| Title | Effect of Temperature on Persistence of Recombinant Plasmid pCU103 in Different Waters |
|---|---|
| Author | Kwak, Myong Ja · Kim, Chi Kyung * · Kim, Young Chang · Lim, Jae Yun * · Kim, Young Soo¹ · Lee, Ki Sung² · Min, Kyung Hee³ |
| Address | Department of Microbiology and ¹Pharmacy, Chungbuk National University; ²Department of Biology, Paijai University; ³Department of Biology, Sookmyung Women's University |
| Bibliography | Journal of Microbiology, 33(3),178-183, 1995, |
| DOI | |
| Key Words | Recombinant plasmid, pCU103, persistence, temperature effect, different waters |
| Abstract | The recombinant plasmid of pCU103 constructed by cloning pcbCD genes in pBluescript SK(+) was studied for the effect of temperature on its persistence in different waters by the methods of electrophoresis, Southern hybridization, quantification, and transformation. The plasmid was very rapidly degraded out in non-sterile FW water without regards to water temperature, probably due to the effect of biochemical factor such as nucleases. The pCU103 was most persistent at 4℃ in any water environments, moderately persistant at 15℃, but least stable at 30℃ such results could be explained by the facts that hydrogen bonds in double-stranded plasmid DNAs become unstable and that nucleases are activated by increasing temperature. The intact structure of pCU1-3 was generally observed by gel electrophoresis under the conditions which the plasmid should be 2.0 ng/㎕ or higher in concentration and that about 10² CFU/ml or more transformant cells should be recovered. |
| Download PDF | Eng_330302_178-183p.pdf |