| Clostridium citroniae |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
PPhylum Bacillota (Firmicutes), Class Clostridia, Order Eubacteriales, Family Clostridiaceae, Genus Clostridium, Cluster I
(Clostridium sensu stricto), Clostridium citroniae Warren, Tyrrell, Citron and Goldstein 2007.
(Clostridium sensu stricto), Clostridium citroniae Warren, Tyrrell, Citron and Goldstein 2007.
Gram-negative rods, 0.8-1.1 x 2-5 µm. Spores are rarely observed.
Colonies are 1-2 mm in diameter, flat, opaque to white, and non-haemolytic on
Brucella blood agar plates after 48 hours incubation at 37 ºC.
Brucella blood agar plates after 48 hours incubation at 37 ºC.
Isolated from human clinical infections.
Isolated from human clinical infections.
- 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. - Warren Y.A., Tyrrell L., Citron D.M. and Goldstein E.J.C., 2006. Clostridium aldenense sp. nov. and Clostridium citroniae sp. nov.
Isolated from Human Clinical Infections. J.Clin. Microb. 44,7, 2416-2422.
Positive results for indole production, alkaline phosphatase, substrate utilization
and/or acid production from: glucose, maltose, mannose, rhamnose, sucrose,
trehalose & xylose.
Negative results for arginine dihydrolase, alpha-galactosidase, beta-galactosidase,
alpha-glucosidase, beta-glucosidase, nitrate reduction, esculin hydrolysis, gelatin hydrolysis, starch hydrolysis, urea hydrolysis,
substrate utilization and/or acid production from: cellobiose, esculin, mannitol, melezitose, raffinose, salicin, sorbitol & starch.
Variable results for substrate utilization and/or acid production from arabinose & lactose.
and/or acid production from: glucose, maltose, mannose, rhamnose, sucrose,
trehalose & xylose.
Negative results for arginine dihydrolase, alpha-galactosidase, beta-galactosidase,
alpha-glucosidase, beta-glucosidase, nitrate reduction, esculin hydrolysis, gelatin hydrolysis, starch hydrolysis, urea hydrolysis,
substrate utilization and/or acid production from: cellobiose, esculin, mannitol, melezitose, raffinose, salicin, sorbitol & starch.
Variable results for substrate utilization and/or acid production from arabinose & lactose.
(c) Costin Stoica
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