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Syst Appl Microbiol. 2013 Feb;36(1):1-10. doi: 10.1016/j.syapm.2012.10.003. Epub 2012 Dec 6.

Achromobacter animicus sp. nov., Achromobacter mucicolens sp. nov., Achromobacter pulmonis sp. nov. and Achromobacter spiritinus sp. nov., from human clinical samples.

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Laboratorium voor Microbiologie, Vakgroep Biochemie en microbiologie, Faculteit Wetenschappen, Universiteit Gent, Belgium.


The phenotypic and genotypic characteristics of fourteen human clinical Achromobacter strains representing four genogroups which were delineated by sequence analysis of nusA, eno, rpoB, gltB, lepA, nuoL and nrdA loci, demonstrated that they represent four novel Achromobacter species. The present study also characterized and provided two additional reference strains for Achromobacter ruhlandii and Achromobacter marplatensis, species for which, thus far, only single strains are publicly available, and further validated the use of 2.1% concatenated nusA, eno, rpoB, gltB, lepA, nuoL and nrdA sequence divergence as a threshold value for species delineation in this genus. Finally, although most Achromobacter species can be distinguished by biochemical characteristics, the present study also highlighted considerable phenotypic intraspecies variability and demonstrated that the type strains may be phenotypically poor representatives of the species. We propose to classify the fourteen human clinical strains as Achromobacter mucicolens sp. nov. (with strain LMG 26685(T) [=CCUG 61961(T)] as the type strain), Achromobacter animicus sp. nov. (with strain LMG 26690(T) [=CCUG 61966(T)] as the type strain), Achromobacter spiritinus sp. nov. (with strain LMG 26692(T) [=CCUG 61968(T)] as the type strain), and Achromobacter pulmonis sp. nov. (with strain LMG 26696(T) [=CCUG 61972(T)] as the type strain).

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