| Clostridium caenicola |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Clostridia, Order Eubacteriales, Family Clostridiaceae, Genus Clostridium, Cluster III
(non-Clostridium sensu stricto), Clostridium caenicola Shiratori, Sasaya, Ohiwa, Ikeno, Ayame, Kataoka, Miya, Beppu and Ueda 2009.
(non-Clostridium sensu stricto), Clostridium caenicola Shiratori, Sasaya, Ohiwa, Ikeno, Ayame, Kataoka, Miya, Beppu and Ueda 2009.
Gram-negative, straight or slightly curved rods, 0.4-0.6 x 1.8-4.8 µm. Motile by a few
flagella at a polar attachament point (lophotrichously flagellated). Spores are oval,
terminally located.
flagella at a polar attachament point (lophotrichously flagellated). Spores are oval,
terminally located.
Colonies are glossy white in colour on solid agar containing cellobiose as a carbon
source. Colony formation is observed under anaerobic conditions. Obligately
anaerobic, thermophilic and chemo-organotrophic. Grow in 0-1.5% NaCl , optimum in
1.0% NaCl medium. Grow at 50-70 ºC, optimally at 60 ºC. Optimum pH 6.5; range
6.0-8.0. Fermentation products are hydrogen, carbon dioxide, acetate, lactate and
ethanol.
source. Colony formation is observed under anaerobic conditions. Obligately
anaerobic, thermophilic and chemo-organotrophic. Grow in 0-1.5% NaCl , optimum in
1.0% NaCl medium. Grow at 50-70 ºC, optimally at 60 ºC. Optimum pH 6.5; range
6.0-8.0. Fermentation products are hydrogen, carbon dioxide, acetate, lactate and
ethanol.
Isolated from anaerobic sludge of a cellulose-degrading methanogenic bioreactor.
Undetermined.
- Shiratori H., Sasaya K., Ohiwa H., Ikeno H., Ayame S., Kataoka N., Miya A., Beppu T. and Ueda K., 2009. Clostridium clariflavum sp.
nov. and Clostridium caenicola sp. nov., moderately thermophilic, cellulose-/cellobiose-digesting bacteria isolated from
methanogenic sludge. IJSEM 59, 1764-1770.
Positive results for H2 production, esculin hydrolysis, substrate utilized and/or acid
produced from: amygdalin, arabinose, cellobiose, glucose, maltose, mannitol, salicin
& starch.
Negative results for casein hydrolysis, catalase, gelatin hydrolysis, indole production, lecithinase, lipase, nitrate reduction, substrate
utilized and/or acid produced from: adonitol, cellulose, dulcitol, erythritol, fructose, galactose, glycogen, glycerol, inositol, inulin,
lactose, mannose, melezitose, melibiose, raffinose, rhamnose, ribose, sorbitol, sorbose, sucrose, trehalose, xylose & xylitol.
produced from: amygdalin, arabinose, cellobiose, glucose, maltose, mannitol, salicin
& starch.
Negative results for casein hydrolysis, catalase, gelatin hydrolysis, indole production, lecithinase, lipase, nitrate reduction, substrate
utilized and/or acid produced from: adonitol, cellulose, dulcitol, erythritol, fructose, galactose, glycogen, glycerol, inositol, inulin,
lactose, mannose, melezitose, melibiose, raffinose, rhamnose, ribose, sorbitol, sorbose, sucrose, trehalose, xylose & xylitol.
(c) Costin Stoica
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