Clostridium aldenense
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Clostridia, Order Clostridiales, Family Clostridiaceae, Genus Clostridium, Cluster I (Clostridium sensu
stricto),
Clostridium aldenense  Warren, Tyrrell, Citron and Goldstein 2007.
Gram-negative rods, 0.8-1.1 x 2-5 µm,  spores only rarely formed.
Colonies are 1–2 mm in diameter, flat, opaque to white, and nonhemolytic on
Brucella blood agar plates after 48 hours incubation at 37 ºC.
Isolated from human clinical infections.
Isolated from human clinical infections.
  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. 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, alpha-galactosidase, beta-galactosidase,
substrate utilization and/or acid production from: glucose, maltose, mannose,
raffinose, sucrose & xylose.

Negative results for nitrate reduction, gelatin hydrolysis, starch hydrolysis, urease,
arginine dihydrolase, alpha-glucosidase, beta-glucosidase, substrate utilization
and/or acid production from: cellobiose, esculin, mannitol, melezitose, rhamnose, sorbitol & starch.

Variable results for esculin hydrolysis, alkaline phosphatase, substrate utilization and/or acid production from: arabinose, lactose,
salicin & trehalose.
(c) Costin Stoica
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