| Campylobacter californiensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Epsilonproteobacteria, Order Campylobacterales, Family Campylobacteraceae,
Genus Campylobacter, Campylobacter californiensis Miller et al. 2024.
Genus Campylobacter, Campylobacter californiensis Miller et al. 2024.
Gram-negative, slightly curved rods. Coccoid cells are observed in some cultures.
Motile. Non-spore-forming.
Motile. Non-spore-forming.
After 72h culture at 37 ºC under microaerobic conditions on anaerobe basal agar
(ABA) -blood, colonies are glistening, opaque, convex, and circular with entire
margins and are 1-2mm in diameter. No alpha-haemolytic activity. Growth occurs on
ABA-blood at both 37 and 42 ºC under microaerobic conditions and at 37 ºC under
anaerobic conditions. No growth on ABA-blood at 30 ºC under microaerobic
conditions or at any temperature under aerobic conditions. Growth is supported on
ABA-blood with a final NaCl concentration of 2% (w/v) and on ABA-blood
supplemented with 1% (w/v) glycine. Most strains grow on ABA-blood supplemented
with 0.04% TTC.
(ABA) -blood, colonies are glistening, opaque, convex, and circular with entire
margins and are 1-2mm in diameter. No alpha-haemolytic activity. Growth occurs on
ABA-blood at both 37 and 42 ºC under microaerobic conditions and at 37 ºC under
anaerobic conditions. No growth on ABA-blood at 30 ºC under microaerobic
conditions or at any temperature under aerobic conditions. Growth is supported on
ABA-blood with a final NaCl concentration of 2% (w/v) and on ABA-blood
supplemented with 1% (w/v) glycine. Most strains grow on ABA-blood supplemented
with 0.04% TTC.
Isolated from the feces of cattle and feral swine. Resistant to 30mg / l cephalothin and 30mg / l nalidixic acid.
Undetermined.
- Miller WG, Chapman MH, Williams TG, Wood DF, Bono JL, Kelly DJ. Campylobacter californiensis sp. nov., isolated from cattle
and feral swine. Int J Syst Evol Microbiol 2024; 74:6524
Positive results for nitrate reduction, oxidase and selenite reduction.
Negative results for alkaline phosphatase, hippurate hydrolysis, indoxyl acetate hydrolysis, triphenyltetrazolium chloride reduction and
urease.
Variable H2S production on TSI.
Negative results for alkaline phosphatase, hippurate hydrolysis, indoxyl acetate hydrolysis, triphenyltetrazolium chloride reduction and
urease.
Variable H2S production on TSI.
(c) Costin Stoica
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