Photolytic quorum quenching: A new anti-biofouling strategy for membrane bioreactors

Zhang, Xiao Lei; Lee, Kibaek; Yu, Hui; Mameda, Naresh; Choo, Kwang‐Ho

doi:10.1016/j.cej.2019.122235

Cited by 33 publications

(25 citation statements)

References 57 publications

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“…BH4 can prolong the filtration time from 12 to 27 and 17 days respectively because of the disruption of EPS production on the membrane surface (Pervez et al 2018). Zhang et al (2019) examined a photolytic QQ-the impact of UVon QS molecules-and suggested that this may be applied in water treatments because of the satisfying effectiveness in QQ. Biofilm formation is also a problem in metalworking systems.…”

Section: Biotechnological Applicationmentioning

confidence: 99%

Prevention of biofilm formation by quorum quenching

Paluch

Rewak‐Soroczyńska

Jędrusik

et al. 2020

Appl Microbiol Biotechnol

303

151

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Quorum sensing (QS) is a mechanism that enables microbial communication. It is based on the constant secretion of signaling molecules to the environment. The main role of QS is the regulation of vital processes in the cell such as virulence factor production or biofilm formation. Due to still growing bacterial resistance to antibiotics that have been overused, it is necessary to search for alternative antimicrobial therapies. One of them is quorum quenching (QQ) that disrupts microbial communication. QQ-driving molecules can decrease or even completely inhibit the production of virulence factors (including biofilm formation). There are few QQ strategies that comprise the use of the structural analogues of QS receptor autoinductors (AI). They may be found in nature or be designed and synthesized via chemical engineering. Many of the characterized QQ molecules are enzymes with the ability to degrade signaling molecules. They can also impede cellular signaling cascades. There are different techniques used for testing QS/QQ, including chromatography-mass spectroscopy, bioluminescence, chemiluminescence, fluorescence, electrochemistry, and colorimetry. They all enable qualitative and quantitative measurements of QS/QQ molecules. This article gathers the information about the mechanisms of QS and QQ, and their effect on microbial biofilm formation. Basic methods used to study QS/QQ, as well as the medical and biotechnological applications of QQ, are also described. Basis research methods are also described as well as medical and biotechnological application.

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Section: Biotechnological Applicationmentioning

confidence: 99%

Prevention of biofilm formation by quorum quenching

Paluch

Rewak‐Soroczyńska

Jędrusik

et al. 2020

Appl Microbiol Biotechnol

303

151

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“…This manuscript describes the new properties of biofilm bacteria, activity under acidic and anaerobic conditions, and the requirements for enzymatic modification. Zhang, Lee, Yu, Mameda, and Choo (2019) studied synergistic antibacterial effects using a high-capacity membrane embedded with graphene-based nanomaterials. A two-step grafting process was applied to fabricate the membrane.…”

Section: Impact Of Nutrients Nanomaterial Toxicity and Other Factorsmentioning

confidence: 99%

“…The results indicated that biofoulant detection by the excitation-emission matrix images is more effective than monitoring the transmembrane pressure to hinder membrane fouling. Zhang, Lee, et al (2019), reported the observation and efficacy of long-wave UV photolysis with quorum sensing in order to study a new antibiofouling strategy for membrane bioreactors (MBR). In this study, UV radiation reduced membrane fouling more efficiently than bacterial quorum quenching by Rhodococcus sp.…”

Section: Biofoulingmentioning

confidence: 99%

“…The microbial community analysis indicated that the contaminants had a significant effect on the microbial distribution in the BTF. Zhang, Lee, et al (2019), Zhang, Zhou, et al (2019), Zhang, Du, et al (2019), Zhang, Chen, et al (2019), Zhang, Liu, et al (2019) studied the performance and microbial evolution of toluene degradation using a fungi-based biotrickling filter (BTF) under different conditions. The fungal BTF showed 92.5% removal of toluene at toluene loading rates ranging from 7.0 to 100.9 g m −3 hr −1 at steady-state conditions.…”

Section: Trickling Filtermentioning

confidence: 99%

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Biological fixed‐film systems

Kim

Jae-Hoon

Choi

2020

Water Environment Research

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The technical papers published in 2019 regarding wastewater treatment and microbial films were classified into two categories: biofilm and biofilm reactors. The biofilm category includes biofilm formation, biofilm consortia, bacterial signals, biofouling, extracellular polymeric substances, and biofilm membrane bioreactors. The biofilm reactors category provides recent information on rotating biological contactors, fluidized-bed biofilm reactors, integrated fixed-film activated sludge, moving-bed biofilm reactors, packed-bed biofilm reactors, sequencing biofilm batch reactors, and trickling filters.

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“…After decades of effort, QS regulation has been well understood as a mechanism of bacterial intercellular communication depending on their self-produced extracellular signal molecules, which can accumulate to certain threshold levels that trigger transcription of specific genes and coordinate biological behaviors within bacterial community to survive against stresses, reproduce and function as a key ecological mediator (Even-Tov et al, 2016;Hmelo, 2017). Taking advantage of in-depth studies of QS rules, more insights and solutions are inspired to improve those bacteria-centered environmental applications, for instance, anti-biofouling and wastewater treatment (Lee et al, 2016;Kalia et al, 2019;Yu et al, 2019;Zhang et al, 2019). However, a knowledge gap is still between the molecular mechanism of QS regulation and their biological functions, requesting continuous effort to elucidate the roles of QS in natural ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Degradation of Pyrethroids by the Quorum Sensing-Regulated Carboxylesterase of Bacillus subtilis BSF01

Xiao

et al. 2020

Front. Bioeng. Biotechnol.

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The well-studied quorum sensing (QS) mechanism has established a complex knowledge system of how microorganisms behave collectively in natural ecosystems, which contributes to bridging the gap between the ecological functions of microbial communities and the molecular mechanisms of cell-to-cell communication. In particular, the ability of agrochemical degradation has been one most attractive potential of functional bacteria, but the interaction and mutual effects of intracellular degradation and intraspecific behavior remained unclear. In this study, we establish a connection between QS regulation and biodegradation by harnessing the previously isolated Bacillus subtilis BSF01 as a template which degrades various pyrethroids. First, we characterize the genetic and transcriptional basis of comA-involved QS system in B. subtilis BSF01 since the ComQXPA circuit coordinates group behaviors in B. subtilis isolates. Second, the genetic and transcriptional details of pyrethroid-degrading carboxylesterase CesB are defined, and its catalytic capacity is evaluated under different conditions. More importantly, we adopt DNA pull-down and yeast one-hybrid techniques to reveal that the enzymatic degradation of pyrethroids is initiated through QS signal regulator ComA binding to carboxylesterase gene cesB, highlighting the synergistic effect of QS regulation and pyrethroid degradation in B. subtilis BSF01. Taken together, the elucidated mechanism provides novel details on the intercellular response of functional bacteria against xenobiotic exposure, which opens up possibilities to facilitate the in-situ contaminant bioremediation via combining the QS-mediated strategies.

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Photolytic quorum quenching: A new anti-biofouling strategy for membrane bioreactors

Cited by 33 publications

References 57 publications

Prevention of biofilm formation by quorum quenching

Prevention of biofilm formation by quorum quenching

Biological fixed‐film systems

Synergistic Degradation of Pyrethroids by the Quorum Sensing-Regulated Carboxylesterase of Bacillus subtilis BSF01

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