| Arcobacter defluvii |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Epsilonproteobacteria, Order Campylobacterales, Family Arcobacteraceae, Genus
Arcobacter, Arcobacter defluvii Collado et al. 2011.
Arcobacter, Arcobacter defluvii Collado et al. 2011.
Gram-negative, slightly curved rods, 0.3-0.5 x 1–2 μm. Motile by a single polar flagellum. Non-encapsulated. Non-spore-forming.
Colonies on blood agar incubated in aerobic conditions at 30 ºC for 48 h are 2-4 mm
in diameter, beige to off-white, circular with entire margins, convex and non-swarming.
Pigments are not produced. Grows on blood agar at room temperature (18-22 ºC), 30
ºC and 37 ºC under aerobic or microaerobic culture conditions with no significant
differences. Weak growth is obtained both in anaerobic conditions at 30 ºC and in
aerobic conditions at 42 ºC. No haemolysis is observed on TSA supplemented with
5% sheep blood. Under aerobic conditions, grows at 30 ºC on MacConkey agar, on
minimal media, on Campylobacter charcoal deoxycholate agar and on media
containing: 2% NaCl, 0.1% sodium deoxycholate, 1% oxgall, 0.05 % safranin, 0.005 %
crystal violet, 0.005% basic fuchsin and 0.001% brilliant green. Variable growth on
media containing 64 mg / l cefoperazone. No growth on media containing 1% glycine,
4% (w/v) NaCl or 0.04 % TTC.
in diameter, beige to off-white, circular with entire margins, convex and non-swarming.
Pigments are not produced. Grows on blood agar at room temperature (18-22 ºC), 30
ºC and 37 ºC under aerobic or microaerobic culture conditions with no significant
differences. Weak growth is obtained both in anaerobic conditions at 30 ºC and in
aerobic conditions at 42 ºC. No haemolysis is observed on TSA supplemented with
5% sheep blood. Under aerobic conditions, grows at 30 ºC on MacConkey agar, on
minimal media, on Campylobacter charcoal deoxycholate agar and on media
containing: 2% NaCl, 0.1% sodium deoxycholate, 1% oxgall, 0.05 % safranin, 0.005 %
crystal violet, 0.005% basic fuchsin and 0.001% brilliant green. Variable growth on
media containing 64 mg / l cefoperazone. No growth on media containing 1% glycine,
4% (w/v) NaCl or 0.04 % TTC.
Isolated from raw sewage from the wastewater treatment plant in the town of Reus, Spain.
Undetermined.
- Collado L, Levican A, Perez J, Figueras MJ. Arcobacter defluvii sp. nov., isolated from sewage samples. Int J Syst Evol Microbiol
2011; 61:2155-2161. - Whiteduck-Leveillee K, Whiteduck-Leveillee J, Cloutier M, Tambong JT, Xu R, Topp E, Arts MT, Chao J, Adam Z, Andre Levesque
C, et al. Arcobacter lanthieri sp. nov., isolated from pig and dairy cattle manure. Int J Syst Evol Microbiol 2015; 65:2709-2716.
Positive results for catalase (weak), nitrate reduction, indoxyl acetate hydrolysis, oxidase and urease.
Negative results for alkaline phosphatase, caseinase, lecithinase, starch hydrolysis, hippurate hydrolysis and H2S production on TSI
and Voges-Proskauer test.
Negative results for alkaline phosphatase, caseinase, lecithinase, starch hydrolysis, hippurate hydrolysis and H2S production on TSI
and Voges-Proskauer test.
(c) Costin Stoica
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