Characterization of a Copper Resistance Plasmid Conserved in Copper-Resistant Strains of Pseudomonas syringae pv. tomato.
A 35-kilobase plasmid was conserved among 12 copper-resistant strains of Pseudomonas syringae pv. tomato. Restriction patterns of this plasmid from each strain were identical, and a cloned copper resistance gene from 1 strain hybridized to the same location on the 35-kilobase plasmid of all 12 strains.
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Department of Plant Pathology, University of California, Riverside, California 92521.