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Title (Primary) Desulfitobacterium aromaticivorans sp. nov. and Geobacter toluenoxydans sp. nov., iron-reducing bacteria capable of anaerobic degradation of monoaromatic hydrocarbons
Author Kunapuli, U.; Jahn, M.K.; Lueders, T.; Geyer, R.; Heipieper, H.J.; Meckenstock, R.U.;
Journal International Journal of Systematic and Evolutionary Microbiology
Year 2010
Department UMB; UBT;
Volume 60
Issue 3
Language englisch;
Abstract Dissimilatory iron reduction plays a significant role in subsurface environments. Currently, it is assumed that members of the genus Geobacter constitute the majority of the iron-reducing micro-organisms that oxidize aromatic compounds in contaminated subsurface environments. Here, we report the isolation of two phylogenetically distinct pure cultures of iron-reducing degraders of monoaromatic hydrocarbons, strain TMJ1T, which belongs to the genus Geobacter within the Deltaproteobacteria, and strain UKTLT, belonging to the genus Desulfitobacterium within the Clostridia. Both strains utilize a wide range of substrates as carbon and energy sources, including the aromatic compounds toluene, phenol and p-cresol. Additionally, strain UKTLT utilizes o-xylene and TMJ1T utilizes m-cresol. Anaerobic degradation of toluene in both strains and o-xylene in strain UKTLT is initiated by activation with fumarate addition to the methyl group. The genomic DNA G+C contents of strains TMJ1T and UKTLT are 54.4 and 47.7 mol%, respectively. Based on a detailed physiological characterization and phylogenetic analysis of the 16S rRNA genes of both strains, we propose the names Desulfitobacterium aromaticivorans sp. nov. (type strain UKTLT =DSM 19510T =JCM 15765T) and Geobacter toluenoxydans sp. nov. (type strain TMJ1T =DSM 19350T =JCM 15764T) to accommodate these strains. To the best of our knowledge, strain UKTLT is the first described spore-forming, iron-reducing bacterium that can degrade aromatic hydrocarbons.
ID 10218
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=10218
Kunapuli, U., Jahn, M.K., Lueders, T., Geyer, R., Heipieper, H.J., Meckenstock, R.U. (2010):
Desulfitobacterium aromaticivorans sp. nov. and Geobacter toluenoxydans sp. nov., iron-reducing bacteria capable of anaerobic degradation of monoaromatic hydrocarbons
Int. J. Syst. Evol. Microbiol. 60 (3), 686 - 695