Abstract
A rapid, simple method is used that yields amplifiable fungal and bacterial DNAs directly from soil. DNA is separated from soil contaminants by electrophoresis in low-melting-temperature agarose and used directly in polymerase chain reaction amplification. Fifty 20-mg samples can be processed in one day. Fragments of 16S and 18S ribosomal RNAs are amplified by polymerase chain reaction with DNA extracted from the soil. Universal primers are used that are capable of amplifying ribosomal DNA from a wide variety of bacteria and fungi. Eubacterial and fungal primers are used that are capable of distinguishing between eubacterial and fungal DNAs. Restriction enzyme digests are performed on amplified DNA fragments from five soil samples.
Similar content being viewed by others
Literature Cited
Edwards K, Johnstone C, Thompson C (1991) A simple and rapid method for the preparation of plant genomic DNA for PCR analysis. Nucleic Acids Res 19:1349
Giovannoni SJ, Britschgi TB, Moyer CL, Field KG (1990) Genetic diversity in Sargasso Sea bacterioplankton. Nature 344:60–63
Neefs J-M, Van de Peer Y, Hendriks L, De Wachter R (1990) Compilation of small ribosomal subunit RNA sequences. Nucleic Acids Res 18:2237–2330
Porteous LA, Armstrong JL (1991) Recovery of bulk DNA from soil by a rapid, small-scale extraction method. Curr Microbiol 22:345–348
Rochelle PA, Olson BH (1991) A simple technique for electro-elution of DNA from environmental samples. Bio Techniques 11:724–728
Schmidt TM, DeLong EF, Pace NR (1991) Analysis of a marine picoplankton community by 16S rRNA gene cloning and sequencing. J Bacteriol 173:4371–4378
Steffan RJ, Atlas RM (1991) Polymerase chain reaction: applications in environmental microbiology. Annu Rev Microbiol 45:137–161
White TJ, Bruns T, Lee S, Taylor J (1990) Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. In: Innis MA, Gelfand DH, Sninsky JJ, White TJ (eds) PCR protocols: a guide to methods and applications. New York: Academic Press, pp 315–322
Zintz CB, Beebe DC (1991) Rapid reamplification of PCR products purified in low melting point agarose gels. Bio Techniques 11:158–162
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Porteous, L.A., Armstrong, J.L. A simple mini-method to extract DNA directly from soil for use with polymerase chain reaction amplification. Current Microbiology 27, 115–118 (1993). https://doi.org/10.1007/BF01570868
Issue Date:
DOI: https://doi.org/10.1007/BF01570868