| Clostridium hylemonae |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Clostridia, Order Clostridiales, Family Clostridiaceae, Genus Clostridium, Cluster XIVa (Clostridium non
sensu stricto), Clostridium hylemonae Kitahara, Takamine, Imamura and Benno 2000.
sensu stricto), Clostridium hylemonae Kitahara, Takamine, Imamura and Benno 2000.
Gram-positive, straight to slightly curved rods, 0.2-0.5 x 1.0-5.3 µm, occuring singly or
in pairs. Nonmotile. Can produce spores.
in pairs. Nonmotile. Can produce spores.
Obligate anaerobe. Colonies are 0.5-1.0 mm in diameter, disc-shaped, and gray.
Optimum temperature for growth is 37 ºC. Optimum pH 7.6. Acetic,butyric, propionic,
isobutyric and iso-valeric acid are produced as the end products in
peptone-yeast-extract medium supplemented with glucose.
Optimum temperature for growth is 37 ºC. Optimum pH 7.6. Acetic,butyric, propionic,
isobutyric and iso-valeric acid are produced as the end products in
peptone-yeast-extract medium supplemented with glucose.
Isolated from healthy human feces.
Undetermined.
- 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. - Kitahara M., Takamine F., Imamura T. and Benno Y., 2000. Assignment of Eubacterium sp. VPI 12708 and related strains with
high bile acid 7α-dehydroxylating activity to Clostridium scindens and proposal of Clostridium hylemonae sp. nov., isolated from
human faeces. IJSEM 50, 971-978.
Positive for H2S production, substrate utilization and/or acid production from galactose,
glucose, raffinose & sucrose.
Negative results for esculin hydrolysis, gelatin hydrolysis, indole production, lipase, nitrate reduction, starch hydrolysis, substrate
utilization and/or acid production from: adonitol, amygdalin, cellobiose, dulcitol, erythritol, esculin, glycogen, glycerol, inositol, inulin,
lactose, mannitol, mannose, melezitose, melibiose, rhamnose, salicin, sorbitol, sorbose, starch & trehalose.
Variable results for substrate utilization and/or acid production from: arabinose, fructose, maltose, ribose & xylose.
glucose, raffinose & sucrose.
Negative results for esculin hydrolysis, gelatin hydrolysis, indole production, lipase, nitrate reduction, starch hydrolysis, substrate
utilization and/or acid production from: adonitol, amygdalin, cellobiose, dulcitol, erythritol, esculin, glycogen, glycerol, inositol, inulin,
lactose, mannitol, mannose, melezitose, melibiose, rhamnose, salicin, sorbitol, sorbose, starch & trehalose.
Variable results for substrate utilization and/or acid production from: arabinose, fructose, maltose, ribose & xylose.
(c) Costin Stoica
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