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Artículo

Anti-quorum sensing and antimicrobial activity of aromatic species from South America

Pellegrini, María CelesteIcon ; Alvarez, María VictoriaIcon ; Ponce, Alejandra GracielaIcon ; Cugnata, Noelia MelinaIcon ; de Piano, Fiorella GiselleIcon ; Fuselli, Sandra Rosa
Fecha de publicación: 07/2014
Editorial: Allured Publ Corp
Revista: Journal of Essential Oil Research
ISSN: 1041-2905
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Biología Celular, Microbiología

Resumen

Quorum sensing (QS) is a bacterial communication mechanism that depends on population density. The interruption of QS is one example of an antipathogenic effect. We investigated the anti-QS and antimicrobial properties of essential oils from Argentina: Salvia officinalis, Minthostachys mollis, Satureja odora, Schinus molle, Lepechinia floribunda and Artemisia annua. Anti-QS activity was determined by measuring the production of violacein in Chromobacterium violaceum through UV–visible spectrophotometry and the minimal QS inhibitory concentration (MQSIC) was calculated. The antimicrobial activity was determined using Escherichia coli, Listeria innocua and Staphylococcus aureus as indicators. Minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) were determined by performing the broth microdilution assay. Minthostachys mollis showed statistically significant QS inhibition properties. This essential oil reduced pigment production by 90% when it was applied at a sublethal concentration (0.02% v/v). Conversely, the highest bacteriostatic and bactericidal activity was exhibited by S. molle oil. Minthostachys mollis essential oil is a good candidate for the development of anti-QS products with a potential application in the control of bacterial diseases mediated by QS. As this strategy interferes with the expression of pathogenic traits rather than killing the microorganism or impeding microbial growth, it avoids the problem of resistance.
Palabras clave: Chromobacterium violaceum , Escherichia coli , essential oils , quorum sensing
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/101467
URL: https://www.tandfonline.com/doi/abs/10.1080/10412905.2014.947387
DOI: https://doi.org/10.1080/10412905.2014.947387
Colecciones
Articulos(CCT - MAR DEL PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - MAR DEL PLATA
Citación
Pellegrini, María Celeste; Alvarez, María Victoria; Ponce, Alejandra Graciela; Cugnata, Noelia Melina; de Piano, Fiorella Giselle; et al.; Anti-quorum sensing and antimicrobial activity of aromatic species from South America; Allured Publ Corp; Journal of Essential Oil Research; 26; 6; 7-2014; 458-465
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