ArticleApplied and environmental microbiology2009
Diversity of nirK denitrifying genes and transcripts in an agricultural soil.
Article in Applied and environmental microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Effects of Simulated Precipitation Treatment on Denitrifying Microbial Communities in the Wayan Mountains.Biology · 2026Article
- Co-association of Two nir Denitrifiers Under the Influence of Emergent Macrophytes.Microbial ecology · 2020Article
- Effects of water-saving irrigation on emissions of greenhouse gases and prokaryotic communities in rice paddy soil.Microbial ecology · 2014Article
- FunGene: the functional gene pipeline and repository.Frontiers in microbiology · 2013Article
- Soil nitrate reducing processes - drivers, mechanisms for spatial variation, and significance for nitrous oxide production.Frontiers in microbiology · 2012Article
- Identification of active denitrifiers in rice paddy soil by DNA- and RNA-based analyses.Microbes and environments · 2012Article
- Extraction of bacterial RNA from soil: challenges and solutions.Microbes and environments · 2012Review
- Microbiology of nitrogen cycle in animal manure compost.Microbial biotechnology · 2011Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Environmental conditions can change dramatically over a crop season and among locations in an agricultural field and can increase denitrification and emissions of the potent greenhouse gas nitrous oxide. In a previous study, changes in the overall size of the denitrifier community in a potato crop field were relatively small and did not correlate with variations in environmental conditions or denitrification rates. However, denitrifying bacteria are taxonomically diverse, and different members of the community may respond differently to environmental changes. The objective of this research was to understand which portion of the nirK denitrifying community is active and contributes to denitrification under conditions in a potato crop field. Denaturing gradient gel electrophoresis (DGGE) of nirK genes in soil-extracted DNA showed changes in the composition of the nirK denitrifier community over the growing season and among spatial locations in the field. By contrast, the composition of the active nirK denitrifier community, as determined by DGGE analysis of nirK transcripts derived from soil-extracted mRNA, changed very little over time, although differences in the relative abundance of some specific transcripts were observed between locations. Our results indicate that the soil denitrifier populations bearing nirK genes are not all contributing to denitrification and that the denitrifying populations that are active are among the most abundant and ubiquitous nirK-bearing denitrifiers. Changes in the community composition of the total and active nirK denitrifiers were not strongly correlated with changes in environmental factors and denitrification activity.
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