TY - JOUR
T1 - Quorum-sensing effects in the antagonistic rhizosphere bacterium Serratia plymuthica HRO-C48
AU - Müller, Henry
AU - Westendorf, Christian
AU - Leitner, Erich
AU - Chernin, L.
AU - Riedel, Kathrin
AU - Eberl, Leo
AU - Berg, Gabriele
AU - Schmidt , Silvia
PY - 2009/5/1
Y1 - 2009/5/1
N2 - The rhizosphere-associated bacterium Serratia plymuthica HRO-C48 is not only able to suppress symptoms caused by soil-borne pathogens but is also able to stimulate growth of plants. Detailed knowledge about the underlying mechanisms and regulation are crucial for the application in biocontrol strategies. To analyse the influence of N-acyl homoserine lactone (AHL)-mediated communication on the biocontrol activity, the AHL-degrading lactonase AiiA was heterologously expressed in the strain, resulting in abolished AHL production. The comparative analysis of the wild type and AHL negative mutants led to the identification of new AHL-regulated phenotypes. In the pathosystem Verticillium dahliae–oilseed rape, the essential role of AHL-mediated signaling for disease suppression was demonstrated. In vitro, the regulatory function of AHLs in the synthesis of the plant growth hormone indole-3-acetic acid …
AB - The rhizosphere-associated bacterium Serratia plymuthica HRO-C48 is not only able to suppress symptoms caused by soil-borne pathogens but is also able to stimulate growth of plants. Detailed knowledge about the underlying mechanisms and regulation are crucial for the application in biocontrol strategies. To analyse the influence of N-acyl homoserine lactone (AHL)-mediated communication on the biocontrol activity, the AHL-degrading lactonase AiiA was heterologously expressed in the strain, resulting in abolished AHL production. The comparative analysis of the wild type and AHL negative mutants led to the identification of new AHL-regulated phenotypes. In the pathosystem Verticillium dahliae–oilseed rape, the essential role of AHL-mediated signaling for disease suppression was demonstrated. In vitro, the regulatory function of AHLs in the synthesis of the plant growth hormone indole-3-acetic acid …
U2 - 10.1111/j.1574-6941.2008.00635.x
DO - 10.1111/j.1574-6941.2008.00635.x
M3 - Article
SN - 1574-6941
VL - 67
SP - 468
EP - 478
JO - FEMS Microbiology Ecology
JF - FEMS Microbiology Ecology
IS - 3
ER -