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Updated: May 21, 2026

A Fluorescence-based Method to Study Bacterial Gene Regulation in Infected Tissues
Published on: February 19, 2019
Quorum sensing and expression of virulence in pectobacteria
Lee Põllumaa1, Tiina Alamäe, Andres Mäe
1Department of Genetics, Institute of Molecular and Cell Biology, University of Tartu, Tartu 51010, Estonia. lee.pollumaa@ut.ee
Abstract:
Quorum sensing (QS) is a population density-dependent regulatory mechanism in which gene expression is coupled to the accumulation of a chemical signaling molecule. QS systems are widespread among the plant soft-rotting bacteria. In Pectobacterium carotovorum, at least two QS systems exist being specified by the nature of chemical signals involved. QS in Pectobacterium carotovorum uses N-acylhomoserine lactone (AHL) based, as well as autoinducer-2 (AI-2) dependent signaling systems. This review will address the importance of the QS in production of virulence factors and interaction of QS with other regulatory systems in Pectobacterium carotovorum.
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