Growth on nitrate and occurrence of nitrate reductase-encoding genes in a phylogenetically diverse range of ectomycorrhizal fungi.
Identifieur interne : 002B84 ( Main/Corpus ); précédent : 002B83; suivant : 002B85Growth on nitrate and occurrence of nitrate reductase-encoding genes in a phylogenetically diverse range of ectomycorrhizal fungi.
Auteurs : Cajsa M R. Nygren ; Ursula Eberhardt ; Magnus Karlsson ; Jeri L. Parrent ; Björn D. Lindahl ; Andy F S. TaylorSource :
- The New phytologist [ 1469-8137 ] ; 2008.
English descriptors
- KwdEn :
- Ammonia (analysis), Biomass (MeSH), DNA Primers (MeSH), Fungi (chemistry), Fungi (genetics), Fungi (growth & development), Fungi (metabolism), Gene Expression (MeSH), Molecular Sequence Data (MeSH), Mycelium (metabolism), Mycorrhizae (genetics), Mycorrhizae (metabolism), Nitrate Reductase (genetics), Nitrates (metabolism), Nitrites (analysis), Nitrogen (analysis), Sequence Analysis, DNA (MeSH).
- MESH :
- chemical , analysis : Ammonia, Nitrites, Nitrogen.
- chemistry : Fungi.
- genetics : Fungi, Mycorrhizae, Nitrate Reductase.
- growth & development : Fungi.
- metabolism : Fungi, Mycelium, Mycorrhizae, Nitrates.
- Biomass, DNA Primers, Gene Expression, Molecular Sequence Data, Sequence Analysis, DNA.
Abstract
Ectomycorrhizal (ECM) fungi are often considered to be most prevalent under conditions where organic sources of N predominate. However, ECM fungi are increasingly exposed to nitrate from anthropogenic sources. Currently, the ability of ECM fungi to metabolize this nitrate is poorly understood. Here, growth was examined among 106 isolates, representing 68 species, of ECM fungi on nitrate as the sole N source. In addition, the occurrence of genes coding for the nitrate reductase enzyme (nar gene) in a broad range of ectomycorrhizal fungi was investigated. All isolates grew on nitrate, but there was a strong taxonomic signature in the biomass production, with the Russulaceae and Amanita showing the lowest growth. Thirty-five partial nar sequences were obtained from 43 tested strains comprising 31 species and 10 genera. These taxa represent three out of the four clades of the Agaricales within which ECM fungi occur. No nar sequences were recovered from the Russulaceae and Amanita, but Southern hybridization showed that the genes were present. The results demonstrate that the ability to utilize nitrate as an N source is widespread in ECM fungi, even in those fungi from boreal forests where the supply of nitrate may be very low.
DOI: 10.1111/j.1469-8137.2008.02618.x
PubMed: 18783355
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pubmed:18783355Le document en format XML
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Parrent</name></author><author><name sortKey="Lindahl, Bjorn D" sort="Lindahl, Bjorn D" uniqKey="Lindahl B" first="Björn D" last="Lindahl">Björn D. Lindahl</name></author><author><name sortKey="Taylor, Andy F S" sort="Taylor, Andy F S" uniqKey="Taylor A" first="Andy F S" last="Taylor">Andy F S. 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Cajsa.Nygren@mykopat.slu.se</nlm:affiliation></affiliation></author><author><name sortKey="Eberhardt, Ursula" sort="Eberhardt, Ursula" uniqKey="Eberhardt U" first="Ursula" last="Eberhardt">Ursula Eberhardt</name></author><author><name sortKey="Karlsson, Magnus" sort="Karlsson, Magnus" uniqKey="Karlsson M" first="Magnus" last="Karlsson">Magnus Karlsson</name></author><author><name sortKey="Parrent, Jeri L" sort="Parrent, Jeri L" uniqKey="Parrent J" first="Jeri L" last="Parrent">Jeri L. Parrent</name></author><author><name sortKey="Lindahl, Bjorn D" sort="Lindahl, Bjorn D" uniqKey="Lindahl B" first="Björn D" last="Lindahl">Björn D. Lindahl</name></author><author><name sortKey="Taylor, Andy F S" sort="Taylor, Andy F S" uniqKey="Taylor A" first="Andy F S" last="Taylor">Andy F S. Taylor</name></author></analytic><series><title level="j">The New phytologist</title><idno type="eISSN">1469-8137</idno><imprint><date when="2008" type="published">2008</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ammonia (analysis)</term><term>Biomass (MeSH)</term><term>DNA Primers (MeSH)</term><term>Fungi (chemistry)</term><term>Fungi (genetics)</term><term>Fungi (growth & development)</term><term>Fungi (metabolism)</term><term>Gene Expression (MeSH)</term><term>Molecular Sequence Data (MeSH)</term><term>Mycelium (metabolism)</term><term>Mycorrhizae (genetics)</term><term>Mycorrhizae (metabolism)</term><term>Nitrate Reductase (genetics)</term><term>Nitrates (metabolism)</term><term>Nitrites (analysis)</term><term>Nitrogen (analysis)</term><term>Sequence Analysis, DNA (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Ammonia</term><term>Nitrites</term><term>Nitrogen</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Fungi</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Fungi</term><term>Mycorrhizae</term><term>Nitrate Reductase</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Fungi</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Fungi</term><term>Mycelium</term><term>Mycorrhizae</term><term>Nitrates</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomass</term><term>DNA Primers</term><term>Gene Expression</term><term>Molecular Sequence Data</term><term>Sequence Analysis, DNA</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Ectomycorrhizal (ECM) fungi are often considered to be most prevalent under conditions where organic sources of N predominate. However, ECM fungi are increasingly exposed to nitrate from anthropogenic sources. Currently, the ability of ECM fungi to metabolize this nitrate is poorly understood. Here, growth was examined among 106 isolates, representing 68 species, of ECM fungi on nitrate as the sole N source. In addition, the occurrence of genes coding for the nitrate reductase enzyme (nar gene) in a broad range of ectomycorrhizal fungi was investigated. All isolates grew on nitrate, but there was a strong taxonomic signature in the biomass production, with the Russulaceae and Amanita showing the lowest growth. Thirty-five partial nar sequences were obtained from 43 tested strains comprising 31 species and 10 genera. These taxa represent three out of the four clades of the Agaricales within which ECM fungi occur. No nar sequences were recovered from the Russulaceae and Amanita, but Southern hybridization showed that the genes were present. The results demonstrate that the ability to utilize nitrate as an N source is widespread in ECM fungi, even in those fungi from boreal forests where the supply of nitrate may be very low.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18783355</PMID><DateCompleted><Year>2009</Year><Month>03</Month><Day>03</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1469-8137</ISSN><JournalIssue CitedMedium="Internet"><Volume>180</Volume><Issue>4</Issue><PubDate><Year>2008</Year></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Growth on nitrate and occurrence of nitrate reductase-encoding genes in a phylogenetically diverse range of ectomycorrhizal fungi.</ArticleTitle><Pagination><MedlinePgn>875-89</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1469-8137.2008.02618.x</ELocationID><Abstract><AbstractText>Ectomycorrhizal (ECM) fungi are often considered to be most prevalent under conditions where organic sources of N predominate. However, ECM fungi are increasingly exposed to nitrate from anthropogenic sources. Currently, the ability of ECM fungi to metabolize this nitrate is poorly understood. Here, growth was examined among 106 isolates, representing 68 species, of ECM fungi on nitrate as the sole N source. In addition, the occurrence of genes coding for the nitrate reductase enzyme (nar gene) in a broad range of ectomycorrhizal fungi was investigated. All isolates grew on nitrate, but there was a strong taxonomic signature in the biomass production, with the Russulaceae and Amanita showing the lowest growth. Thirty-five partial nar sequences were obtained from 43 tested strains comprising 31 species and 10 genera. These taxa represent three out of the four clades of the Agaricales within which ECM fungi occur. No nar sequences were recovered from the Russulaceae and Amanita, but Southern hybridization showed that the genes were present. The results demonstrate that the ability to utilize nitrate as an N source is widespread in ECM fungi, even in those fungi from boreal forests where the supply of nitrate may be very low.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Nygren</LastName><ForeName>Cajsa M R</ForeName><Initials>CM</Initials><AffiliationInfo><Affiliation>Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, PO Box 7026, SE-750 07 Uppsala, Sweden. 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