Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus Actinobacillus,
Actinobacillus porcinus Moller, Fussing, Grimont, Paster, Dewhirst and Kilian, 1996.
Gram-negative, small rods, 0.2-2.4 µm, non-motile, non-sporulated.
Colonies are translucent to grayish and smooth on chocolate agar; some isolates
grow poorly on chocolate agar (0.2 mm in diameter), others grow readily (0.6 mm).
Hemolysis is negative. 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.
- 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.
- 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.
- 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.
- Turni C, Wu Y, Omaleki L, Giang N, Blackall PJ, Christensen H. Glaesserella australis sp. nov., isolated from the lungs of pigs.
Int J Syst Evol Microbiol 2020; 70:3686-3692.
Positive results for ONPG.
Negative results for catalase, urease, arginine dehydrolase, lysine decarboxylase, ornithine decarboxylase, indole production, acid
production from: D(+) arabinose, inulin, esculin, and salicin.
Variable results for nitrates reduction, oxidase, alkaline phosphatase, alpha-glucosidase, H2S production, acid production from: L(+)
arabinose, D(+) xylose, meso-inositol, mannitol, D(-) sorbitol, D(+) galactose, D(+) glucose (without gas), D(+) mannose, lactose,
maltose, melibiose, sucrose (saccharose), trehalose, starch, and raffinose.
(c) Costin Stoica