RT Journal Article SR Electronic(1) A1 Ueki, Atsuko A1 Goto, Kazushi A1 Kaku, Nobuo A1 Ueki, KatsujiYR 2018 T1 Aminipila butyrica gen. nov., sp. nov., a strictly anaerobic, arginine-decomposing bacterium isolated from a methanogenic reactor of cattle waste JF International Journal of Systematic and Evolutionary Microbiology, VO 68 IS 1 SP 443 OP 448 DO https://doi.org/10.1099/ijsem.0.002534 PB Microbiology Society, SN 1466-5034, AB A strictly anaerobic bacterial strain (FH042T) was isolated from a methanogenic reactor treating waste from cattle farms. Cells were stained Gram-positive, straight to gently curved rods with polar flagella. The strain was asaccharolytic. The strain fermented amino acids (l-arginine, l-lysine and l-serine) as growth substrates and produced acetate and butyrate. The optimum temperature for growth was 30 °C and the optimum pH was 6.1–6.8. Oxidase, catalase and nitrate-reducing activities were negative. Hydrogen sulfide was produced. The genomic DNA G+C content of strain FH042T was 44.7±0.2 mol%. The major cellular fatty acids were C18 : 1ω9c DMA, C17 : 2/C17 : 1ω9c (as summed feature), C16 : 0 DMA and C14 : 0. The cell-wall peptidoglycan contained meso-diaminopimelic acid as a diagnostic amino acid. The most closely related described species on the basis of 16S rRNA gene sequences was Anaerovorax odorimutans in the family XIII Incertae Sedis in the order Clostridiales of the class Clostridia with sequence similarity of 95.1 %. Based on the distinct differences in phylogenetic and phenotypic characteristics between strain FH042T and related species, Aminipila butyrica gen. nov., sp. nov. is proposed to accommodate the strain. Type strain is FH042T (=JCM 31555T=DSM 103574T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.002534