Phylum Proteobacteria, Class Betaproteobacteria, Order Burkholderiales, Family Alcaligenaceae, Genus Achromobacter,
Achromobacter piechaudii (Kiredjian et al. 1986) Yabuuchi et al. 1998.
Old synonym: Alcaligenes piechaudii Kiredjian et al. 1986.
Gram-negative rods with rounded ends, 0.5-1.0 x 1.0-1.5 μm. Nonsporeforming.
Noncapsulated. Motile by 2-8 peritrichous ﬂagella.
Colonies are 1 mm in diameter, circular, smooth, and entire on nutrient agar after 24-
48 h of growth. Obligately aerobic. Nonhalophilic, grows without NaCl in peptone-water
medium and at a maximum NaCl concentration of 7% (w/v). Nonhemolytic. Can grow
on MacConkey agar, beta-hydroxybutyrate (with production of lipid inclusion granules),
and cetrimide. Growth occurs at room temperature and 37 ºC but not at 5 or 41 ºC
(optimal growth temperature 28-30 ºC). No pigments are produced.
Isolated from human clinical samples.
- Hans-Jurgen Busse and Georg Auling: Genus II. Achromobacter Yabuuchi and Yano 1981, 477VP emend. Yabuuchi, Kawamura,
Kosako and Ezaki 1998a, 1083 in: Bergey's Manual of Systematic Bacteriology, vol. 2, part C: The Alpha-, Beta-, Delta-, and
Epsilonproteobacteria, George M. Garrity (Editor-in-Chief), 2005, 658-662.
- Yabuuchi (E.), Kawamura (Y.), Kosako (Y.) and Ezaki (T.): Emendation of the genus Achromobacter and Achromobacter
xylosoxidans (Yabuuchi and Yano) and proposal of Achromobacter ruhlandii (Packer and Vishniac) comb. nov., Achromobacter
piechaudii (Kiredjian et al.) comb. nov., and Achromobacter xylosoxidans subsp. denitrificans (Rüger and Tan) comb. nov.
Microbiol. Immunol., 1998, 42, 429-438.
- Vandamme, P. A., Peeters, C., Inganas, E., Cnockaert, M., Houf, K., Spilker, T., Moore, E. R. B. and Lipuma, J. J. 2016. Taxonomic
dissection of Achromobacter denitrificans Coenye et al.2003 and proposal of Achromobacter agilis sp. nov., nom. rev.,
Achromobacter pestifer sp. nov., nom. rev., Achromobacter kerstersii sp. nov. and Achromobacter deleyi sp. nov. Int. J. Syst. Evol.
Microbiol., 66, 3708-3717.
Positive results for catalase, H2S production (positive on lead acetate but negative on TSI), nitrate reduction (oxidase, tributyrin
hydrolysis, tyrosine hydrolysis, acid production from ethanol. Utilizes citrate (Simmons medium) as determined by the IP (Kiredjian et
al., 1986) method but not as determined by the NCTC method.
Can utilize: n-valerate, isovalerate, D-gluconate, mesaconate, itaconate, adipate, pimelate, acetate, L-malate, phenylacetate, n-capric
acid & glucose (negative in API 20 NE).
Negative results for acid and alkaline phosphatase, arginine dihydrolase, casein hydrolysis, C-4 lipase, DNase, beta-glucosidase,
esculin hydrolysis, gelatin hydrolysis, indole production, lysine decarboxylase, nitrite reduction, ornithine decarboxylase,
beta-D-galactosidase, starch hydrolysis,Tween 20 hydrolysis, Tween 80 hydrolysis, urease, acid production from: D-glucose,
adonitol, L-arabinose, D-cellobiose, dulcitol, D-fructose, glycerol, m-inositol, lactose, maltose, mannitol, raffinose, L-rhamnose,
salicin, D-sorbitol, sucrose, trehalose & D-xylose.
No utilization of: D-lactate, 5-ketogluconate, esculin, L-arabinose, D-mannitol, D-mannose, maltose & N-acetyl-D-glucosamine.
(c) Costin Stoica