Comparison of five commercial DNA extraction kits for the recovery of Yersinia pestis DNA from bacterial suspensions and spiked environmental samples
Article first published online: 22 MAY 2009
Journal compilation © 2009 The Society for Applied Microbiology. No claim to US government works
Journal of Applied Microbiology
Volume 108, Issue 1, pages 163–172, January 2010
How to Cite
Dauphin, L.A., Stephens, K.W., Eufinger, S.C. and Bowen, M.D. (2010), Comparison of five commercial DNA extraction kits for the recovery of Yersinia pestis DNA from bacterial suspensions and spiked environmental samples. Journal of Applied Microbiology, 108: 163–172. doi: 10.1111/j.1365-2672.2009.04404.x
- Issue published online: 10 DEC 2009
- Article first published online: 22 MAY 2009
- 2009/0284: received 12 February 2009, revised 22 April 2009 and accepted 13 May 2009
- DNA extraction;
- Yersinia pestis
Aim: To evaluate commercial DNA extraction kits for their ability to isolate DNA from Yersinia pestis suspensions and spiked environmental samples.
Methods and Results: Five commercially available DNA extraction kits were evaluated: the ChargeSwitch gDNA Mini Bacteria Kit, the IT 1-2-3 Sample DNA Purification Kit, the MasterPure Complete DNA and RNA Purification Kit, the QIAamp DNA Blood Mini Kit and the UltraClean Microbial DNA Isolation Kit. The extraction methods were performed upon six Y. pestis strains and spiked environmental specimens, including three swab types and one powder type. Taqman real-time PCR analysis revealed that the use of the MasterPure kit resulted in DNA with the most consistently positive results and the lowest limit of detection from Y. pestis suspensions and spiked environmental samples.
Conclusion: Comparative evaluations of the five commercial DNA extraction methods indicated that the MasterPure kit was superior for the isolation of PCR-amplifiable DNA from Y. pestis suspensions and spiked environmental samples.
Significance and Impact of the Study: The results of this study can assist diagnostic laboratories with selecting the best extraction method for processing environmental specimens for subsequent detection of Y. pestis by real-time PCR.