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Classification of Achromobacter genogroups 2, 5, 7 and 14 as Achromobacter insuavis sp. nov., Achromobacter aegrifaciens sp. nov., Achromobacter anxifer sp. nov. and Achromobacter dolens sp. nov., respectively.

Journal article
Authors Peter Vandamme
Edward R.B. Moore
Margo Cnockaert
Charlotte Peeters
Liselott Svensson-Stadler
Kurt Houf
Theodore Spilker
John J Lipuma
Published in Systematic and applied microbiology
Volume 36
Issue 7
Pages 474–482
ISSN 1618-0984
Publication year 2013
Published at Institute of Biomedicine, Department of Infectious Medicine
Pages 474–482
Language en
Keywords chromobacter, Multilocus sequence analysis, Cystic fibrosis
Subject categories Infectious Medicine


The phenotypic and genotypic characteristics of seventeen Achromobacter strains representing MLST genogroups 2, 5, 7 and 14 were examined. Although genogroup 2 and 14 strains shared a DNA-DNA hybridization level of about 70%, the type strains of both genogroups differed in numerous biochemical characteristics and all genogroup 2 and 14 strains could by distinguished by nitrite reduction, denitrification and growth on acetamide. Given the MLST sequence divergence which identified genogroups 2 and 14 as clearly distinct populations, the availability of nrdA sequence analysis as a single locus identification tool for all Achromobacter species and genogroups, and the differential phenotypic characteristics, we propose to formally classify Achromobacter genogroups 2, 5, 7 and 14 as four novel Achromobacter species for which we propose the names Achromobacter insuavis sp. nov. (with strain LMG 26845(T) [=CCUG 62426(T)] as the type strain), Achromobacter aegrifaciens sp. nov. (with strain LMG 26852(T) [=CCUG 62438(T)] as the type strain), Achromobacter anxifer sp. nov. (with strain LMG 26857(T) [=CCUG 62444(T)] as the type strain), and Achromobacter dolens sp. nov. (with strain LMG 26840(T) [=CCUG 62421(T)] as the type strain).

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