Collaboration between a temperate phage and Pseudomonas aeruginosa quorum sensing constrains social cheats

Quorum sensing (QS) enables bacteria such as Pseudomonas aeruginosa to coordinate cooperative activities. How bacteria in cooperating groups can resist infiltration by non-cooperating variants is an emerging area of interest in sociobiology and molecular biology. There have been several recent repor...

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Bibliographic Details
Published in:mBio Vol. 16; no. 11; p. e0236025
Main Authors: Chen, Ruiyi, Traxler, Beth, Kropinski, Andrew M., Greenberg, E. Peter
Format: Journal Article
Language:English
Published: United States American Society for Microbiology 12.11.2025
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ISSN:2150-7511, 2161-2129, 2150-7511
Online Access:Get full text
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Summary:Quorum sensing (QS) enables bacteria such as Pseudomonas aeruginosa to coordinate cooperative activities. How bacteria in cooperating groups can resist infiltration by non-cooperating variants is an emerging area of interest in sociobiology and molecular biology. There have been several recent reports on how QS and certain bacteriophage interact. In some strains of P. aeruginosa , QS can activate phage defense systems. At least one bacteriophage can repress P. aeruginosa QS. Here, we show that a previously undescribed bacteriophage can help cooperating groups of P. aeruginosa resist infiltration by non-cooperating QS mutants. This represents a mutualism in which both the bacteriophage and the P. aeruginosa host benefit at least under certain conditions.
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ISSN:2150-7511
2161-2129
2150-7511
DOI:10.1128/mbio.02360-25