Methods for the Detection and Quantification of Quorum-Sensing Signals in Food Spoilage

2019 ◽  
pp. 251-267
Author(s):  
A. M. V. N. Prathyusha ◽  
Harish Annavarapu ◽  
Pallaval Veera Bramhachari
Keyword(s):  
Quorum Sensing ◽  
Food Spoilage ◽  
Quorum Sensing Signals ◽  
Detection And Quantification

Insights into the Role of Quorum Sensing in Food Spoilage

2008 ◽  
Vol 71 (7) ◽  
pp. 1510-1525 ◽  
Author(s):  
MOHAMMED SALIM AMMOR ◽  
CHRISTOS MICHAELIDIS ◽  
GEORGE-JOHN E. NYCHAS
Keyword(s):  
Quorum Sensing ◽  
Enzymatic Activity ◽  
Potential Role ◽  
Cell Communication ◽  
Signaling Molecules ◽  
Food Spoilage ◽  
Associated Bacteria ◽  
Quorum Sensing Inhibitors ◽  
Detection And Quantification

Food spoilage is a consequence of the degrading enzymatic activity of some food-associated bacteria. Several proteolytic, lipolytic, chitinolytic, and pectinolytic activities associated with the deterioration of goods are regulated by quorum sensing, suggesting a potential role of such cell-to-cell communication in food spoilage. Here we review quorum sensing signaling molecules and methods of their detection and quantification, and we provide insights into the role of quorum sensing in food spoilage and address potential quorum sensing inhibitors that might be used as biopreservatives.

The architecture of a mixed fungal–bacterial biofilm is modulated by quorum‐sensing signals

2021 ◽  
Author(s):  
Alberto Ruiz ◽  
Marta Herráez ◽  
Stefanie B. Costa‐Gutierrez ◽  
María Antonia Molina‐Henares ◽  
María Jesús Martínez ◽  
...  
Keyword(s):  
Quorum Sensing ◽  
Bacterial Biofilm ◽  
Quorum Sensing Signals

scholarly journals Roles of cell division control factor SdiA: recognition of quorum sensing signals and modulation of transcription regulation targets

2014 ◽  
Vol 19 (5) ◽  
pp. 405-418 ◽  
Author(s):  
Tomohiro Shimada ◽  
Kaori Shimada ◽  
Makoto Matsui ◽  
Yuichi Kitai ◽  
Jun Igarashi ◽  
...  
Keyword(s):  
Cell Division ◽  
Quorum Sensing ◽  
Transcription Regulation ◽  
Control Factor ◽  
Quorum Sensing Signals ◽  
Cell Division Control

scholarly journals Host modification of a bacterial quorum-sensing signal induces a phenotypic switch in bacterial symbionts

2017 ◽  
Vol 114 (40) ◽  
pp. E8488-E8497 ◽  
Author(s):  
Cleo Pietschke ◽  
Christian Treitz ◽  
Sylvain Forêt ◽  
Annika Schultze ◽  
Sven Künzel ◽  
...  
Keyword(s):  
Quorum Sensing ◽  
Bacterial Communities ◽  
Homoserine Lactone ◽  
Innate Immune ◽  
Expression Data ◽  
Phenotypic Switch ◽  
Host Colonization ◽  
Bacterial Quorum Sensing ◽  
Bacterial Quorum ◽  
Quorum Sensing Signals

Bacterial communities colonize epithelial surfaces of most animals. Several factors, including the innate immune system, mucus composition, and diet, have been identified as determinants of host-associated bacterial communities. Here we show that the early branching metazoan Hydra is able to modify bacterial quorum-sensing signals. We identified a eukaryotic mechanism that enables Hydra to specifically modify long-chain 3-oxo-homoserine lactones into their 3-hydroxy-HSL counterparts. Expression data revealed that Hydra’s main bacterial colonizer, Curvibacter sp., responds differentially to N-(3-hydroxydodecanoyl)-l-homoserine lactone (3OHC12-HSL) and N-(3-oxododecanoyl)-l-homoserine lactone (3OC12-HSL). Investigating the impacts of the different N-acyl-HSLs on host colonization elucidated that 3OHC12-HSL allows and 3OC12-HSL represses host colonization of Curvibacter sp. These results show that an animal manipulates bacterial quorum-sensing signals and that this modification leads to a phenotypic switch in the bacterial colonizers. This mechanism may enable the host to manipulate the gene expression and thereby the behavior of its bacterial colonizers.

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