Experimentally altered rainfall regimes and host root traits affect grassland arbuscular mycorrhizal fungal communities.
Identifieur interne : 000972 ( Main/Corpus ); précédent : 000971; suivant : 000973Experimentally altered rainfall regimes and host root traits affect grassland arbuscular mycorrhizal fungal communities.
Auteurs : Coline Deveautour ; Suzanne Donn ; Sally A. Power ; Alison E. Bennett ; Jeff R. PowellSource :
- Molecular ecology [ 1365-294X ] ; 2018.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Phosphorus.
- geographic : Australia.
- growth & development : Mycorrhizae, Plant Roots.
- microbiology : Plant Roots.
- physiology : Mycobiome.
- Climate Change, Ecosystem, Grassland, Phenotype, Rain, Soil Microbiology, Trees.
Abstract
Future climate scenarios predict changes in rainfall regimes. These changes are expected to affect plants via effects on the expression of root traits associated with water and nutrient uptake. Associated microorganisms may also respond to these new precipitation regimes, either directly in response to changes in the soil environment or indirectly in response to altered root trait expression. We characterized arbuscular mycorrhizal (AM) fungal communities in an Australian grassland exposed to experimentally altered rainfall regimes. We used Illumina sequencing to assess the responses of AM fungal communities associated with four plant species sampled in different watering treatments and evaluated the extent to which shifts were associated with changes in root traits. We observed that altered rainfall regimes affected the composition but not the richness of the AM fungal communities, and we found distinctive communities in the increased rainfall treatment. We found no evidence of altered rainfall regime effects via changes in host physiology because none of the studied traits were affected by changes in rainfall. However, specific root length was observed to correlate with AM fungal richness, while concentrations of phosphorus and calcium in root tissue and the proportion of root length allocated to fine roots were correlated to community composition. Our study provides evidence that climate change and its effects on rainfall may influence AM fungal community assembly, as do plant traits related to plant nutrition and water uptake. We did not find evidence that host responses to altered rainfall drive AM fungal community assembly in this grassland ecosystem.
DOI: 10.1111/mec.14536
PubMed: 29443420
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pubmed:29443420Le document en format XML
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Power</name><affiliation><nlm:affiliation>Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Bennett, Alison E" sort="Bennett, Alison E" uniqKey="Bennett A" first="Alison E" last="Bennett">Alison E. Bennett</name><affiliation><nlm:affiliation>Department of Evolution, Ecology, & Organismal Biology The Ohio State University, 318 W. 12th Ave., 300 Aronoff Laboratory, Columbus OH, 43210.</nlm:affiliation></affiliation></author><author><name sortKey="Powell, Jeff R" sort="Powell, Jeff R" uniqKey="Powell J" first="Jeff R" last="Powell">Jeff R. Powell</name><affiliation><nlm:affiliation>Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2018">2018</date><idno type="RBID">pubmed:29443420</idno><idno type="pmid">29443420</idno><idno type="doi">10.1111/mec.14536</idno><idno type="wicri:Area/Main/Corpus">000972</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000972</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Experimentally altered rainfall regimes and host root traits affect grassland arbuscular mycorrhizal fungal communities.</title><author><name sortKey="Deveautour, Coline" sort="Deveautour, Coline" uniqKey="Deveautour C" first="Coline" last="Deveautour">Coline Deveautour</name><affiliation><nlm:affiliation>Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Donn, Suzanne" sort="Donn, Suzanne" uniqKey="Donn S" first="Suzanne" last="Donn">Suzanne Donn</name><affiliation><nlm:affiliation>Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Power, Sally A" sort="Power, Sally A" uniqKey="Power S" first="Sally A" last="Power">Sally A. Power</name><affiliation><nlm:affiliation>Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Bennett, Alison E" sort="Bennett, Alison E" uniqKey="Bennett A" first="Alison E" last="Bennett">Alison E. Bennett</name><affiliation><nlm:affiliation>Department of Evolution, Ecology, & Organismal Biology The Ohio State University, 318 W. 12th Ave., 300 Aronoff Laboratory, Columbus OH, 43210.</nlm:affiliation></affiliation></author><author><name sortKey="Powell, Jeff R" sort="Powell, Jeff R" uniqKey="Powell J" first="Jeff R" last="Powell">Jeff R. Powell</name><affiliation><nlm:affiliation>Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Molecular ecology</title><idno type="eISSN">1365-294X</idno><imprint><date when="2018" type="published">2018</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Australia (MeSH)</term><term>Climate Change (MeSH)</term><term>Ecosystem (MeSH)</term><term>Grassland (MeSH)</term><term>Mycobiome (physiology)</term><term>Mycorrhizae (growth & development)</term><term>Phenotype (MeSH)</term><term>Phosphorus (metabolism)</term><term>Plant Roots (growth & development)</term><term>Plant Roots (microbiology)</term><term>Rain (MeSH)</term><term>Soil Microbiology (MeSH)</term><term>Trees (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Phosphorus</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Australia</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Mycorrhizae</term><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycobiome</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Climate Change</term><term>Ecosystem</term><term>Grassland</term><term>Phenotype</term><term>Rain</term><term>Soil Microbiology</term><term>Trees</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Future climate scenarios predict changes in rainfall regimes. These changes are expected to affect plants via effects on the expression of root traits associated with water and nutrient uptake. Associated microorganisms may also respond to these new precipitation regimes, either directly in response to changes in the soil environment or indirectly in response to altered root trait expression. We characterized arbuscular mycorrhizal (AM) fungal communities in an Australian grassland exposed to experimentally altered rainfall regimes. We