The Ti plasmid of Agrobacterium tumefaciens harbors an attM-paralogous gene,aiiB, also encoding N-Acyl homoserine lactonase activity |
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| Authors: | Carlier A Uroz S Smadja B Fray R Latour X Dessaux Y Faure D |
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| Affiliation: | Institut des Sciences du Végétal, Centre National de la Recherche Scientifique, Gif-sur-Yvette, France. |
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| Abstract: | The Agrobacterium tumefaciens C58 genome contains three putative N-acyl homoserine lactone (acyl-HSL) hydrolases, which are closely related to the lactonase AiiA of BACILLUS: When expressed in Escherichia coli, two of the putative acyl-HSL hydrolases, AttM and AiiB, conferred the ability to degrade acyl-HSLs on the host. In Erwinia strain 6276, the lactonases reduced the endogenous acyl-HSL level and the bacterial virulence in planta. |
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