| Canicola (Haemophilus) haemoglobinophilus |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus Canicola, Canicola
haemoglobinophilus (Lehmann and Neumann 1907) Christensen et al. 2021, type species of the genus.
Historical synonyms: Bacillus haemoglobinophilus canis Friedberger 1903, Bacterium haemoglobinophilus Lehmann and Neumann
1907, Haemophilus canis Rivers 1922, Haemophilus haemoglobinophilus (Lehmann and Neumann 1907) Murray 1939.
Includes Bisgaard taxon 35.
haemoglobinophilus (Lehmann and Neumann 1907) Christensen et al. 2021, type species of the genus.
Historical synonyms: Bacillus haemoglobinophilus canis Friedberger 1903, Bacterium haemoglobinophilus Lehmann and Neumann
1907, Haemophilus canis Rivers 1922, Haemophilus haemoglobinophilus (Lehmann and Neumann 1907) Murray 1939.
Includes Bisgaard taxon 35.
Gram-negative, 0.2-0.3 / 0.5-2.0 µm, pleomorphic rods. Non-motile. Non-capsulated.
Colonies on chocolate agar are smooth, convex, translucent, 1.0-2.0 mm. in diameter
in 24 hours, with a small granular area on top. Hemolysis is negative. Colonies might
be surrounded by a greenish discolouration. An unguent-like consistency is
observed, and colonies do not adhere to the agar surface. Aerobic, facultatively
anaerobic, require X-factor (type strain) but not V-factor for growth. CO2 is not required.
Growth on MacConkey agar is negative. No growth in KCN.
in 24 hours, with a small granular area on top. Hemolysis is negative. Colonies might
be surrounded by a greenish discolouration. An unguent-like consistency is
observed, and colonies do not adhere to the agar surface. Aerobic, facultatively
anaerobic, require X-factor (type strain) but not V-factor for growth. CO2 is not required.
Growth on MacConkey agar is negative. No growth in KCN.
Isolated from the preputial sac and vagina of dogs.
May belong to normal flora of the preputial sac and vagina of dogs. Probably low pathogenicity for dogs.
- Mogens Kilian, 2004. Genus III. Haemophilus. In: Bergey’s Manual of Systematic Bacteriology, Second edition, Vol two, part B,
George M. Garrity (Editor-in-Chief), pp. 883-904. - Mary P.E. Slack, 2006. Haemophilus. In: Topley & Wilson’s Microbiology and Microbial Infections, 10 edition, Vol. 2, Bacteriology,
Edward Arnold Ltd. - Pozsgi N., 1985. Genul Pasteurella. In: Bacteriologie medicala, vol II, V. Bilbiie, N. Pozsgi (sub redactia), Ed. Medicala, Bucuresti,
123-130. - 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. - Zinnemann K., Biberstein E.L., 1975.Genus Haemophilus.In:Buchanan R.E., Gibbons N.E. (co-editors), Bergey’s Manual of
Determinative Bacteriology, eight edition, The Williams & Wilkins Company, Baltimore. - Christensen H, Kuhnert P, Foster G, Bisgaard M. Reclassification of [Haemophilus] haemoglobinophilus as Canicola
haemoglobinophilus gen. nov., comb. nov. including Bisgaard taxon 35. Int J Syst Evol Microbiol 2021; 71:4881.
Positive results for nitrates reduction, oxidase, catalase, indole (type strain), acid production from: D(+) glucose (without gas),
maltose, D(-) ribose and sucrose.
Negative results for alkaline phosphatase, Simmons citrate, gelatinase, arginine dehydrolase, lysine decarboxylase, ornithine
decarboxylase (type strain is positive), alpha-glucosidase, urease, Voges-Proskauer test, acid production from: glycerol, xylitol, L(+)
arabinose, dulcitol, D(-) sorbitol, D(-) fructose (type strain), L(+) rhamnose, L(-) sorbose, cellobiose, D(+) melibiose, inulin, esculin
and salicin.
Variable results for H2S production and ONPG, acid production from: meso-inositol, dextrin, L-fucose, D(-) mannitol, D(+) mannose, D
(+) galactose, lactose, raffinose, trehalose and D(+) xylose, .
maltose, D(-) ribose and sucrose.
Negative results for alkaline phosphatase, Simmons citrate, gelatinase, arginine dehydrolase, lysine decarboxylase, ornithine
decarboxylase (type strain is positive), alpha-glucosidase, urease, Voges-Proskauer test, acid production from: glycerol, xylitol, L(+)
arabinose, dulcitol, D(-) sorbitol, D(-) fructose (type strain), L(+) rhamnose, L(-) sorbose, cellobiose, D(+) melibiose, inulin, esculin
and salicin.
Variable results for H2S production and ONPG, acid production from: meso-inositol, dextrin, L-fucose, D(-) mannitol, D(+) mannose, D
(+) galactose, lactose, raffinose, trehalose and D(+) xylose, .
(c) Costin Stoica
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