| Actinobacillus vicugnae |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus
Actinobacillus, Actinobacillus vicugnae Kirchner et al. 2019.
Actinobacillus, Actinobacillus vicugnae Kirchner et al. 2019.
Gram-negative, rods. Non-motile.
Colonies are grey, slightly sticky, entire, non-pigmented, 2-3 mm diameter after 18 h
aerobic incubation at 37 ºC. Produce beta-haemolysis on sheep blood agar.
Colonies on MacConkey agar are small, red, lactose fermenters. V-factor independent
growth.
aerobic incubation at 37 ºC. Produce beta-haemolysis on sheep blood agar.
Colonies on MacConkey agar are small, red, lactose fermenters. V-factor independent
growth.
Isolated from alpaca (Vicugna pacos) in the UK.
The type strain was isolated from oesophageal ulceration of an alpaca.
- Kirchner M, Hunt B, Carson T, Duggett N, Muchowski J, Whatmore AM. Actinobacillus vicugnae sp. nov., isolated from alpaca
(Vicugna pacos). Int J Syst Evol Microbiol 2019; 69:3170-3177.
Positive results for beta-galactosidase (ONPG and PNPG), nitrate reduction, porphyrin, oxidase, urease, acid production from:
cellobiose, D-glucose, D-fructose, D-mannitol, D-sorbitol, N-acetylglucosamine, aesculin, maltose, sucrose, trehalose, gluconate,
5-ketogluconate, salicin, D-galactose, melibiose and raffinose.
Negative results for arginine dihydrolase, catalase, citrate utilization, gelatin hydrolysis, H2S production, indole production, lysine
decarboxylase, ornithine decarboxylase, tryptophan deaminase, Voges-Proskauer reaction, acid production from: glycerol, erythritol, D-
and L-arabinose, D- and L-xylose, D-adonitol, methyl beta-D-xylopyranoside, L-sorbose, L-rhamnose, dulcitol, inositol, methyl
alpha-D-mannopyranoside, methyl alpha-D-glucopyranoside, amygdalin, inulin, melezitose, starch, glycogen, xylitol, gentiobiose,
turanose, D-lyxose, D-tagatose, D- and L-fucose, D- and L-arabitol and potassium 2- ketogluconate.
Variable results for cid production from: arbutin, D-galactose, lactose, D-mannose, melibiose and D-ribose.
cellobiose, D-glucose, D-fructose, D-mannitol, D-sorbitol, N-acetylglucosamine, aesculin, maltose, sucrose, trehalose, gluconate,
5-ketogluconate, salicin, D-galactose, melibiose and raffinose.
Negative results for arginine dihydrolase, catalase, citrate utilization, gelatin hydrolysis, H2S production, indole production, lysine
decarboxylase, ornithine decarboxylase, tryptophan deaminase, Voges-Proskauer reaction, acid production from: glycerol, erythritol, D-
and L-arabinose, D- and L-xylose, D-adonitol, methyl beta-D-xylopyranoside, L-sorbose, L-rhamnose, dulcitol, inositol, methyl
alpha-D-mannopyranoside, methyl alpha-D-glucopyranoside, amygdalin, inulin, melezitose, starch, glycogen, xylitol, gentiobiose,
turanose, D-lyxose, D-tagatose, D- and L-fucose, D- and L-arabitol and potassium 2- ketogluconate.
Variable results for cid production from: arbutin, D-galactose, lactose, D-mannose, melibiose and D-ribose.
(c) Costin Stoica
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