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Rapid isolation of DNA from Actinomyces.
O Barsotti1, F Renaud, J Freney
1Laboratoire de Microbiologie-Immunologie, Faculté d'Odontologie, Lyon, France.
Annales De L'Institut Pasteur. Microbiology
|September 1, 1987
Summary
Extracting DNA from Actinomyces bacteria is challenging. A new method using lysozyme, achromopeptidase, and proteinase K effectively lyses these cells for DNA extraction.
Area of Science:
- Microbiology
- Molecular Biology
- Biochemistry
Background:
- Standard lysis methods are ineffective for DNA extraction from Actinomyces species.
- Efficient DNA isolation is crucial for genomic studies and diagnostics.
Purpose of the Study:
- To develop an optimized protocol for rapid DNA extraction from Actinomyces bacteria.
- To evaluate the efficacy of a novel lysis treatment on various bacterial genera.
Main Methods:
- Bacterial cells were treated with lysozyme and achromopeptidase.
- Subsequent treatment involved SDS, proteinase K, and EDTA to achieve cell lysis.
- DNA yield was quantified spectrophotometrically.
Main Results:
- The developed method successfully lysed 7 different Actinomyces strains.
- Significant DNA yield (337 µg per 200 mg cells) was achieved within one day.
- The protocol demonstrated effectiveness on Veillonella, Staphylococcus, Fusobacterium, and Bifidobacterium.
Conclusions:
- This optimized lysis protocol provides an efficient method for DNA extraction from challenging bacterial genera, including Actinomyces.
- The technique offers a valuable tool for molecular research and clinical applications requiring bacterial DNA.