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Quantification of ammonia-oxidizing bacteria in arable soil by real-time PCR
Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine, Medical Microbiology.
2001 (English)In: Applied and Environmental Microbiology, ISSN 0099-2240, Vol. 67, no 2, 972-976 p.Article in journal (Refereed) Published
Abstract [en]

Real-time PCR was used to quantify populations of ammonia-oxidizing bacteria representing the ▀ subdivision of the class Proteobacteria in samples of arable soil, both nitrogen fertilized and unfertilized, from Mellby, Sweden. Primers and probes targeting a 16S ribosomal DNA region of the ammonia-oxidizing bacteria were designed and used. In the fertilized soil there were ~6.2 x 107 ammonia-oxidizing bacteria per g of soil, three times more than the number of bacteria in the unfertilized soil. The lyric efficiency of bead beating in these soils was investigated by using populations of free or loosely attached bacteria, bacteria tightly bound to particles, and bacteria in nonfractionated samples. The shapes of the curves generated in these tests showed that the concentration of template DNA released at various times remained constant after 10 to 100 s of bead beating.

Place, publisher, year, edition, pages
2001. Vol. 67, no 2, 972-976 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-26020DOI: 10.1128/AEM.67.2.972-976.2001Local ID: 10473OAI: diva2:246568
Available from: 2009-10-08 Created: 2009-10-08 Last updated: 2011-01-13

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Lindgren, Per-Eric
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