Actinobacillus muris
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus Actinobacillus,  
Actinobacillus muris  Bisgaard 1988.
Synonyms: Streptobacillus moniliformis, Bisgaard taxon 12.
Gram-negative cells, nonmotile, rod-shaped.
Colonies are circular, low convex and regular with an entire margin; the surface of the
colonies is smooth, shiny, grayish and opaque 1.5-2.0 mm in diameter after 24 h and
3.5-4.0 mm after 48 h at  37 ºC. Hemolysis is negative. V-factor independent. Growth
on Mac Conkey agar is negative.
Is a normal component of the oropharyngeal and genital tract flora of laboratory white mice.
  1. Olsen I., Moller K., 2004. Genus II. Actinobacillus. In: Bergey’s Manual of Systematic Bacteriology, Second edition, Vol two, part B,
    George M. Garrity (Editor-in-Chief), pp. 866-883.
  2. W.M. Janda, R. Mutters, 2006. Pasteurella, Mannheimia, Actinobacillus, Eikenella, Kingella, Capnocytophaga, and other
    miscellaneous Gram-negative rods. In: Topley & Wilson’s Microbiology and Microbial Infections, 10 edition, Vol. 2, Bacteriology,
    Edward Arnold Ltd.
  3. J. G. Holt et al., 1994. Facultatively Anaerobic Gram-Negative Rods. Subgroup 3. Family Pasteurellaceae. In: Begey’s Manual of
    Determinative Bacteriology, 9th-edition, Williams & Wilkins, pp 194-196.
Positive results for nitrates reduction, catalase, oxidase, urease, acid production from:
cellobiose, D(-) fructose, L(-) fucose, D(+) glucose (without gas), D(+) mannose,
mannitol, maltose, melibiose, sucrose, trehalose, raffinose, esculin & salicin.

Negative results for alkaline phosphatase, gelatinase, H
2S production, ONPG, Voges-
Proskauer reaction, arginine dehydrolase, lysine decarboxylase, ornithine decarboxylase, indole production, acid production from:
L(+) arabinose, D(+) xylose, dulcitol, meso-inositol, D(-) sorbitol, D(+) galactose, L(+) rhamnose, L(-) sorbose, lactose, dextrin & inulin.

Acid production from glycerol is variable.
(c) Costin Stoica
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Isolated from the pharynx, uterus, and vagina of mice.