Effusibacillus dendaii sp. nov. isolated from farm soil

A Gram-positive, rod-shaped, spore-forming, thermophilic, and acidophilic bacterium, designated as strain skT53(T), was isolated from farm soil in Tokyo, Japan. Under aerobic conditions, the strain grew at 35–55 °C (optimum temperature 44–55 °C) and pH 4.0–6.0 (optimum pH 5.0). Phylogenetic analysis of the 16S rRNA gene sequence showed that the isolate was moderately related to the type strain of Effusibacillus consociatus (94.3% similarity). The G + C content of the genomic DNA was 48.2 mol%, and MK-7 was the predominant respiratory quinone in the strain. The major fatty acids were anteiso-C(15:0), iso-C(15:0), and iso-C(16:0). Based on the phenotypic and chemotaxonomic characteristics, as well as 16S rRNA gene sequence similarity and whole genome analyses, strain skT53(T) represents a novel species in the genus Effusibacillus, for which the name Effusibacillus dendaii sp. nov. has been proposed. The type strain is skT53(T) (= NBRC 114101( T) = TBRC 11241( T)). SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00203-021-02470-9.