| bamhi restriction endonuclease analysis of yersinia ruckeri plasmids and their relatedness to the genus yersinia 42- to 47-megadalton plasmid. | the plasmid profile and bamhi restriction pattern of 17 sorbitol-negative and 1 sorbitol-positive french yersinia ruckeri strain of the american type strain were studied. the 17 sorbitol-negative strains and the american strain harbored a 62-megadalton (mda) plasmid with an identical bamhi restriction pattern. southern hybridization indicated that this 62-mda plasmid is common among these various strains. the sorbitol-positive strain had four plasmid bands (70, 62, 32, and 25 mda), and there was ... | 1988 | 3202639 |