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Integrated lysis procedures reduce extraction biases of microbial DNA from mangrove sediment

Paper ID Volume ID Publish Year Pages File Format Full-Text
21054 43204 2011 5 PDF Available
Title
Integrated lysis procedures reduce extraction biases of microbial DNA from mangrove sediment
Abstract

Sufficient lysis of soil or sediment microbes is a critical step for analyzing microbial community structures and for preparing metagenomic DNA libraries. The present study compared lysis methods for recovering archaeal, bacterial, actinomycete, and fungal DNAs from a mangrove sediment sample. PCR results showed that individual procedures using SDS, lysozyme, sonication, freeze–thaw, microwave, and vigorous shaking could extract archaeal or bacterial DNA but failed for actinomycetes or fungi cells. In comparison, an integrated lysis procedure using SDS, lysozyme, and vigorous shaking successfully obtained fungal DNA, and a combination of SDS, lysozyme, vigorous shaking, and microwave treatments recovered DNA from actinomycetes. Denaturing gradient gel electrophoresis (DGGE) results showed that although single lysis procedures can lyse bacterial DNA, all of them assessed the indigenous bacterial community structure with significant biases. The integrated lysis protocols described in the present study could be useful for extracting DNA from various types of sediments.

Keywords
DNA extraction; DNA quality; Denaturing gradient gel electrophoresis (DGGE); Microbial community structure
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Integrated lysis procedures reduce extraction biases of microbial DNA from mangrove sediment
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 111, Issue 2, February 2011, Pages 153–157
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us