| Abstract |
Two strains, designated K2814(T) and K282, were isolated from a compost pile in Japan. These strains were Gram-stain-variable, aerobic, motile and endospore-forming rods. The strains produced a characteristic brown non-diffusible pigment. The 16S rRNA gene sequences of the strains were 100% identical and had high similarity to that of Brevibacillus levickii LMG 22481(T) (97.3%). Phylogenetic analyses based on 16S rRNA gene sequences revealed that these strains belong to the genus Brevibacillus. Strains K2814(T) and K282 contained meso-diaminopimelic acid in their cell walls. Strains K2814(T) and K282 contained MK-7 (96.0 and 97.2%, respectively) and MK-8 (4.0 and 2.8%, respectively) as the major and minor menaquinones, respectively. Their major cellular fatty acids were anteiso-C(15 : 0), anteiso-C(17 : 0), iso-C(15 : 0) and iso-C(17 : 0). The DNA G+C contents of strains K2814(T) and K282 were 48.8 and 49.8 mol%, respectively. Polar lipids of strain K2814(T) were composed of phosphatidyl-N-methylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine, an unidentified phospholipid, three unidentified polar lipids, an unidentified aminophospholipid and an unidentified aminolipid. The level of DNA-DNA relatedness between strains K2814(T) and K282 was 99 or 100%, and levels between strain K2814(T) and the type strains of seven related species of the genus Brevibacillus, including Brevibacillus levickii LMG 22481(T), were below 59%. From the chemotaxonomic and physiological data and the levels of DNA-DNA relatedness, these two strains should be classified as representing a novel species of the genus Brevibacillus, for which the name Brevibacillus fulvus sp. nov. (type strain K2814(T) = JCM 18162(T) = ATCC BAA-2417(T) = DSM 25523(T)) is proposed.
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