Sharp R, Gertman E, Farinha M A, Kropinski A M
Department of Microbiology and Immunology, Queen's University, Kingston, Ontario, Canada.
J Bacteriol. 1990 Jun;172(6):3509-11. doi: 10.1128/jb.172.6.3509-3511.1990.
Plasmids harboring the cos sequences of bacteriophage D3 can be transferred, by bacteriophage D3, into Pseudomonas aeruginosa by a mechanism which is insensitive to DNase. Transducing activity was separated from the plaque-forming particles by CsCl equilibrium gradient centrifugation. Restriction endonuclease digestion patterns suggest that the transducing particles contain plasmid concatemers.
携带噬菌体D3 cos序列的质粒可通过噬菌体D3,以一种对DNA酶不敏感的机制转移到铜绿假单胞菌中。通过氯化铯平衡梯度离心将转导活性与噬菌斑形成颗粒分离。限制性内切酶消化模式表明转导颗粒含有质粒串联体。