| Arcobacter faecis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Epsilonproteobacteria, Order Campylobacterales, Family Arcobacteraceae, Genus
Arcobacter, Arcobacter faecis Whiteduck-Leveillee et al. 2019.
Species description is based on a single isolate.
Arcobacter, Arcobacter faecis Whiteduck-Leveillee et al. 2019.
Species description is based on a single isolate.
Gram-negative, slightly curved rods,0.2-0.5 x 1.3-2.1 µm. Motile by a single polar
flagellum. Non-encapsulated. Non-spore-forming.
flagellum. Non-encapsulated. Non-spore-forming.
Colonies on blood agar and modified Agarised Arcobacter Medium (m-AAM) are
small,1-3 mm in diameter, translucent beige to whitish color after 96 h of incubation
at 30 ºC. Growth occurs at 25, 30 and 37 ºC after 3-6 days on CCDA, MacConkey agar,
nutrient medium + 5% sheep blood containing 0.1% sodium deoxycholate and 1%
oxgall under aerobic and microaerophilic conditions. Cell growth was observed on
nutrient medium + 5% sheep blood containing 0.05% safranin and 0.01% TTC only at
25 and 30 ºC under aerobic and microaerophilic conditions. Grows on 0.04% TTC at
25 and 30 ºC only under microaerophilic condition.No growth on Minimal medium,
Marine agar and in the presence of 1% glycine and 4% NaCl. Non-haemolytic.
small,1-3 mm in diameter, translucent beige to whitish color after 96 h of incubation
at 30 ºC. Growth occurs at 25, 30 and 37 ºC after 3-6 days on CCDA, MacConkey agar,
nutrient medium + 5% sheep blood containing 0.1% sodium deoxycholate and 1%
oxgall under aerobic and microaerophilic conditions. Cell growth was observed on
nutrient medium + 5% sheep blood containing 0.05% safranin and 0.01% TTC only at
25 and 30 ºC under aerobic and microaerophilic conditions. Grows on 0.04% TTC at
25 and 30 ºC only under microaerophilic condition.No growth on Minimal medium,
Marine agar and in the presence of 1% glycine and 4% NaCl. Non-haemolytic.
Isolated from a human waste septic tank. Susceptible to cefoperazone (64 mg / l), azithromycin, cefoperazone, chloramphenicol,
ciprofloxacin, clindamycin, erythromycin, gentamicin, nalidixic acid and tetracycline.
ciprofloxacin, clindamycin, erythromycin, gentamicin, nalidixic acid and tetracycline.
Undetermined.
- Whiteduck-Leveillee K, Whiteduck-Leveillee J, Cloutier M, Tambong JT, Xu R, Topp E, Arts MT, Chao J, Adam Z, Levesque CA, et
al. Identification, characterization and description of Arcobacter faecis sp. nov., isolated from a human waste septic tank. Syst Appl
Microbiol 2016; 39:93-99.
Positive results for catalase, esterase, indoxyl acetate hydrolysis, nitrate reduction, oxidase, TTC reduction and Voges-Proskauer test.
Negative results for alkaline phosphatase, L-arginine arylamidase, L-aspartate arylamidase, arginine dihydrolase, beta-galactosidase,
gelatinase, H2S production, indole production, Na-succinate, hippurate hydrolysis, gamma-glutamyl transferase, pyrrolidonyl
arylamidase, lysine decarboxylase, ornitine decarboxylase, citrate utilization, tryptone deaminase, urease, acid production from:
amygdalin, arabinose, D-glucose, inositol, mannitol, melibiose, rhamnose, saccharose and sorbitol.
Negative results for alkaline phosphatase, L-arginine arylamidase, L-aspartate arylamidase, arginine dihydrolase, beta-galactosidase,
gelatinase, H2S production, indole production, Na-succinate, hippurate hydrolysis, gamma-glutamyl transferase, pyrrolidonyl
arylamidase, lysine decarboxylase, ornitine decarboxylase, citrate utilization, tryptone deaminase, urease, acid production from:
amygdalin, arabinose, D-glucose, inositol, mannitol, melibiose, rhamnose, saccharose and sorbitol.
(c) Costin Stoica
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