Aromatoleum

"Aromatoleum" is a genus of bacteria capable of microbial biodegradation of organic pollutants. It has one single described species member, A. aromaticum, for which the only strain is strain EbN1.

Aromatoleum
Scientific classification Edit this classification
Domain: Bacteria
Phylum: Pseudomonadota
Class: Betaproteobacteria
Order: Rhodocyclales
Family: Rhodocyclaceae
Genus: Aromatoleum
Species:
A. aromaticum
Binomial name
Aromatoleum aromaticum

This taxonomy is accepted by the NCBI taxonomy database, and consequently by many bioinformatic databases. However, the strain EbN1 has not been described in detail, therefore, according to the International Code of Nomenclature of Bacteria,[1] the name "Aromatoleum aromaticum" is not valid[2] and should be officially referred to as Azoarcus sp. EbN1 as it belongs to the Azoarcus/Thauera cluster.[3] The discovery of the strain was published in 1995,[4] and was subsequently referred to in the literature as "Aromatoleum aromaticum" and cited as "(Rabus, unpublished data)".[3]

A. aromaticum strain EbN1 has been fully sequenced by the same researchers who discovered it and coworkers. It has one chromosome and two plasmids, encoding for 10 anaerobic and 4 aerobic aromatic degradation pathways.[5] The genome is rich in paralogous gene clusters, mobile gene elements, and genes similar to that from other bacteria, suggesting a history full of horizontal gene transfer events. The bacterium has a well-regulated metabolic network. Unlike many species in Azoarcus proper, it is incapable of fixing nitrogen.[6]

References
  1. Lapage, S.; Sneath, P.; Lessel, E.; Skerman, V.; Seeliger, H.; Clark, W. (1992). International Code of Nomenclature of Bacteria: Bacteriological Code, 1990 Revision. Washington, D.C.: ASM Press. PMID 21089234.
  2. index entry in LPSN; Euzéby, J.P. (1997). "List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet". International Journal of Systematic and Evolutionary Microbiology. 47 (2): 590–2. doi:10.1099/00207713-47-2-590. PMID 9103655.
  3. Wöhlbrand, L.; Kallerhoff, B.; Lange, D.; Hufnagel, P.; Thiermann, J. R.; Reinhardt, R.; Rabus, R. (2007). "Functional proteomic view of metabolic regulation in "Aromatoleum aromaticum" strain EbN1". Proteomics. 7 (13): 2222–2239. doi:10.1002/pmic.200600987. PMID 17549795.
  4. Rabus, R.; Widdel, F. (1995). "Anaerobic degradation of ethylbenzene and other aromatic hydrocarbons by new denitrifying bacteria". Archives of Microbiology. 163 (2): 96–103. doi:10.1007/s002030050177. PMID 7710331.
  5. "Aromatoleum aromaticum (strain EbN1) aka Azoarcus sp. (strain EbN1))". UniProt Proteomes.
  6. Rabus, R; Kube, M; Heider, J; Beck, A; Heitmann, K; Widdel, F; Reinhardt, R (January 2005). "The genome sequence of an anaerobic aromatic-degrading denitrifying bacterium, strain EbN1". Archives of Microbiology. 183 (1): 27–36. doi:10.1007/s00203-004-0742-9. PMID 15551059. S2CID 25361713.


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