| Arcobacter caeni |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Epsilonproteobacteria, Order Campylobacterales, Family Arcobacteraceae, Genus
Arcobacter, Arcobacter caeni Perez-Cataluna et al. 2019.
Species description is based on a single isolate.
Arcobacter, Arcobacter caeni Perez-Cataluna et al. 2019.
Species description is based on a single isolate.
Gram-negative, slightly curved rods,0.2-0.4 x 2.0-2.5 µm. Motile by a single polar
flagellum. Non-encapsulated. Non-spore-forming.
flagellum. Non-encapsulated. Non-spore-forming.
Colonies on blood agar at 30 ºC under aerobiosis for 48 h are 1-3 mm in diameter,
beige to off-white, convex, circular with entire margins and non-swarming. Pigments
or haemolysis are not produced on blood agar. Grows on blood agar at 22–25 and 30
ºC under aerobiosis, anaerobiosis and microaerobiosis; no growth is observed at the
other temperatures and atmospheres tested. Growth occurs in media with 0.05 %
safranin, and on CCDA and MacConkey agars. No growth is observed in media with 2
and 4% (w/v) NaCl, 1% oxgall, 0.1% sodium deoxycholate, 1% glycine, 0.005%
basic fuchsine, 0.0005% crystal violet, 0.001% brilliant green, and 0.01, 0.04 and
0.1% TTC, or in minimal medium.
beige to off-white, convex, circular with entire margins and non-swarming. Pigments
or haemolysis are not produced on blood agar. Grows on blood agar at 22–25 and 30
ºC under aerobiosis, anaerobiosis and microaerobiosis; no growth is observed at the
other temperatures and atmospheres tested. Growth occurs in media with 0.05 %
safranin, and on CCDA and MacConkey agars. No growth is observed in media with 2
and 4% (w/v) NaCl, 1% oxgall, 0.1% sodium deoxycholate, 1% glycine, 0.005%
basic fuchsine, 0.0005% crystal violet, 0.001% brilliant green, and 0.01, 0.04 and
0.1% TTC, or in minimal medium.
Isolated from secondary treated wastewater from the Wastewater Treatment Plant in Reus, Spain.
Resistant to nalidixic acid (30 mg / l), cephalothin (30 mg / l) and cefoperazone (64 mg / l).
Resistant to nalidixic acid (30 mg / l), cephalothin (30 mg / l) and cefoperazone (64 mg / l).
Undetermined.
- Perez-Cataluna A, Salas-Masso N, Figueras MJ. Arcobacter lacus sp. nov. and Arcobacter caeni sp. nov., two novel species
isolated from reclaimed water. Int J Syst Evol Microbiol 2019; 69:3326-3331.
Positive results for acid catalase, H2S production on TSI, indoxyl acetate hydrolysis, nitrate reduction and oxidase.
Negative results for casein hydrolysis, lecithinase, starch hydrolysis, urease and acid production from glucose (TSI).
Negative results for casein hydrolysis, lecithinase, starch hydrolysis, urease and acid production from glucose (TSI).
(c) Costin Stoica
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