The plant pathogen Erwinia amylovora produces acyl-homoserine lactone signal molecules in vitro and in planta |
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Authors: | Venturi Vittorio Venuti Chiara Devescovi Giulia Lucchese Carla Friscina Arianna Degrassi Giuliano Aguilar Claudio Mazzucchi Umberto |
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Institution: | Bacteriology Group, International Centre for Genetic Engineering and Biotechnology, Area Science Park, Padriciano 99, 34012 Trieste, Italy. venturi@icgeb.org |
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Abstract: | We report for the first time the production of acyl homoserine lactones (AHLs) by Erwina amylovora, an important quarantine bacterial pathogen that causes fire blight in plants. E. amylovora produces one N-acyl homoserine lactone a N-(3-oxo-hexanoyl)-homoserine lactone or a N-(3-hydroxy-hexanoyl)-homoserine lactone] quorum sensing signal molecule both in vitro and in planta (pear plant). Given the involvement of AHLs in plant pathogenesis, we speculate that AHL-dependent quorum sensing could play an important role in the regulation of E. amylovora virulence. |
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Keywords: | Quorum sensing Erwinia amylovora Acyl-homoserine lactone Fire blight |
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