97.63 % with 15F3, which were well below the suggested cutoff for species distinction. The whole genome sequence of MMS21-Er5 consisted of a single contig of 5.63 Mbp, and the DNA G+C content was 34.06 mol%. The DNA-DNA hybridization and orthologous average nucleotide identity values were highest with KCTC 42726 (45.7 and 91.92% respectively). The predominant respiratory quinone for the strain was menaquinone-6 (MK-6), the major cellular fatty acid was iso-C, and the diagnostic polar lipids were phosphatidylethanolamine and phosphatidyldiethanolamine. The combination of physiological and biochemical tests clearly distinguished the strain from related species of the genus . On the basis of these results, strain MMS21-Er5 evidently represents a novel species of the genus for which the name sp. nov. is proposed (type strain=MMS21-Er5=KCTC 92256 =LMG 32524).