Cross-Species GacA-Controlled Induction of Antibiosis in Pseudomonads

Author:

Dubuis Christophe1,Haas Dieter1

Affiliation:

1. Département de Microbiologie Fondamentale, Université de Lausanne, CH-1015 Lausanne, Switzerland

Abstract

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.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

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