Incidence of Plasmids in Thermus spp. Isolated in Yellowstone National Park.
Forty-eight strains of Thermus spp. were isolated from thermal sites in Yellowstone National Park, Wyo., and 62.5% showed evidence of plasmid DNA. Attempts to assign function to the plasmid DNA were unsuccessful, and the presence of plasmid DNA could not be correlated with antibiotic or heavy metal resistance. A number of these cryptic plasmids are now being investigated for their potential as vectors for molecular cloning in Thermus spp.
Munster
M J
MJ
Microbial Technology Laboratory, Public Health Laboratory Service Centre for Applied Microbiology and Research, Porton Down, Salisbury, Wiltshire SP4 OJG, United Kingdom.
Munster
A P
AP
Sharp
R J
RJ