Long-term increase in snow depth leads to compositional changes in arctic ectomycorrhizal fungal communities.
Identifieur interne : 001131 ( Main/Corpus ); précédent : 001130; suivant : 001132Long-term increase in snow depth leads to compositional changes in arctic ectomycorrhizal fungal communities.
Auteurs : Luis N. Morgado ; Tatiana A. Semenova ; Jeffrey M. Welker ; Marilyn D. Walker ; Erik Smets ; J Zsef GemlSource :
- Global change biology [ 1365-2486 ] ; 2016.
English descriptors
- KwdEn :
- MESH :
- chemical : Soil.
- Alaska, Arctic Regions, Mycorrhizae, Snow, Tundra.
Abstract
Many arctic ecological processes are regulated by soil temperature that is tightly interconnected with snow cover distribution and persistence. Recently, various climate-induced changes have been observed in arctic tundra ecosystems, e.g. shrub expansion, resulting in reduction in albedo and greater C fixation in aboveground vegetation as well as increased rates of soil C mobilization by microbes. Importantly, the net effects of these shifts are unknown, in part because our understanding of belowground processes is limited. Here, we focus on the effects of increased snow depth, and as a consequence, increased winter soil temperature on ectomycorrhizal (ECM) fungal communities in dry and moist tundra. We analyzed deep DNA sequence data from soil samples taken at a long-term snow fence experiment in Northern Alaska. Our results indicate that, in contrast with previously observed responses of plants to increased snow depth at the same experimental site, the ECM fungal community of the dry tundra was more affected by deeper snow than the moist tundra community. In the dry tundra, both community richness and composition were significantly altered while in the moist tundra, only community composition changed significantly while richness did not. We observed a decrease in richness of Tomentella, Inocybe and other taxa adapted to scavenge the soil for labile N forms. On the other hand, richness of Cortinarius, and species with the ability to scavenge the soil for recalcitrant N forms, did not change. We further link ECM fungal traits with C soil pools. If future warmer atmospheric conditions lead to greater winter snow fall, changes in the ECM fungal community will likely influence C emissions and C fixation through altering N plant availability, fungal biomass and soil-plant C-N dynamics, ultimately determining important future interactions between the tundra biosphere and atmosphere.
DOI: 10.1111/gcb.13294
PubMed: 27004610
Links to Exploration step
pubmed:27004610Le document en format XML
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Box 9517, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Faculty of Science, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation></author><author><name sortKey="Welker, Jeffrey M" sort="Welker, Jeffrey M" uniqKey="Welker J" first="Jeffrey M" last="Welker">Jeffrey M. Welker</name><affiliation><nlm:affiliation>Department of Biological Sciences, University of Alaska Anchorage, Anchorage, AK, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Walker, Marilyn D" sort="Walker, Marilyn D" uniqKey="Walker M" first="Marilyn D" last="Walker">Marilyn D. Walker</name><affiliation><nlm:affiliation>HOMER Energy, 1790 30th St, Suite 100, Boulder, CO, 80301, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Smets, Erik" sort="Smets, Erik" uniqKey="Smets E" first="Erik" last="Smets">Erik Smets</name><affiliation><nlm:affiliation>Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Faculty of Science, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Plant Conservation and Population Biology, KU Leuven, Kasteelpark Arenberg 31, Box 2437, 3001, Leuven, Belgium.</nlm:affiliation></affiliation></author><author><name sortKey="Geml, J Zsef" sort="Geml, J Zsef" uniqKey="Geml J" first="J Zsef" last="Geml">J Zsef Geml</name><affiliation><nlm:affiliation>Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Faculty of Science, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2016">2016</date><idno type="RBID">pubmed:27004610</idno><idno type="pmid">27004610</idno><idno type="doi">10.1111/gcb.13294</idno><idno type="wicri:Area/Main/Corpus">001131</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001131</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Long-term increase in snow depth leads to compositional changes in arctic ectomycorrhizal fungal communities.</title><author><name sortKey="Morgado, Luis N" sort="Morgado, Luis N" uniqKey="Morgado L" first="Luis N" last="Morgado">Luis N. Morgado</name><affiliation><nlm:affiliation>Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Section for Genetics and Evolutionary Biology (Evogene), Department of Biosciences, University of Oslo, P.O. Box 1066 Blindern, NO-0316, Oslo, Norway.