Mucilaginibacter gotjawali sp nov., isolated from soil of a lava forest

A novel bacterial strain, designated SA3-7(T), was isolated from soil of a lava forest located in Jeju, Republic of Korea. Cells of strain SA3-7(T). were Gram-stain-negative, oxidase- and catalase-positive, non-motile rods and produced creamy white colonies on ten-fold-diluted R2A agar. The isolate contained menaquinone-7 (MK-7) as the predominant isoprenoid quinone and summed feature 3 (C-16:1 omega 7c/C-16:1 omega 6c), iso-C-15:0 and iso-C-17:0 3-OH as the major fatty acids. The DNA G+C content was 43.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequencing showed that strain SA3-7(T) was related most closely to Mucilaginibacter frigoritolerans FT22(T) (96.7 % sequence similarity) and that it formed a separate lineage in the genus Mucilaginibacter. Combined phenotypic, chemotaxonomic and phylogenetic characteristics supported the conclusion that strain SA3-7(T) represents a novel species of the genus Mucilaginibacter, for which the name Mucilaginibacter gotjawali sp. nov. is proposed; the type strain is SA3-7(T) (=KCTC 32515(T)=CECT 8628(T)=DSM 29289(T)).