The Achromobacter is a genus of bacteria, under Burkholderiales. The cells are straight rods and are motile by using 1 – 20 peritrichous ?agella. They are strictly aerobic and are found in water (freshwater and marine) and soils.
The genus Achromobacter was described by Yabuuchi & Yano (1981) and originally contained a single species, Achromobacter xylosoxidans. Following a polyphasic taxonomic study, Yabuuchi et al. The isolates were recovered from diverse environments that included human clinical samples. 16S rDNA sequence analysis indicated that these isolates belonged to the genus Achromobacter. Whole-cell protein analysis distinguished two groups, which were confirmed by DNA–DNA hybridization. Based on the results of this study, the organisms were classified as two novel Achromobacter species, Achromobacter insolitus sp. nov. (type strain, LMG 6003T) and Achromobacter spanius sp. nov.
A polyphasic taxonomic study (employing whole-cell protein and fatty acid analyses, 16S rDNA sequencing, DNA–DNA hybridization, determination of DNA G+C content, antibiotic susceptibility testing and extensive phenotypic characterization) was performed on 10 isolates that appeared to be related to Alcaligenes faecalis.
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