Marinibacillus campisalis sp. nov., a moderate halophile isolated from a marine solar saltern in Korea, with emended description of the genus Marinibacillus

A Gram-positive, motile, round to ellipsoidal, endospore-forming, rod-shaped bacterial strain, SF-57^T, was isolated from a marine solar saltern in Korea. This organism grew between 4 and 39 ° C, with optimum growth at 30 °C. Strain SF-57^T grew in the presence of 0.5-15.0% NaCl, with optimum growth at 2-3% NaCl. The peptidoglycan type of strain SF-57^T was A1α linked directly through L-Lys. In strain SF-57^T, menaquinone-7 (MK-7 was the predominant isoprenoid quinone and anteiso-C_15:0 was the major fatty acid. The DNA G+C content was 41.8 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain SF-57^T formed a coherent cluster with Marinibacillus marinus, with a bootstrap resampling value of 100%. The level of 16S rRNA gene sequence similarity between strain SF-57^T and M. marinus DSM 1297^T was 98.9%. The mean DNA-DNA relatedness level between strain SF-57^T and the type strain of M. marinus was 20.6%. Based on phenotypic properties, phylogenetic analyses and genomic data, strain SF-57^T merits placement in the genus Marinibacillus as a representative of a novel species, for which the name Marinibacillus campisalis sp. nov. is proposed. The type strain is SF-57^T (=KCCM 41644^T =JCM 11810^T).