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An efficient method for isolation of plasmid DNA from methylotrophic bacteria
V Brenner1, I Holubová, J Hubácek
1Institute of Microbiology, Czechoslovak Academy of Sciences, Prague.
Folia Microbiologica
|January 1, 1990
Summary
This study introduces an improved method for isolating closed circular plasmid DNA from methylotrophic bacteria. The enhanced cell lysis technique using butanol extraction yields high-quality plasmid DNA for research.
Area of Science:
- Microbiology
- Molecular Biology
- Biochemistry
Background:
- Methylotrophic bacteria are crucial microorganisms with diverse metabolic capabilities.
- Efficient isolation of plasmid DNA is essential for genetic studies and biotechnology.
- Existing methods for plasmid DNA isolation from these bacteria can be inefficient.
Purpose of the Study:
- To develop an improved and efficient method for the isolation of closed circular plasmid DNA from methylotrophic bacteria.
- To enhance the cell lysis step for better DNA recovery.
Main Methods:
- A novel method involving butanol extraction of bacterial cells prior to the application of a lytic agent was employed.
- This technique was applied to soil-isolated methylotrophic bacterial strains.
Main Results:
- The butanol extraction significantly improved cell lysis efficiency.
- Closed circular plasmid DNA of various sizes (7.8, 14, 36, and 200 kb) was successfully purified.
- The method demonstrated effectiveness for isolating cryptic plasmids.
Conclusions:
- The described method provides an effective means for isolating plasmid DNA from methylotrophic bacteria.
- This technique enhances DNA yield and purity, facilitating further molecular analysis.
- The improved lysis protocol is valuable for research involving methylotrophic organisms.