Species/Subspecies: | Bordetella pertussis | ||||||||
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Categories: | Causes hemolysis; primarily of interest in human medicin | ||||||||
Etymology: | Genus name: named after the Belgian microbiologist Jules Bordet (1870-1961), who first isolated B. pertussis. Species epithet: severe cough (whooping cough). | ||||||||
Significance: | [Very important] | ||||||||
Taxonomy: | Class Betaproteobacteria Order Burkholderiales Family Alcaligenaceae Genus Bordetella |
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Type Strain: | 18-232 = ATCC 9797 = CCUG 30873 = NCTC 10739 | ||||||||
Macromorphology (smell):
| Form small pinpoint white shiny colonies (appr. diameter 1 mm), which give hemolysis on blood agar. | ||||||||
Micromorphology: | Small non motile coccoid rods (0.2-0.5 x 0.5-1 µm), which appear singly, in pair or more rarely in chains. | ||||||||
Gram +/Gram -: | G- | ||||||||
Metabolism: | Aerobic | ||||||||
Catalase/Oxidase: | +/+ | ||||||||
Other Enzymes: | Urease - | ||||||||
Biochemical Tests: | Citrate + | ||||||||
Fermentation of carbohydrates: | Bordetella spp. does not ferment carbohydrates. | ||||||||
Spec. Char.: | Optimal growth temperature: 35-37°C. | ||||||||
Disease: |
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Virulence Factors: | Filamentous hamagglutinin which anchors the bacteria to cilia. A tracheal cytotoxin, which inhibits the movement of the cilia, is then produced. Lipopolysaccharide (LPS), which is an endotoxin. Pertussis toxin (PT) which is an AB5-type exotoxin, helps the bacteria to colonize the respiratory tract. PT is secreted by a type IV secretion system. | ||||||||
Genome Sequence: |
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16S rRNA Seq.: |
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Taxonomy/phylogeny:
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Eight species have been described within genus Bordetella. The four species, which are described in VetBact, are very closely related. | ||||||||
Comment: | B. pertussis is easily spread by coughing and the incubations period is 1-2 weeks. | ||||||||
Updated: | 2021-08-07 |
News |
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New families introduced within the order Enterobacterales![]() The order Enterobacterales (formerly called Enterobacteriales) previously consisted of bacteria with different properties and phylogenetically, these bacteria were far apart. In order for the taxonomy to be more in line with phylogeny, some of these bacteria have, therefore, been sorted into 6 new families. Published 2022-04-13. Read more... |