Assessment of new environmental quorum quenching bacteria as a solution for membrane biofouling

Gül, Bahar Yavuztürk; Koyuncu, İsmail

doi:10.1016/j.procbio.2017.05.030

Cited by 38 publications

(7 citation statements)

References 42 publications

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“…Using selected bacterial strains with the ability to degrade QS molecules is crucial. Yavuztürk Gül and Koyuncu (2017) reported QQ activity of Bacillus sp. (Yavuztürk Gül and Koyuncu 2017).…”

Section: Biotechnological Applicationmentioning

confidence: 99%

Prevention of biofilm formation by quorum quenching

Paluch

Rewak‐Soroczyńska

Jędrusik

et al. 2020

Appl Microbiol Biotechnol

277

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

277

151

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“…Based on our previous study (Wang et al, 2021a), the mixture was centrifuged at 6000 rpm for 5 seconds to remove geotextile pieces and particles. The supernatant was centrifuged at 3000 rpm for 4 minutes, and the bacteria pellet was resuspended in 5 mL PBS; these processes were repeated three times (Yavuztürk Gül and Koyuncu, 2017). Afterward, 200 μL of suspensions were inoculated into a minimal medium supplemented with 2.5 mM C 6 –HSL or C 8 –HSL as the sole carbon source and incubated at 35 ± 2°C for 3 days (150 rpm).…”

Section: Methodsmentioning

confidence: 99%

Isolation and characterization of quorum quenching bacteria from municipal solid waste and bottom ash co-disposal landfills

et al. 2023

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Co-landfilling of bottom ash (BA) accelerates the clogging of leachate collection systems (LCSs) and increases the risk of landfill failure. The clogging was mainly associated with bio-clogging, which may be reduced by quorum quenching (QQ) strategies. This communication reports on a study of how isolated facultative QQ bacterial strains from municipal solid waste (MSW) landfills and BA co-disposal landfills. In MSW landfills, two novel QQ strains ( Brevibacillus agri and Lysinibacillus sp. YS11) can degrade the signal molecule hexanoyl-l-homoserine lactone (C6–HSL) and octanoyl-l-homoserine lactone (C8–HSL), respectively. Pseudomonas aeruginosa could degrade C6–HSL and C8–HSL in BA co-disposal landfills. Moreover, P. aeruginosa (0.98) was observed with a higher growth rate (OD600) compared to that of B. agri (0.27) and Lysinibacillus sp. YS11 (0.53). These results indicated that the QQ bacterial strains were associated with leachate characteristics and signal molecules and could be used for controlling bio-clogging in landfills.

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“…This surface behavior detrimentally affects diverse activities such as wastewater treatment, marine transport, or aquaculture. Wastewater treatment is welladvanced in QQ applications, especially for protecting membrane bioreactors (MBRs) from biofilm formation using whole bacteria (123,124) or QQ enzymes. Mainly, the porcine kidney acylase was used to reduce biofilm formation in MBR systems.…”

Section: Biofouling/biocorrosionmentioning

confidence: 99%

Engineering acyl-homoserine lactone-interfering enzymes toward bacterial control

Billot

Plener

Jacquet

et al. 2020

Journal of Biological Chemistry

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Enzymes able to degrade or modify acyl-homoserine lactones (AHL) have drawn considerable interest for their ability to interfere with the bacterial communication process referred to as Quorum Sensing (QS). Many proteobacteria use AHL to coordinate virulence and biofilm formation in a cell density-dependent manner, thus AHL-interfering enzymes constitute new promising antimicrobial candidates. Among these, lactonases and acylases, have been particularly studied. These enzymes have been isolated from various bacterial, archaeal or eukaryotic organisms and have been evaluated for their ability to control several pathogens. Engineering studies on these enzymes were carried out and successfully modulated their capacity to interact with specific AHL, increase their catalytic activity and stability or enhance their biotechnological potential. In this review, special attention is paid to the screening, engineering and applications of AHL-modifying enzymes. Prospects and future opportunities are also discussed with view to developing potent candidates for bacterial control.

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Assessment of new environmental quorum quenching bacteria as a solution for membrane biofouling

Cited by 38 publications

References 42 publications

Prevention of biofilm formation by quorum quenching

Prevention of biofilm formation by quorum quenching

Isolation and characterization of quorum quenching bacteria from municipal solid waste and bottom ash co-disposal landfills

Engineering acyl-homoserine lactone-interfering enzymes toward bacterial control

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