title: The presence, type and role of N-acyl homoserine lactone quorum sensing in fluorescent Pseudomonas originally isolated from rice rhizospheres are unpredictable.
abstract: In Gram-negative bacteria, a typical quorum-sensing (QS) system involves the production and response to N-acyl homoserine lactones (AHLs). It still remains unclear as to how pivotal and conserved AHL QS is in root-colonizing rhizosphere Pseudomonas. We, therefore, performed a systematic study of AHL QS on a set of 50 rice rhizosphere Pseudomonas isolates. We also isolated the AHL QS genes in two representative strains and analyzed the role of AHL QS regulation of various phenotypes. Our results are discussed with the current knowledge of AHL QS of rhizosphere Pseudomonas, implicating a lack of conservation and an unpredictable role played by AHL QS in this group of bacteria.
authors.forename: Laura
authors.initials: L
authors.lastname: Steindler
authors.forename: Iris
authors.initials: I
authors.lastname: Bertani
authors.forename: Luisa
authors.initials: L
authors.lastname: De Sordi
authors.forename: Joseph
authors.initials: J
authors.lastname: Bigirimana
authors.forename: Vittorio
authors.initials: V
authors.lastname: Venturi
mesh_terms: D054742:Acyl-Butyrolactones / Q000378:metabolism*; D005453:Fluorescence; D012275:Oryza / Q000382:microbiology*; D018517:Plant Roots / Q000382:microbiology*; D011549:Pseudomonas / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology*; D053038:Quorum Sensing
chemical_list: D054742:Acyl-Butyrolactones