scholarly journals Quorum Sensing N-acyl Homoserine Lactones-SdiA Suppresses Escherichia coli-Pseudomonas aeruginosa Conjugation through Inhibiting traI Expression

2017 ◽  
Vol 7 ◽  
Author(s):  
Yang Lu ◽  
Jianming Zeng ◽  
Binning Wu ◽  
Shunmei E ◽  
Lina Wang ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Pseudomonas Aeruginosa ◽  
Quorum Sensing ◽  
Homoserine Lactones ◽  
Acyl Homoserine Lactones

Screening and anti-virulent study of N-acyl homoserine lactones DNA aptamers against Pseudomonas aeruginosa quorum sensing

2013 ◽  
Vol 18 (2) ◽  
pp. 406-412 ◽  
Author(s):  
Zu Guo Zhao ◽  
Yun Mei Yu ◽  
Bi Yu Xu ◽  
Shuang Shuang Yan ◽  
Jun Fa Xu ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Quorum Sensing ◽  
Dna Aptamers ◽  
Homoserine Lactones ◽  
Acyl Homoserine Lactones

Structure of the Escherichia coli Quorum Sensing Protein SdiA: Activation of the Folding Switch by Acyl Homoserine Lactones

2006 ◽  
Vol 355 (2) ◽  
pp. 262-273 ◽  
Author(s):  
Yong Yao ◽  
Maria A. Martinez-Yamout ◽  
Tobin J. Dickerson ◽  
Andrew P. Brogan ◽  
Peter E. Wright ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Quorum Sensing ◽  
Homoserine Lactones ◽  
Acyl Homoserine Lactones

scholarly journals Quorum Sensing and Spoilage Potential of Psychrotrophic Enterobacteriaceae Isolated from Milk

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Maurilio Lopes Martins ◽  
Uelinton Manoel Pinto ◽  
Katharina Riedel ◽  
Maria Cristina Dantas Vanetti
Keyword(s):  
Escherichia Coli ◽  
Quorum Sensing ◽  
16S Rdna ◽  
Aeromonas Hydrophila ◽  
Vibrio Harveyi ◽  
Raw Milk ◽  
Homoserine Lactone ◽  
Positive Control ◽  
Homoserine Lactones ◽  
Acyl Homoserine Lactones

The 16S rDNA of six psychrotrophic Enterobacteriaceae isolated from cold raw milk were sequenced and the isolate 039 was identified asPantoeasp., isolates 059, 068, and 071 were identified asHafnia alvei, 067 was identified asEnterobactersp., and 099 was identified asAeromonas hydrophila. They presented different spoilage potentials in milk withA. hydrophila099 being the most deteriorative. OnlyPantoeasp. 039 was not able to induce the quorum sensing monitor strains of acyl homoserine lactones (AHLs). ThehalIgene, which encodes the AHL synthase inH. alvei, was identified in the isolates 059, 067, 068, and 071. After initial sequencing characterization and cloning, this gene showed its function by the heterologous synthesis of N-hexanoyl-DL-homoserine lactone and N-3-oxohexanoyl-L-homoserine lactone inEscherichia coli. In addition to producing AHLs,A. hydrophila099 produced AI-2 in higher level than the assay’s positive controlVibrio harveyiBB120. Therefore, Enterobacteriaceae strains isolated from cooled raw milk produce a rich array of signaling molecules that may influence bacterial traits in the milk environment.

Triazole-containing N-acyl homoserine lactones targeting the quorum sensing system in Pseudomonas aeruginosa

2015 ◽  
Vol 23 (7) ◽  
pp. 1638-1650 ◽  
Author(s):  
Mette R. Hansen ◽  
Tim H. Jakobsen ◽  
Claus G. Bang ◽  
Anders Emil Cohrt ◽  
Casper L. Hansen ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Quorum Sensing ◽  
Homoserine Lactones ◽  
Sensing System ◽  
Acyl Homoserine Lactones ◽  
Quorum Sensing System

Growth of Salmonella Enteritidis in the presence of quorum sensing signaling compounds produced by Pseudomonas aeruginosa

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Weijia He ◽  
Huamei Yang ◽  
Xiang Wang ◽  
Hongmei Li ◽  
Qingli Dong
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Quorum Sensing ◽  
Salmonella Enteritidis ◽  
Culture Supernatant ◽  
Lag Time ◽  
Bacterial Communication ◽  
Homoserine Lactones ◽  
Positive Effects ◽  
Kinetics Of

Abstract Quorum sensing (QS) can exist in food-related bacteria and potentially affect bacterial growth through acyl-homoserine lactones (AHLs). To verify the role of QS compounds in the cell-free supernatant, this study examined the effect of supernatant extracted from Pseudomonas aeruginosa culture on the growth kinetics of Salmonella Enteritidis. The results showed that the lag time (λ) of S. Enteritidis was apparently reduced (p < 0.05) under the influence of P. aeruginosa culture supernatant compared with the S. Enteritidis culture supernatant. HPLC-MS/MS test demonstrated that AHLs secreted by P. aeruginosa were mainly C14-HSL with a content of 85.71 μg/mL and a small amount of 3-oxo-C12-HSL. In addition, the commercially synthetic C14-HSL had positive effects on the growth of S. Enteritidis, confirming once again that the growth of S. Enteritidis was affected by AHL metabolized by other bacteria and the complexity of bacterial communication.

Influence of the d/l configuration of N-acyl-homoserine lactones (AHLs) and analogues on their Lux-R dependent quorum sensing activity

2018 ◽  
Vol 77 ◽  
pp. 215-222 ◽  
Author(s):  
Si-Zhe Li ◽  
Rui Xu ◽  
Mohammed Ahmar ◽  
Catherine Goux-Henry ◽  
Yves Queneau ◽  
...  
Keyword(s):  
Quorum Sensing ◽  
Homoserine Lactones ◽  
Acyl Homoserine Lactones
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