Title 선별표지로 plasmid를 이용한 pseudomonas spp.의 원형질체 융합
Author 이주실 · 이미란 · 이영록
Address 고려대학교 이과대학 생물학과
Bibliography Korean Journal of Microbiology, 26(4),298-304, 1988
DOI
Key Words Pseudomonas, spheroplast fusion, R plasmid
Abstract Antibiotic resistance plasmids (RP4, pMG1, R679 and R91-5) were used as primary selective markers to detect the fusants in Pseudomonas spp. By using plasmid marker, clones containing both plasmids of parental strains were obtained as fusants by direct selection. The spheroplast fusion was occured not only between strains of interspecies, but also between strains of intergenus such as Pseudomonas and E. coli. The frequencies of fusant formation were variable from 1.8×10^-1 to 6.0×10^-4. In addition, chromosomal recombinants were formed among the clones with both parental plasmids in frequencies of 0.44-1.3%. The fusant formation frequency between interspecies of intraspecies was not different markedly, but stability of plasmids in fusants correlated with the phylogenic smilarity of the parental strains.
Download PDF Kor_260403_298-304p.pdf