FIG. 1.
Gel electrophoresis of restriction endonuclease digests of 16S rDNAs of P. luminescens strains. Lanes: 1, 100-bp molecular size marker; 2, negative control; 3, Hb/1 (ATCC 29999T) symbiotic strain; 4, negative control; 5 through 9, U.S. clinical strains 3265.86, 2617.87, 1216.79, 3105.77, and 2407.88, respectively; 10, negative control; 11 through 14, Australian clinical strains 4, 2, 3, and 1, respectively; 15, negative control; 16 through 18, symbiotic strains D1/1, C1/1, and Meg/1, respectively; 19, negative control; 20, P. vulgaris ATCC 49132. Restriction patterns for the Australian clinical strains are similar to one another, as are those for the U.S. clinical strains, but differences between the two groups are evident with restriction enzymes AluI and CfoI.