A quorum-sensing molecule from Pseudomonas aeruginosa induces defensive multicellularity in a coinfecting pathogen

Proceedings of the National Academy of Sciences, Volume 123, Issue 4, January 2026. <br/>SignificanceBacteria frequently inhabit polymicrobial environments, where interactions with other species can alter bacterial behaviors, but such interactions and the underlying mechanisms remain understudied. We investigated interactions between the …