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Sphingobium aromaticiconvertens sp. nov., a xenobiotic-compound-degrading bacterium from polluted river sediment

¹ Helmholtz Zentrum für Infektionsforschung (formerly GBF), Division Microbiology, D-38124 Braunschweig, Germany
² Estación Experimental del Zaidín - EEZ-CSIC, Depto de Bioquímica, Biología Celular y Molecular, Línea de Degradación de Tóxicos Orgánicos, Calle Profesor Albareda 1, E-18008 Granada, Spain
³ Institut für Bakteriologie, Mykologie und Hygiene, Veterinärmedizinische Universität Wien, A-1210 Wien, Austria
⁴ Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität, D-35390 Giessen, Germany
⁵ Department of Biological and Environmental Science, University of Jyväskylä, FIN-40100 Jyväskylä, Finland

Correspondence
Wolf-Rainer Abraham
wab{at}gbf.de

A bacterial strain capable of degrading some monochlorinated dibenzofurans, designated RW16^T, was isolated from aerobic River Elbe sediments. The strain was characterized based on 16S rRNA gene sequence analysis, DNA G+C content, physiological characteristics, polyamines, ubiquinone and polar lipid pattern and fatty acid composition. This analysis revealed that strain RW16^T represents a novel species of the genus Sphingobium. The DNA G+C content of strain RW16^T, 60.7 mol%, is the lowest yet reported for the genus. 16S rRNA gene sequence analysis placed strain RW16^T as an outlier in the genus Sphingobium. The name Sphingobium aromaticiconvertens sp. nov. is proposed for this dibenzofuran-mineralizing organism, with type strain RW16^T (=DSM 12677^T=CIP 109198^T).

A tree generated by UPGMA and details of the distribution of polar lipids in strain RW16^T and related species are available as supplementary material in IJSEM Online.

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