</nlm:affiliation></affiliation></author><author><name sortKey="Semenova, Tatiana A" sort="Semenova, Tatiana A" uniqKey="Semenova T" first="Tatiana A" last="Semenova">Tatiana A. Semenova</name><affiliation><nlm:affiliation>Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Faculty of Science, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation></author><author><name sortKey="Welker, Jeffrey M" sort="Welker, Jeffrey M" uniqKey="Welker J" first="Jeffrey M" last="Welker">Jeffrey M. Welker</name><affiliation><nlm:affiliation>Department of Biological Sciences, University of Alaska Anchorage, Anchorage, AK, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Walker, Marilyn D" sort="Walker, Marilyn D" uniqKey="Walker M" first="Marilyn D" last="Walker">Marilyn D. Walker</name><affiliation><nlm:affiliation>HOMER Energy, 1790 30th St, Suite 100, Boulder, CO, 80301, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Smets, Erik" sort="Smets, Erik" uniqKey="Smets E" first="Erik" last="Smets">Erik Smets</name><affiliation><nlm:affiliation>Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Faculty of Science, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Plant Conservation and Population Biology, KU Leuven, Kasteelpark Arenberg 31, Box 2437, 3001, Leuven, Belgium.</nlm:affiliation></affiliation></author><author><name sortKey="Geml, J Zsef" sort="Geml, J Zsef" uniqKey="Geml J" first="J Zsef" last="Geml">J Zsef Geml</name><affiliation><nlm:affiliation>Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Faculty of Science, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Global change biology</title><idno type="eISSN">1365-2486</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alaska (MeSH)</term><term>Arctic Regions (MeSH)</term><term>Mycorrhizae (MeSH)</term><term>Snow (MeSH)</term><term>Soil (MeSH)</term><term>Tundra (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Soil</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Alaska</term><term>Arctic Regions</term><term>Mycorrhizae</term><term>Snow</term><term>Tundra</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Many arctic ecological processes are regulated by soil temperature that is tightly interconnected with snow cover distribution and persistence. Recently, various climate-induced changes have been observed in arctic tundra ecosystems, e.g. shrub expansion, resulting in reduction in albedo and greater C fixation in aboveground vegetation as well as increased rates of soil C mobilization by microbes. Importantly, the net effects of these shifts are unknown, in part because our understanding of belowground processes is limited. Here, we focus on the effects of increased snow depth, and as a consequence, increased winter soil temperature on ectomycorrhizal (ECM) fungal communities in dry and moist tundra. We analyzed deep DNA sequence data from soil samples taken at a long-term snow fence experiment in Northern Alaska. Our results indicate that, in contrast with previously observed responses of plants to increased snow depth at the same experimental site, the ECM fungal community of the dry tundra was more affected by deeper snow than the moist tundra community. In the dry tundra, both community richness and composition were significantly altered while in the moist tundra, only community composition changed significantly while richness did not. We observed a decrease in richness of Tomentella, Inocybe and other taxa adapted to scavenge the soil for labile N forms. On the other hand, richness of Cortinarius, and species with the ability to scavenge the soil for recalcitrant N forms, did not change. We further link ECM fungal traits with C soil pools. If future warmer atmospheric conditions lead to greater winter snow fall, changes in the ECM fungal community will likely influence C emissions and C fixation through altering N plant availability, fungal biomass and soil-plant C-N dynamics, ultimately determining important future interactions between the tundra biosphere and atmosphere.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">27004610</PMID><DateCompleted><Year>2017</Year><Month>07</Month><Day>31</Day></DateCompleted><DateRevised><Year>2018</Year><Month>12</Month><Day>02</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-2486</ISSN><JournalIssue CitedMedium="Internet"><Volume>22</Volume><Issue>9</Issue><PubDate><Year>2016</Year><Month>09</Month></PubDate></JournalIssue><Title>Global change biology</Title><ISOAbbreviation>Glob Chang Biol</ISOAbbreviation></Journal><ArticleTitle>Long-term increase in snow depth leads to compositional changes in arctic ectomycorrhizal fungal communities.</ArticleTitle><Pagination><MedlinePgn>3080-96</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/gcb.13294</ELocationID><Abstract><AbstractText>Many arctic ecological processes are regulated by soil temperature that is tightly interconnected with snow cover distribution and persistence. Recently, various climate-induced changes have been observed in arctic tundra ecosystems, e.g. shrub expansion, resulting in reduction in albedo and greater C fixation in aboveground vegetation as well as increased rates of soil C mobilization by microbes. Importantly, the net effects of these shifts are unknown, in part because our understanding of belowground processes is limited. Here, we focus on the effects of increased snow depth, and as a consequence, increased winter soil temperature on ectomycorrhizal (ECM) fungal communities in dry and moist