Note] Inhibition of quorum sensing in Pseudomonas aeruginosa by two herbal essential oils from Apiaceae family

Ehsan Sepahi; Saeed Tarighi; Farajollah Shahriari Ahmadi; Abdolreza Bagheri

doi:10.1007/s12275-015-4203-8

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Note] Inhibition of quorum sensing in Pseudomonas aeruginosa by two herbal essential oils from Apiaceae family: Ehsan Sepahi ¹, Saeed Tarighi ², Farajollah Shahriari Ahmadi ¹, Abdolreza Bagheri ¹; Journal of Microbiology 2015;53(2):176-180
DOI: https://doi.org/10.1007/s12275-015-4203-8
Published online: January 5, 2015

¹Department of Biotechnology, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran, ²Laboratory of Phytopathology, Department of Crop Protection, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran¹Department of Biotechnology, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran, ²Laboratory of Phytopathology, Department of Crop Protection, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran

Corresponding author: Saeed Tarighi , Tel: +98-511-8805815,

Received: 2 April 2014 • Revised: 31 October 2014 • Accepted: 14 November 2014

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Abstract

Ferula (Ferula asafoetida L.) and Dorema (Dorema aucheri Bioss.) both from Apiaceae family were tested for their antiquorum sensing (QS) activity against Pseudomonas aeruginosa. Both essential oils exhibited anti-QS activity at 25 μg/ml of concenteration. At this concenteration Ferula fully abolished and Dorema reduced the violacein production by C. violaceum. Pyocyanin, pyoverdine, elastase and biofilm production were decreased in Ferula oil treatments. Dorema oil reduced pyoverdine and elastase production, while pyocyanin and biofilm production were not affacted. Expresion analysis of QS-dependent genes confirmed our phenotypic data. Our data introduced native Dorema and Ferula plants as novel QS and virulence inhibitors.

Keywords: quorum sensing; N-acyl-homoserine lactones; Pseudomonas aeruginosa; Dorema aucheri; Ferula assafoetida; quorum quenching; virulence

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Note] Inhibition of quorum sensing in Pseudomonas aeruginosa by two herbal essential oils from Apiaceae family

J. Microbiol. 2015;53(2):176-180. Published online January 5, 2015

DOI: https://doi.org/10.1007/s12275-015-4203-8

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