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Phylum Firmicutes, Class Clostridia, Order Clostridiales, Family Clostridiaceae, Genus Clostridium, Cluster XIVa (non-Clostridium
sensu stricto),
Clostridium celerecrescens  Palop, Valles, Pinaga and Flors 1989 emeded Chamkha, Garcia and Labat 2001.
Gram-positive (decolorize readily in older cultures), straight to slightly curved rods,
0.5-0.8 x 2.0-4.0 µm. Motile by peritrichous flagella. Spores are sphaerical, terminal,
swelling the cell.
Anaerobic. Colonies appear after 10-14 days incubation at 37 ºC and exhibit haloes of
cellulolysis; deep colonies are smooth, circular, translucent, unpigmented, 0.5 mm in
diameter. Grow optimally at 30-37 ºC and pH 7.0. Can grow at 23 ºC.
Isolated from a methanogenic cellulolytic culture inoculated from cow manure.
Not determined.
  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. Chamkha M., Garcia J.-L. and Labat M., 2001. Metabolism of cinnamic acids by some Clostridiales and emendation of the
    descriptions of Clostridium aerotolerans, Clostridium celerecrescens and Clostridium xylanolyticum. IJSEM 51, 2105-2111.
  3. Palop M.L.L., Valles S., Pinaga F. and Flors A., 1989. Isolation and characterization of an anaerobic, cellulolytic bacterium,
    Clostridium celerecrescens sp. nov. IJSB 39, 68-71.
Cellulolytic. The end products of fermentation of cellulose and cellobiose are ethanol,
acetate, formate, butyrate, iosbutyrate, isovalerate, caproate, lactate, succinate, H
2,
and CO
2. Reduces cinnamic acids. Milk reaction is positive (curd is produced).

Positive results for gelatin hydrolysis, indole production, substrate utilized and/or acid produced from: adonitol, arabinose, cellobiose,
cellulose, esculin, fructose, galactose, glucose, lactose (weak),  maltose, (weak), mannitol, mannose, melezitose (weak), melibiose
(weak), raffinose, rhamnose, ribose, sorbose (weak), sucrose (weak), trehalose & xylose.

Negative results for casein hydrolysis, catalase, lecithinase, lipase, nitrate reduction, urease, Voges-Proskauer test, substrate utilized
and/or acid produced from: dulcitol, erythritol, glycerol, inulin, salicin, sorbitol & starch.
Clostridium celerecrescens
(c) Costin Stoica
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