tundra. We analyzed deep DNA sequence data from soil samples taken at a long-term snow fence experiment in Northern Alaska. Our results indicate that, in contrast with previously observed responses of plants to increased snow depth at the same experimental site, the ECM fungal community of the dry tundra was more affected by deeper snow than the moist tundra community. In the dry tundra, both community richness and composition were significantly altered while in the moist tundra, only community composition changed significantly while richness did not. We observed a decrease in richness of Tomentella, Inocybe and other taxa adapted to scavenge the soil for labile N forms. On the other hand, richness of Cortinarius, and species with the ability to scavenge the soil for recalcitrant N forms, did not change. We further link ECM fungal traits with C soil pools. If future warmer atmospheric conditions lead to greater winter snow fall, changes in the ECM fungal community will likely influence C emissions and C fixation through altering N plant availability, fungal biomass and soil-plant C-N dynamics, ultimately determining important future interactions between the tundra biosphere and atmosphere.</AbstractText><CopyrightInformation>© 2016 The Authors. Global Change Biology Published by John Wiley & Sons Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Morgado</LastName><ForeName>Luis N</ForeName><Initials>LN</Initials><AffiliationInfo><Affiliation>Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA, Leiden, The Netherlands.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Section for Genetics and Evolutionary Biology (Evogene), Department of Biosciences, University of Oslo, P.O. Box 1066 Blindern, NO-0316, Oslo, Norway.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Semenova</LastName><ForeName>Tatiana A</ForeName><Initials>TA</Initials><AffiliationInfo><Affiliation>Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA, Leiden, The Netherlands.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Faculty of Science, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Welker</LastName><ForeName>Jeffrey M</ForeName><Initials>JM</Initials><AffiliationInfo><Affiliation>Department of Biological Sciences, University of Alaska Anchorage, Anchorage, AK, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Walker</LastName><ForeName>Marilyn D</ForeName><Initials>MD</Initials><AffiliationInfo><Affiliation>HOMER Energy, 1790 30th St, Suite 100, Boulder, CO, 80301, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Smets</LastName><ForeName>Erik</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA, Leiden, The Netherlands.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Faculty of Science, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Plant Conservation and Population Biology, KU Leuven, Kasteelpark Arenberg 31, Box 2437, 3001, Leuven, Belgium.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Geml</LastName><ForeName>József</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA, Leiden, The Netherlands.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Faculty of Science, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><DataBankList CompleteYN="Y"><DataBank><DataBankName>GENBANK</DataBankName><AccessionNumberList><AccessionNumber>KJ792685</AccessionNumber><AccessionNumber>KP827673</AccessionNumber><AccessionNumber>KP828017</AccessionNumber></AccessionNumberList></DataBank></DataBankList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2016</Year><Month>06</Month><Day>08</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Glob Chang Biol</MedlineTA><NlmUniqueID>9888746</NlmUniqueID><ISSNLinking>1354-1013</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000413" MajorTopicYN="N">Alaska</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001110" MajorTopicYN="N">Arctic Regions</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="Y">Mycorrhizae</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012914" MajorTopicYN="Y">Snow</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D065929" MajorTopicYN="N">Tundra</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">ITEX</Keyword><Keyword MajorTopicYN="Y">Toolik Lake</Keyword><Keyword MajorTopicYN="Y">arctic ecology</Keyword><Keyword MajorTopicYN="Y">climate changes</Keyword><Keyword MajorTopicYN="Y">fungal ecology</Keyword><Keyword MajorTopicYN="Y">snow fence</Keyword><Keyword MajorTopicYN="Y">snow pack</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2015</Year><Month>09</Month><Day>03</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2016</Year><Month>01</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2016</Year><Month>03</Month><Day>02</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2016</Year><Month>3</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2016</Year><Month>3</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2017</Year><Month>8</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">27004610</ArticleId><ArticleId IdType="doi">10.1111/gcb.13294</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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