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Related Experiment Video

Updated: Nov 19, 2025

A Hydroponic Co-cultivation System for Simultaneous and Systematic Analysis of Plant/Microbe Molecular Interactions and Signaling

A Hydroponic Co-cultivation System for Simultaneous and Systematic Analysis of Plant/Microbe Molecular Interactions and Signaling

Published on: July 22, 2017

Quorum Sensing Regulation in Phytopathogenic Bacteria.

Julie Baltenneck¹, Sylvie Reverchon¹, Florence Hommais¹

¹Université de Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, CNRS, UMR5240 MAP, F-69622 Villeurbanne CEDEX, France.

|January 27, 2021

Summary

Bacterial quorum sensing (QS) coordinates gene expression for virulence and adaptation. This review details QS systems in key plant pathogens, including N-acyl-homoserine lactone (AHL), diffusible signal factor (DSF), and virulence factor modulating (VFM) systems.

Keywords:

Agrobacterium tumefaciens Dickeya spp.Erwinia amylovora N-acyl-homoserine lactone Pectobacterium spp.Pseudomonas syringae Ralstonia solanacearum Xanthomonas spp.Xylella spp.diffusible signal factor

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Area of Science:

Microbiology
Molecular Biology
Plant Pathology

Background:

Quorum sensing (QS) is a cell-to-cell communication mechanism used by bacteria to regulate gene expression.
Pathogenic bacteria utilize QS to control virulence factors and adapt to environmental changes.
QS systems are crucial for understanding bacterial pathogenesis in plants.

Purpose of the Study:

To review and describe the diverse quorum sensing systems found in phytopathogenic bacteria.
To highlight the specific signal molecules and regulatory mechanisms involved in these QS systems.
To focus on major plant-pathogenic genera such as Pseudomonas, Xanthomonas, and Erwinia.

Main Methods:

Literature review of studies on quorum sensing in phytopathogenic bacteria.
Analysis of characterized QS systems, including N-acyl-homoserine lactone (AHL), diffusible signal factor (DSF), and virulence factor modulating (VFM).
Examination of regulatory mechanisms, targeted functions, and regulation of QS in key bacterial genera.

Main Results:

Detailed description of AHL, DSF, and VFM quorum sensing systems in phytopathogenic bacteria.
Identification of targeted functions, including virulence factor expression and environmental adaptation.
Elucidation of the regulatory mechanisms controlling quorum sensing.

Conclusions:

Quorum sensing is a vital regulatory mechanism in phytopathogenic bacteria.
Understanding these QS systems provides insights into bacterial pathogenicity and potential control strategies.
The review covers major bacterial genera, offering a comprehensive overview of their QS mechanisms.