title: Oryza sativa rice plants contain molecules that activate different quorum-sensing N-acyl homoserine lactone biosensors and are sensitive to the specific AiiA lactonase.
abstract: Gram-negative bacteria most often use N-acyl homoserine lactones (AHLs) as intercellular quorum-sensing signal molecules. In this study, it was demonstrated that rice plants contain AHL mimic molecules that are very sensitive to the highly specific AiiA lactonase enzyme and can activate three different AHL bacterial biosensors, indicating that the compounds have a homoserine lactone structure and could be AHLs. The possible source and biological significance of this finding are discussed.
authors.affiliation: Bacteriology Group, International Centre for Genetic Engineering & Biotechnology, Padriciano, Trieste, Italy.
authors.forename: Giuliano
authors.initials: G
authors.lastname: Degrassi
authors.forename: Giulia
authors.initials: G
authors.lastname: Devescovi
authors.forename: Renando
authors.initials: R
authors.lastname: Solis
authors.forename: Laura
authors.initials: L
authors.lastname: Steindler
authors.forename: Vittorio
authors.initials: V
authors.lastname: Venturi
mesh_terms: D015107:4-Butyrolactone / Q000031:analogs & derivatives* / Q000378:metabolism; D001426:Bacterial Proteins / Q000378:metabolism; D015374:Biosensing Techniques; D004926:Escherichia coli / Q000378:metabolism; D015964:Gene Expression Regulation, Bacterial; D008666:Metalloendopeptidases / Q000378:metabolism*; D012275:Oryza / Q000737:chemistry* / Q000378:metabolism / Q000382:microbiology*; D018515:Plant Leaves / Q000737:chemistry / Q000378:metabolism; D018547:Plant Stems / Q000737:chemistry / Q000378:metabolism; D053038:Quorum Sensing; D015398:Signal Transduction
chemical_list: D001426:Bacterial Proteins; C088386:homoserine lactone; D008666:Metalloendopeptidases; D015107:4-Butyrolactone