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Int J Syst Evol Microbiol 56 (2006), 2945-2948; DOI  10.1099/ijs.0.64563-0
© 2006 International Union of Microbiological Societies

Taxonomic Note

Pannonibacter phragmitetus, described from a Hungarian soda lake in 2003, had been recognized several decades earlier from human blood cultures as Achromobacter groups B and E

Barry Holmes1, Paul Segers2, Tom Coenye2, Marc Vancanneyt3 and Peter Vandamme2

1 National Collection of Type Cultures, Health Protection Agency Centre for Infections, Colindale, London, UK
2 Laboratory of Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
3 BCCM/LMG Bacteria Collection, Faculty of Sciences, Ghent University, Ghent, Belgium

Correspondence
Peter Vandamme
Peter.Vandamme{at}UGent.be

We performed a polyphasic taxonomic study on isolates previously tentatively classified as Achromobacter groups B and E in comparison with the type strain of Pannonibacter phragmitetus, LMG 22736T=NCTC 13350T. Comparative 16S rRNA gene sequence analysis suggested that strains of Achromobacter groups B and E belong to P. phragmitetus (similarity levels were higher than 99 %). DNA–DNA hybridization experiments and other genotypic and phenotypic analyses confirmed that the three taxa represent a single species. Whilst P. phragmitetus was described in 2003 from a Hungarian soda lake, it had been observed in human blood cultures in the UK since 1975. We present here the characteristics of the organism to facilitate its recognition in human clinical specimens and hence to determine its clinical significance.

The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences of Achromobacter group B strains LMG 5410, LMG 5411, LMG 5412 and LMG 5421 and Achromobacter group E strains LMG 5430 and LMG 5431 are respectively AF227158, AF227157, AM269446, AM269447, AF227160 and AF227159.

A comparison of the fatty acid profiles of seven strains assigned to P. phragmitetus is available as supplementary material in IJSEM Online.






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