Cited by 84Mycorrhizal Fungi and Plant InteractionsSoil Carbon and Nitrogen DynamicsFungal and yeast genetics research

Community profiling and gene expression of fungal assimilatory nitrate reductases in agricultural soil

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Gorfer, Markus, Blumhoff, Marzena, Klaubauf, Sylvia, Urban, Alexander, Inselsbacher, Erich, Bandian, Dragana, Mitter, Birgit, Sessitsch, Angela +2 more·2011·The ISME Journal

Abstract

Although fungi contribute significantly to the microbial biomass in terrestrial ecosystems, little is known about their contribution to biogeochemical nitrogen cycles. Agricultural soils usually contain comparably high amounts of inorganic nitrogen, mainly in the form of nitrate. Many studies focused on bacterial and archaeal turnover of nitrate by nitrification, denitrification and assimilation, whereas the fungal role remained largely neglected. To enable research on the fungal contribution to the biogeochemical nitrogen cycle tools for monitoring the presence and expression of fungal assimilatory nitrate reductase genes were developed. To the ~100 currently available fungal full-length gene sequences, another 109 partial sequences were added by amplification from individual culture isolates, representing all major orders occurring in agricultural soils. The extended database led to the discovery of new horizontal gene transfer events within the fungal kingdom. The newly developed PCR primers were used to study gene pools and gene expression of fungal nitrate reductases in agricultural soils. The availability of the extended database allowed affiliation of many sequences to known species, genera or families. Energy supply by a carbon source seems to be the major regulator of nitrate reductase gene expression for fungi in agricultural soils, which is in good agreement with the high energy demand of complete reduction of nitrate to ammonium.

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Authors
Gorfer, M., Blumhoff, M., Klaubauf, S., Urban, A., Inselsbacher, E., Bandian, D., Mitter, B., Sessitsch, A., Wanek, W., & Strauss, J.
Affiliations
  • AIT Austrian Institute of Technology GmbH (AT)
  • University of Vienna (AT)
Corresponding author
Gorfer, Markus
Venue
The ISME Journal
Published
2011-05-12
Volume
5
Issue
11
Pages
1771-1783
ISSN
  • 1751-7362 (ISSN-L)
  • 1751-7370
OpenAlex
W2127021655
Cited by
78
References
69
Citations by year
2025: 5 · 2024: 4 · 2023: 9 · 2022: 4 · 2021: 8 · 2020: 6 · 2019: 5 · 2018: 3 · 2017: 4 · 2016: 7 · 2015: 7 · 2014: 7 · 2013: 2 · 2012: 7
FWCI
6.17
Type
journal article
Language
en
Open access
Locations
  • The ISME Journal (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
  • U.S. Department of Energy
  • Broad Institute
  • Joint Genome Institute
  • European Commission
  • Vienna Science and Technology Fund (LS-05-36)
  • Austrian Science Fund (S10003-B17)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Mycorrhizal Fungi and Plant Interactions
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
Keywords
nitrate assimilation, agricultural soils, gene expression, horizontal gene transfer, carbon source regulation, nitrogen biogeochemistry, PCR primers
MeSH terms
Quaternary Ammonium Compounds, Fungi, Genes, Fungal, Nitrate Reductases, Nitrates, Nitrogen, Nitrogen Fixation, Phylogeny, Soil Microbiology, Ecosystem, Biomass

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