Actinobacillus indolicus
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
See also
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus Actinobacillus,
Actinobacillus indolicus  Moller, Fussing, Grimont, Paster, Dewhirst and Kilian, 1996.
Gram-negative, small rods , 0.8-2.4µm, nonmotile & nonsporulated.
Colonies are graysh and opaque on chocolate agar; 2 mm in diameter after 48 hours
of incubation. Cultures have a characteristic pungent smell. Hemolysis variable.  
V-factor dependent growth.
Isolated from the upper respiratory tracts of pigs , where they constitute part of the residing mucosal flora
Is not pathogenic to pigs and have a low potential for colonization of the upper respiratory tract of gnotobiotic piglets.
  1. Olsen I., MØller 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. Moller K., Fussing V., Grimont P.A.D., Paster B.J., Dewhirst F.E. & Kilian M.: Actinobacillus minor sp. nov., Actinobacillus porcinus
    sp. nov., and Actinobacillus indolicus sp. nov., three new V factor-dependent species from the respiratory tract of pigs. Int. J. Syst.
    Bacteriol., 1996, 46, 951-956.
Alkaline phosphatase, catalase, indole, H2S, D(+) galactose, D(+) glucose (acid), D(+)
mannose, ONPG, maltose, sucrose (saccharose), raffinose = positive.

Urease, arginine dehydrolase, lysine decarboxylase, ornithine decarboxylase, L(+)
arabinose, meso-inositol, mannitol, D(-) sorbitol, inulin, esculin, salicin & , gas from
D(+) glucose = negative

Oxidase, D(+) xylose, lactose, melibiose & trehalose = variable.
(c) Costin Stoica
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