RANK: Genus

TAXONOMY: Bacteria -> Terrabacteria group -> Firmicutes -> Bacilli -> Bacillales -> Sporolactobacillaceae -> Sporolactobacillus


Cells are straight rods, 0.4–1.0 × 2.0–4.0 µm, occurring singly, in pairs, and, rarely, in short chains. Endospores are formed that are resistant to heating at 80°C for 10 min. Gram-stain-positive. Mostly motile by peritrichous flagella. Facultatively anaerobic or microaerophilic; good growth occurs on media containing glucose, but poor or no growth occurs in nutrient broth; d- or dl-lactic acid is produced homofermentatively; catalase negative; does not contain cytochromes. Mesophilic. Acid is produced from glucose, fructose, galactose, mannose, maltose, sucrose, and trehalose. The cell wall contains meso-diaminopimelic acid (meso-DAP). The predominant isoprenoid quinone is a menaquinone with seven isoprene units (MK-7). Ubiquinone is not detected. The cellular fatty acids comprise predominantly 12-methyl tetradecanoic acid (C15:0 ante) and 14-methyl hexadecanoic acid (C17:0 ante), with 13-methyl tetradecanoic acid (C15:0 iso) and 14-methyl pentadecanoic acid (C16:0 iso) as minor components.

DNA G+C content (mol%): 43–50 (Tm).

Type species: Sporolactobacillus inulinus