The Ti Plasmid of Agrobacterium tumefaciens Harbors an attM -Paralogous Gene, aiiB , Also Encoding N -Acyl Homoserine Lactonase Activity
Open Access
- 1 August 2003
- journal article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 69 (8) , 4951-4965
- https://doi.org/10.1128/aem.69.8.4989-4993.2003
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.Keywords
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