SPORE-BEARING LACTIC ACID BACTERIA ISOLATED FROM RHIZOSPHERE

II. TAXONOMIC STUDIES ON THE CATALASE-NEGATIVE STRAINS

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Seven strains of catalase-negative, spore-bearing, lactic acid-producing bacteria were isolated from rhizosphere of various wild plants. They are mesophilic, facultatively anaerobic, gram-positive rods with peritrichous flagella and oval endospores at terminal to sub-terminal, and produce dl-lactic acid from glucose, fructose, sucrose, trehalose, and inulin in the homo-fermentative way, lowering the pH value of the medium to 3.8-3.2.
Among the hitherto known organisms, only Sporolactobacillus inulinus KITAHARA et al. may be the closely related species to the new isolates.