| Haemophilus sputorum |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus
Haemophilus, Haemophilus sputorum Norskov-Lauritsen et al. 2012.
Haemophilus, Haemophilus sputorum Norskov-Lauritsen et al. 2012.
Gram-negative, small, regular rods, 0.3-0.5 x 2.0-3.0 µm, with occasional coccoid
forms. Non-motile.
forms. Non-motile.
Colonies on chocolate agar are convex, whitish, opaque, 0.5–1.5 mm in diameter after
24 h. Beta-haemolysis is produced on horse or sheep blood agar; occasional strains
are non-haemolytic and consequently fail to grow on blood agar in the absence of a
feeder strain. Growth is dependent on V factor. Haemin (X factor) is not required.
Facultatively anaerobic.
24 h. Beta-haemolysis is produced on horse or sheep blood agar; occasional strains
are non-haemolytic and consequently fail to grow on blood agar in the absence of a
feeder strain. Growth is dependent on V factor. Haemin (X factor) is not required.
Facultatively anaerobic.
Isolated from blood, sputum of patients with cystic fibrosis, and tooth alveolitis.
Opportunistic pathogen.
- Norskov-Lauritsen N, Bruun B, Andersen C, Kilian M. Identification of haemolytic Haemophilus species isolated from human
clinical specimens and description of Haemophilus sputorum sp. nov. Int J Med Microbiol 2012; 302:78-83.
Positive results for beta-galactosidase, urease, leucine arylamidase, oxidase, acid production from: D-glucose, fructose, D-maltose
and maltotriose.
Negative results for arginine dihydrolase, H2S production (or weakly positive on lead acetate), indole production, lysine decarboxylase,
ornithine decarboxylase, phenylalanine arylamidase, acid production from: N-acetyl-D-glucosamine, lactose, D-mannose, D-malate,
D-ribose and D-xylose.
Variable results for catalase, acid production from D-galactose.
and maltotriose.
Negative results for arginine dihydrolase, H2S production (or weakly positive on lead acetate), indole production, lysine decarboxylase,
ornithine decarboxylase, phenylalanine arylamidase, acid production from: N-acetyl-D-glucosamine, lactose, D-mannose, D-malate,
D-ribose and D-xylose.
Variable results for catalase, acid production from D-galactose.
(c) Costin Stoica
| Antibiogram |
| Encyclopedia |
| Culture media |
| Biochemical tests |
| Stainings |
| Images |
| Movies |
| Articles |
| Identification |
| Software |
| R E G N U M PROKARYOTAE |
| Back |