RT Journal Article
T1 Quorum sensing versus quenching bacterial isolates obtained from MBR plants treating leachates from municipal solid waste
A1 Soler, Albert
A1 Arregui, Lucía
A1 Arroyo, Miguel
A1 Mendoza, José Antonio
A1 Muras Mora, Andrea
A1 Álvarez, Cristina
A1 García Vera, Cristina
A1 Marquina, Domingo
A1 Santos, Antonio
A1 Serrano, Susana
K1 Quorum sensing
K1 Quorum quenching
K1 AHL
K1 Biofouling
K1 MBR
K1 Wastewater treatment
AB Quorum sensing (QS) is a mechanism dependent on bacterial density. This coordinatedprocess is mediated by the synthesis and the secretion of signal molecules, called autoinducers(AIs). N-acyl-homoserine lactones (AHLs) are the most common AIs that are used by Gram-negativebacteria and are involved in biofilm formation. Quorum Quenching (QQ) is the interference of QS byproducing hydrolyzing enzymes, among other strategies. The main objective of the present studywas to identify QS and QQ strains from MBR wastewater treatment plants. A total of 99 strains wereisolated from two Spanish plants that were intended to treat leachate from municipal solid waste.Five AHL producers were detected using AHL biosensor strains (Chromobacterium violaceum CV026and Agrobacterium tumefaciens NT1). Fifteen strains of seventy-one Gram-positive were capable ofeliminating or reducing at least one AHL activity. The analysis of 16S rRNA gene sequence showedthe importance of the Pseudomonas genus in the production of biofilms and the relevance of the genusBacillus in the disruption of the QS mechanism, in which the potential activity of lactonase or acylaseenzymes was investigated with the aim to contribute to solve biofouling problems and to increasethe useful lifespan of membranes
PB MDPI
YR 2018
FD 2018
LK http://hdl.handle.net/10347/22984
UL http://hdl.handle.net/10347/22984
LA eng
NO Soler, A., Arregui, L., Arroyo, M., Mendoza, J.A., Muras, A., Alvarez, C., et al. (2018). Quorum sensing versus quenching bacterial isolates obtained from MBR plants treating leachates from municipal solid waste. International Journal of Environmental Research and Public Health, vol. 15:1019
NO This work was supported by grant from URBASER S.A. (research fund project Biolix 4155519—201/2014) and also by the Spanish Commission of Science and Technology (CTM2016-76491-P). A.M. was supported by a predoctoral fellowship from the Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia (ED481A-2015/311)
DS Minerva
RD 28 abr 2026