used Illumina sequencing to assess the responses of AM fungal communities associated with four plant species sampled in different watering treatments and evaluated the extent to which shifts were associated with changes in root traits. We observed that altered rainfall regimes affected the composition but not the richness of the AM fungal communities, and we found distinctive communities in the increased rainfall treatment. We found no evidence of altered rainfall regime effects via changes in host physiology because none of the studied traits were affected by changes in rainfall. However, specific root length was observed to correlate with AM fungal richness, while concentrations of phosphorus and calcium in root tissue and the proportion of root length allocated to fine roots were correlated to community composition. Our study provides evidence that climate change and its effects on rainfall may influence AM fungal community assembly, as do plant traits related to plant nutrition and water uptake. We did not find evidence that host responses to altered rainfall drive AM fungal community assembly in this grassland ecosystem.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">29443420</PMID><DateCompleted><Year>2019</Year><Month>05</Month><Day>01</Day></DateCompleted><DateRevised><Year>2019</Year><Month>05</Month><Day>01</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-294X</ISSN><JournalIssue CitedMedium="Internet"><Volume>27</Volume><Issue>8</Issue><PubDate><Year>2018</Year><Month>04</Month></PubDate></JournalIssue><Title>Molecular ecology</Title><ISOAbbreviation>Mol Ecol</ISOAbbreviation></Journal><ArticleTitle>Experimentally altered rainfall regimes and host root traits affect grassland arbuscular mycorrhizal fungal communities.</ArticleTitle><Pagination><MedlinePgn>2152-2163</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/mec.14536</ELocationID><Abstract><AbstractText>Future climate scenarios predict changes in rainfall regimes. These changes are expected to affect plants via effects on the expression of root traits associated with water and nutrient uptake. Associated microorganisms may also respond to these new precipitation regimes, either directly in response to changes in the soil environment or indirectly in response to altered root trait expression. We characterized arbuscular mycorrhizal (AM) fungal communities in an Australian grassland exposed to experimentally altered rainfall regimes. We used Illumina sequencing to assess the responses of AM fungal communities associated with four plant species sampled in different watering treatments and evaluated the extent to which shifts were associated with changes in root traits. We observed that altered rainfall regimes affected the composition but not the richness of the AM fungal communities, and we found distinctive communities in the increased rainfall treatment. We found no evidence of altered rainfall regime effects via changes in host physiology because none of the studied traits were affected by changes in rainfall. However, specific root length was observed to correlate with AM fungal richness, while concentrations of phosphorus and calcium in root tissue and the proportion of root length allocated to fine roots were correlated to community composition. Our study provides evidence that climate change and its effects on rainfall may influence AM fungal community assembly, as do plant traits related to plant nutrition and water uptake. We did not find evidence that host responses to altered rainfall drive AM fungal community assembly in this grassland ecosystem.</AbstractText><CopyrightInformation>© 2018 John Wiley & Sons Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Deveautour</LastName><ForeName>Coline</ForeName><Initials>C</Initials><Identifier Source="ORCID">0000-0001-6887-0414</Identifier><AffiliationInfo><Affiliation>Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Donn</LastName><ForeName>Suzanne</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Power</LastName><ForeName>Sally A</ForeName><Initials>SA</Initials><AffiliationInfo><Affiliation>Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bennett</LastName><ForeName>Alison E</ForeName><Initials>AE</Initials><AffiliationInfo><Affiliation>Department of Evolution, Ecology, & Organismal Biology The Ohio State University, 318 W. 12th Ave., 300 Aronoff Laboratory, Columbus OH, 43210.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Powell</LastName><ForeName>Jeff R</ForeName><Initials>JR</Initials><AffiliationInfo><Affiliation>Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2018</Year><Month>03</Month><Day>12</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Mol Ecol</MedlineTA><NlmUniqueID>9214478</NlmUniqueID><ISSNLinking>0962-1083</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>27YLU75U4W</RegistryNumber><NameOfSubstance UI="D010758">Phosphorus</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001315" MajorTopicYN="N" Type="Geographic">Australia</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D057231" MajorTopicYN="N">Climate Change</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="N">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D065948" MajorTopicYN="Y">Grassland</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000072761" MajorTopicYN="N">Mycobiome</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010641" MajorTopicYN="N">Phenotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010758" MajorTopicYN="N">Phosphorus</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011891" MajorTopicYN="N">Rain</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="Y">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">climate change</Keyword><Keyword MajorTopicYN="Y">community assembly</Keyword><Keyword MajorTopicYN="Y">plant-microbe interactions</Keyword><Keyword MajorTopicYN="Y">root chemistry</Keyword><Keyword MajorTopicYN="Y">root morphology</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2017</Year><Month>12</Month><Day>19</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2018</Year><Month>02</Month><Day>04</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2018</Year><Month>02</Month><Day>07</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2018</Year><Month>2</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2019</Year><Month>5</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate 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