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Updated: Jul 18, 2026

The Synergistic Effect of Visible Light and Gentamycin on Pseudomona aeruginosa Microorganisms
Published on: July 2, 2013
Cross-species GacA-controlled induction of antibiosis in pseudomonads
Christophe Dubuis1, Dieter Haas
1Département de Microbiologie Fondamentale, Université de Lausanne, CH-1015 Lausanne, Switzerland.
Abstract:
Signal extracts prepared from culture supernatants of Pseudomonas fluorescens CHA0 and Pseudomonas aeruginosa PAO stimulated GacA-dependent expression of small RNAs and hence of antibiotic compounds in both hosts. Pseudomonas corrugata LMG2172 and P. fluorescens SBW25 also produced signal molecules stimulating GacA-controlled antibiotic synthesis in strain CHA0, illustrating a novel, N-acyl-homoserine lactone-independent type of interspecies communication.
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