A heterotrophic bacterial strain TL1 capable of aerobic denitrification was previously enriched in continuous culture from a landfill leachate treatment plant and isolated as a pure culture. The taxonomic position of this isolate within the ß-subclass of the was determined by 16S rDNA sequence analysis and by conventional taxonomy including substrate spectrum, quinone type (ubiquinone Q-8) and cellular fatty acid composition. Detection of the specific polyamine 2-hydroxyputrescine supports the membership of strain TL1 in the ß-subclass of the . The results of 16S rDNA sequencing showed that the strain clustered with, but was separate from, and . DNA-DNA hybridization experiments indicated that the new isolate represents a new species of the genus, for which the name is proposed; the type strain is DSM 12266.


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