Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Current Status of- and Future Perspectives in- Bacterial Degradation of Benzo[a]pyrene

Version 1 : Received: 13 November 2020 / Approved: 16 November 2020 / Online: 16 November 2020 (08:53:39 CET)

How to cite: Nzila, A.; Musa, M.M. Current Status of- and Future Perspectives in- Bacterial Degradation of Benzo[a]pyrene. Preprints 2020, 2020110401 (doi: 10.20944/preprints202011.0401.v1). Nzila, A.; Musa, M.M. Current Status of- and Future Perspectives in- Bacterial Degradation of Benzo[a]pyrene. Preprints 2020, 2020110401 (doi: 10.20944/preprints202011.0401.v1).

Abstract

Polycyclic aromatic hydrocarbons (PAHs), which consist of low-molecular-weight PAHs (LMW-PAHs) and high-molecular-weight PAHs (HMW-PAHs), form an important class of pollutants. Pyrene and benzo[a]pyrene (BaP) are the main pollutants belonging to HMW-PAHs, and their degradation by microorganisms remains an important strategy for their removal from the environments. Extensive studies have been carried out on the isolation and characterisation of microorganisms that actively degrade LMW-PAHs, and to a certain extent, the HMW-PAH pyrene. However, so far, limited work has been carried out on BaP biodegradation. BaP consists of five fused aromatic rings, which confers this compound a high stability, rendering it less amenable to biodegradation. The current review summarizes the emerging reports on BaP biodegradation. More specifically, work carried out on BaP bacterial degradation and current knowledge gaps that limit our understanding of BaP degradation are highlighted. Moreover, new avenues of research on BaP degradation are proposed, specifically in the context of the development of “omics” approaches

Subject Areas

benzo[a]pyrene; biodegradation; co-metabolism; bioaugmentation; catabolic pathways; omics; functional metagenomics.

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