| Clostridium algidixylanolyticum |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Clostridia, Order Eubacteriales, Family Clostridiaceae, Genus Clostridium, Cluster I
(Clostridium sensu stricto), Clostridium algidixylanolyticum Broda, Saul, Bell and Musgrave 2000.
(Clostridium sensu stricto), Clostridium algidixylanolyticum Broda, Saul, Bell and Musgrave 2000.
Gram-negative, tapered rods, 0.5-0.8 x 1.8-2.8 µm, single cells, motile. Elliptical
spores do not swell maternal cells and are produced in the late stationary growth
phase.
spores do not swell maternal cells and are produced in the late stationary growth
phase.
Colonies are 0.8-2.5 mm in diameter, greyish-white, translucent and beta-hemolytic
on sheep-blood agar after 72 h at 26 ºC. Obligately anaerobic. Grows optimally at
2.5-30 ºC (range 2.5-32.2 ºC), and pH 6.8-7.0 (range 4.7-9.1).
on sheep-blood agar after 72 h at 26 ºC. Obligately anaerobic. Grows optimally at
2.5-30 ºC (range 2.5-32.2 ºC), and pH 6.8-7.0 (range 4.7-9.1).
Isolated from vacuum-packed, temperature-abused raw lamb.
Supernatant of the broth culture was not toxic to mice.
- 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. - Broda D.M., Saul D.J., Bell R.G. and Musgrave D.R., 2000. Clostridium algidixylanolyticum sp. nov., a psychrotolerant, xylan-
degrading, spore-forming bacterium. IJSEM 50, 623-631.
Products from PYGS (peptone, yeast extract, glucose, starch) broth are: acetate,
formate, lactate, ethanol, butyrate, butanol, hydrogen and carbon dioxide. Milk reaction
is negative. Meat and casein are not digested. Saccharoclastic.
Positive results for H2 production, H2S production, starch hydrolysis, xylan degradation, substrate utilization and/or acid production
from: arabinose, cellobiose, fructose, galactose, glucose, inulin, lactose, maltose, mannose, raffinose, rhamnose, salicin, sucrose &
xylose.
Negative results for catalase, indole production, esculin hydrolysis, gelatin hydrolysis, lecithinase, lipase, nitrate reduction, oxidase,
urease, substrate utilization and/or acid production from: adonitol, dextran, esculin, inositol, mannitol, sorbitol, sorbose & trehalose.
formate, lactate, ethanol, butyrate, butanol, hydrogen and carbon dioxide. Milk reaction
is negative. Meat and casein are not digested. Saccharoclastic.
Positive results for H2 production, H2S production, starch hydrolysis, xylan degradation, substrate utilization and/or acid production
from: arabinose, cellobiose, fructose, galactose, glucose, inulin, lactose, maltose, mannose, raffinose, rhamnose, salicin, sucrose &
xylose.
Negative results for catalase, indole production, esculin hydrolysis, gelatin hydrolysis, lecithinase, lipase, nitrate reduction, oxidase,
urease, substrate utilization and/or acid production from: adonitol, dextran, esculin, inositol, mannitol, sorbitol, sorbose & trehalose.
(c) Costin Stoica
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