a novel , covalently-closed circular dna species of 6.9 kb was detected in four of 12 strains of pichia membranaefaciens . plasmid dna ( 2 micron ) ( that is ccc dna of approximately 6 kb in saccharomyces cerevisiae ) was detected in 38 of 40 strains of sacch . cerevisiae confirming reports of the widespread distribution of this plasmid .
C0000702
a
C0012854
dna