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The aim is to understand how prophage Pf4, quorum sensing, and metabolic states affect phage-biofilm interactions in Pseudomonas aeruginosa.

April 10, 2026BacteriophageOpen Access

Prophage Pf4, quorum sensing, and metabolic state shape phage responses in Pseudomonas aeruginosa biofilms

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The aim is to understand how prophage Pf4, quorum sensing, and metabolic states affect phage-biofilm interactions in Pseudomonas aeruginosa.
Examined biofilm-phage interactions through laboratory experiments
Used two lytic phages (NP3 and M32) on various P. aeruginosa biofilms
Compared efficacy of phages on PAO1 strains and its ΔPf4 mutant
Investigated roles of quorum sensing genes and metabolic states
Assessed biofilm responses to phage treatment over different ages.
Prophage Pf4 and quorum sensing provide protective effects against lytic phages
Older biofilms exhibit increased resistance to phages due to low metabolic activity
Differences in phage efficacy based on biofilm age and genetic makeup were documented.

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Reveals how prophage Pf4 and metabolic states affect phage responses in Pseudomonas aeruginosa biofilms, suggesting new treatment strategies.

Aagaard et al. (2026) studied this question.

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Reveals how prophage Pf4 and metabolic states affect phage responses in Pseudomonas aeruginosa biofilms, suggesting new treatment strategies.