| Arcobacter anaerophilus |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Epsilonproteobacteria, Order Campylobacterales, Family Arcobacteraceae, Genus
Arcobacter, Arcobacter anaerophilus Sasi Jyothsna et al. 2013.
Arcobacter, Arcobacter anaerophilus Sasi Jyothsna et al. 2013.
Gram-negative, 0.1-0.3 x 1.0-2.0 μm. Non-motile. Non-spore-forming.
On nitrate agar, anaerobically well grown colonies are pale yellow, circular, smooth
with entire margin. Anaerobic broth culture is pale yellow, gelatinous and sediments
at the bottom. NaCl is not essential for growth, but good growth occurs with 1-3%
(w/v) NaCl; tolerates up to 6% NaCl. Grows optimally at pH 7.0-8.0 (range pH 7-10)
and 30 ºC (range 25-37 ºC). No aerobic or microaerobic growth at 37 ºC. No growth
on blood agar, in the presence of 0.04% triphenyltetrazolium chloride or cefoperazone
64 mg / l. Can grow in 1% glycine. Obligately anaerobic.
with entire margin. Anaerobic broth culture is pale yellow, gelatinous and sediments
at the bottom. NaCl is not essential for growth, but good growth occurs with 1-3%
(w/v) NaCl; tolerates up to 6% NaCl. Grows optimally at pH 7.0-8.0 (range pH 7-10)
and 30 ºC (range 25-37 ºC). No aerobic or microaerobic growth at 37 ºC. No growth
on blood agar, in the presence of 0.04% triphenyltetrazolium chloride or cefoperazone
64 mg / l. Can grow in 1% glycine. Obligately anaerobic.
Isolated from sediment samples of Gangasagar estuary, West Bengal, India.
Undetermined.
- Sasi Jyothsna TS, Rahul K, Ramaprasad EV, Sasikala Ch, Ramana ChV. Arcobacter anaerophilus sp. nov., isolated from an
estuarine sediment and emended description of the genus Arcobacter. Int J Syst Evol Microbiol 2013; 63:4619-4625.
Positive results for casein hydrolysis, citrate utilization, H2S production, indoxyl acetate hydrolysis, nitrate reduction and oxidase.
Can utilize (Biolog GN2): L-arabinose, D-arabitol, cellobiose, lactose, D-mannose, melibiose, acetate, inosine and phenylethylamine.
Negative results for acid phosphatase, amylase, catalase, gelatinase, indole production, lipase, urease and glucose fermentation.
Can utilize (Biolog GN2): L-arabinose, D-arabitol, cellobiose, lactose, D-mannose, melibiose, acetate, inosine and phenylethylamine.
Negative results for acid phosphatase, amylase, catalase, gelatinase, indole production, lipase, urease and glucose fermentation.
(c) Costin Stoica
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