Quorum sensing - a promising tool for degradation of industrial waste containing persistent organic pollutants

Tripathi, Sonam, Chandra, Ram, Purchase, Diane ORCID logoORCID: https://orcid.org/0000-0001-8071-4385, Bilal, Muhammad, Mythili, Raja and Yadav, Sangeeta (2022) Quorum sensing - a promising tool for degradation of industrial waste containing persistent organic pollutants. Environmental Pollution, 292 (Part B) , 118342. ISSN 0269-7491 [Article] (doi:10.1016/j.envpol.2021.118342)

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Restoring an environment contaminated with persistent organic pollutants (POPs) is highly challenging. Biodegradation by biofilm-forming bacteria through quorum sensing (QS) is a promising treatment process to remove these pollutants and promotes eco-restoration. QS plays an important role in biofilm formation, solubilization, and biotransformation of pollutants. QS is a density-based communication between microbial cells via signalling molecules, which coordinates specific characters and helps bacteria to acclimatize against stress conditions. Genetic diversification of a biofilm offers excellent opportunities for horizontal gene transfer, improves resistance against stress, and provides a suitable environment for the metabolism of POPs. To develop this technology in industrial scale, it is important to understand the fundamentals and ubiquitous nature of QS bacteria and appreciate the role of QS in the degradation of POPs. Currently, there are knowledge gaps regarding the environmental niche, abundance, and population of QS bacteria in wastewater treatment systems. This review aims to present up-to-date and state-of-the-art information on the roles of QS and QS-mediated strategies in industrial waste treatment including biological treatments (such as activated sludge), highlighting their potentials using examples from the pulp and paper mill industry, hydrocarbon remediation and phytoremediation. The information will help to provide a throughout understanding of the potential of QS to degrade POPs and advance the use of this technology. Current knowledge of QS strategies is limited to laboratory studies, full-scale applications remain challenging and more research is need to explore QS gene expression and test in full-scale reactors for wastewater treatment.

Item Type: Article
Keywords (uncontrolled): Quorum sensing, Phytoremediation, Biodegradation, Persistent organic pollutants, Hydrocarbons
Research Areas: A. > School of Science and Technology > Natural Sciences
Item ID: 34083
Notes on copyright: © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Useful Links:
Depositing User: Diane Purchase
Date Deposited: 26 Oct 2021 16:40
Last Modified: 29 Nov 2022 17:37
URI: https://eprints.mdx.ac.uk/id/eprint/34083

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