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Phylum Firmicutes, Class Clostridia, Order Clostridiales, Family Clostridiaceae, Genus Clostridium, Cluster I (Clostridium sensu
stricto),
Clostridium disporicum  Horn 1987.
Gram-positive rods, 1.5 x 2.5-10 µm. Nonmotile. Spores are oval, subterminal; some
cells form two spores.
Obligate anaerobe. Alpha-hemolytic colonies. Fermentable carbohydrates are
required for growth. Ferments glucose to acetic and lactic acid. Growth temperature
22-44 ºC, optimum 25-26 ºC.
Isolated from a slurry of rat cecal contents.
Undetermined.
  1. N.A. Logan and P. De Vos, 2009. Genus I. Clostridium Prazmowski 1880. In: (Eds.) P.D. Vos, G. Garrity, D. Jones, N.R. Krieg, W.
    Ludwig, F.A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3: The Firmicutes,
    Springer, 738-828.
  2. Horn N., 1987. Clostridium disporicum sp. nov., a Saccharolytic Species Able to Form Two Spores per Cell, Isolated from a Rat
    Cecum. IJSB 37, 4, 398-401.
Milk reaction and meat digestion are negative.

Positive results for esculin hydrolysis, starch hydrolysis, substrate utilized and/or acid
produced from: cellobiose, dulcitol, esculin, fructose, galactose, glucose, lactose,
maltose, mannitol, mannose, melibiose, raffinose, ribose, salicin, starch, sucrose,
trehalose & xylose.

Negative results for catalase, H
2 production, gelatin hydrolysis, indole production, lecithinase, lipase, substrate utilized and/or acid
produced from: arabinose, inositol, melezitose, rhamnose & sorbitol.
Clostridium disporicum
(c) Costin Stoica
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