| Campylobacter molothri |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Epsilonproteobacteria, Order Campylobacterales, Family Campylobacteraceae,
Genus Campylobacter, Campylobacter molothri Miller et al. 2025.
Genus Campylobacter, Campylobacter molothri Miller et al. 2025.
Gram-negative, curved or spiral rods, 0.22 -2.12 µm. Coccoid forms are present in
some cultures. Motile by bipolar flagella.
some cultures. Motile by bipolar flagella.
Growth occurs on anaerobe basal agar with blood (ABA-B) at both 37 and 42 ºC under
microaerobic conditions and at 37 ºC under anaerobic conditions. No growth on ABA-
B at 30 ºC under microaerobic conditions or at any temperature under aerobic
conditions. No alpha-haemolytic activity. Growth is not supported on ABA-B with a final
NaCl concentration ≥ 2% (w/v). Growth on ABA-B supplemented with 1% (w/v) glycine
is variable (50%). Most strains grow on ABA-B with 0.04% TTC (89%). All strains grow
on media with 0.032% (w/v) methyl orange and anaerobically on media with 0.1%
(w/v) trimethylamine N-oxide. Weak growth on modified charcoal-cefoperazone-
deoxycholate agar (mCCDA).
microaerobic conditions and at 37 ºC under anaerobic conditions. No growth on ABA-
B at 30 ºC under microaerobic conditions or at any temperature under aerobic
conditions. No alpha-haemolytic activity. Growth is not supported on ABA-B with a final
NaCl concentration ≥ 2% (w/v). Growth on ABA-B supplemented with 1% (w/v) glycine
is variable (50%). Most strains grow on ABA-B with 0.04% TTC (89%). All strains grow
on media with 0.032% (w/v) methyl orange and anaerobically on media with 0.1%
(w/v) trimethylamine N-oxide. Weak growth on modified charcoal-cefoperazone-
deoxycholate agar (mCCDA).
Isolated from wild birds and river water. Resistant to 30mg / l cephalothin and sensitive to 30mg / l nalidixic acid.
Undetermined.
- Miller WG, Lopes BS, Chapman MH, Williams TG, Ramjee M, Wood DF, Bono JL, Forbes KJ. Campylobacter molothri sp. nov.
isolated from wild birds. Int J Syst Evol Microbiol 2025; 75:6635.
Positive results for alkaline phosphatase (most strains), catalase, hippurate hydrolysis, nitrate reduction, oxidase and TTC reduction
(most strains).
Negative results for H2S production on TSI, indoxyl acetate hydrolysis, selenite reduction and urease.
(most strains).
Negative results for H2S production on TSI, indoxyl acetate hydrolysis, selenite reduction and urease.
(c) Costin Stoica
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