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1 Área Microbiologia, Departament de Biologia, Universitat de les Illes Balears, and Institut Mediterrani d'Estudis Avançats (CSIC-UIB), 07122 Palma de Mallorca, Illes Balears, Spain
2 Abt. Molekularphysiologie, Institut für Mikrobiologie und Genetik, Georg-August-Universität Göttingen, 37077 Göttingen, Germany
3 CCUG, Culture Collection, Department of Clinical Bacteriology, University of Göteborg, 41346 Göteborg, Sweden
Correspondence
Jorge Lalucat
jlalucat{at}uib.es
Three strains of aerobic Gram-negative bacilli, two isolated from industrial water and freshwater (strains CCUG 48205T and CCUG 52220) and the third from soil (strain CCUG 52222T), were analysed phenotypically and genotypically to clarify their taxonomic classification. 16S rRNA gene sequence analysis revealed that the three strains were located on the same phylogenetic branch, closely related to Roseateles depolymerans, the only recognized species in the genus. DNA–DNA hybridization studies, analyses of fatty acid contents, and physiological and biochemical tests supported the proposal of two novel species, Roseateles aquatilis sp. nov. (type strain, CCUG 48205T=CECT 7248T) and Roseateles terrae sp. nov. (type strain, CCUG 52222T=CECT 7247T).
The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA, ITS1, nifH and puf gene sequences determined in this study are AM501443–AM501446, AM501462, AM501479 and AM501480, and AM773545–AM773547, respectively.
Carbon source utilization data (Biolog), DNA–DNA hybridization values and a 16S rRNA gene sequence matrix are available as supplementary tables with the online version of this paper.
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