Influence of clove oil on certain quorum-sensing-regulated functions and biofilm of Pseudomonas aeruginosa and Aeromonas hydrophila

被引：116

作者：

Husain, Fohad Mabood ^{[1
]}

Ahmad, Iqbal ^{[1
]}

Asif, Mohammad ^{[2
]}

Tahseen, Qudsia ^{[2
]}

机构：

[1] Aligarh Muslim Univ, Dept Agr Microbiol, Aligarh 202002, Uttar Pradesh, India

[2] Aligarh Muslim Univ, Dept Zool, Aligarh 202002, Uttar Pradesh, India

来源：

JOURNAL OF BIOSCIENCES | 2013年 / 38卷 / 05期

关键词：

Biofilm; C; elegans; clove oil; quorum-sensing inhibition; VIRULENCE FACTORS; MEDICINAL-PLANTS; CAENORHABDITIS-ELEGANS; CELL COMMUNICATION; INHIBITION; IDENTIFICATION; EXPRESSION; SIGNALS; EUGENOL; SYSTEM;

D O I：

10.1007/s12038-013-9385-9

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Quorum sensing (QS) plays an important role in virulence, biofilm formation and survival of many pathogenic bacteria including Pseudomonas aeruginosa. This signalling pathway is considered as novel and promising target for anti-infective agents. In the present investigation, effect of the Sub-MICs of clove oil on QS regulated virulence factors and biofilm formation was evaluated against P. aeruginosa PAO1 and Aeromonas hydrophila WAF-38 strain. Sub-inhibitory concentrations of the clove oil demonstrated statistically significant reduction of las- and rhl-regulated virulence factors such as LasB, total protease, chitinase and pyocyanin production, swimming motility and exopolysaccharide production. The biofilm forming capability of PAO1 and A. hydrophila WAF-38 was also reduced in a concentration-dependent manner at all tested sub-MIC values. Further, the PAO1-preinfected Caenorhabditis elegans displayed an enhanced survival when treated with 1.6% v/v of clove oil. The above findings highlight the promising anti-QS-dependent therapeutic function of clove oil against P. aeruginosa.

引用

页码：835 / 844

页数：10

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