Leaf litter decay rates differ between mycorrhizal groups in temperate, but not tropical, forests.
Identifieur interne : 000720 ( Main/Corpus ); précédent : 000719; suivant : 000721Leaf litter decay rates differ between mycorrhizal groups in temperate, but not tropical, forests.
Auteurs : Adrienne B. Keller ; Richard P. PhillipsSource :
- The New phytologist [ 1469-8137 ] ; 2019.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Nitrogen.
- microbiology : Plant Leaves, Trees.
- physiology : Mycorrhizae.
- Forests, Geography, Tropical Climate.
Abstract
Whereas the primary controls on litter decomposition are well established, we lack a framework for predicting interspecific differences in litter decay within and across ecosystems. Given previous research linking tree mycorrhizal association with carbon and nutrient dynamics, we hypothesized that the two dominant mycorrhizal groups in forests - arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) fungi - differ in litter decomposition rates. We compiled leaf litter chemistry and decay data for AM- and ECM-associating angiosperms and gymnosperms (> 200 species) from temperate and tropical/subtropical, and investigated relationships among decay rates, mycorrhizal association, phylogeny and climate. In temperate forests, AM litters decayed faster than ECM litters, with litter nitrogen and phylogeny best explaining variation in litter decay. In sub/tropical forests, we found no significant difference in litter decay rate between mycorrhizal groups, and variation in decay rates was best explained by litter phosphorus. Our results suggest that knowledge of tree mycorrhizal association may improve predictions of species effects on ecosystem processes, particularly in temperate forests where AM and ECM species commonly co-occur, providing a predictive framework for linking litter quality, organic matter dynamics and nutrient acquisition in forests.
DOI: 10.1111/nph.15524
PubMed: 30299541
Links to Exploration step
pubmed:30299541Le document en format XML
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Third St, Bloomington, IN, 47405, USA.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2019">2019</date><idno type="RBID">pubmed:30299541</idno><idno type="pmid">30299541</idno><idno type="doi">10.1111/nph.15524</idno><idno type="wicri:Area/Main/Corpus">000720</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000720</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Leaf litter decay rates differ between mycorrhizal groups in temperate, but not tropical, forests.</title><author><name sortKey="Keller, Adrienne B" sort="Keller, Adrienne B" uniqKey="Keller A" first="Adrienne B" last="Keller">Adrienne B. Keller</name><affiliation><nlm:affiliation>Department of Biology, Indiana University, Jordan Hall, 1001 E. Third St, Bloomington, IN, 47405, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Phillips, Richard P" sort="Phillips, Richard P" uniqKey="Phillips R" first="Richard P" last="Phillips">Richard P. Phillips</name><affiliation><nlm:affiliation>Department of Biology, Indiana University, Jordan Hall, 1001 E. Third St, Bloomington, IN, 47405, USA.</nlm:affiliation></affiliation></author></analytic><series><title level="j">The New phytologist</title><idno type="eISSN">1469-8137</idno><imprint><date when="2019" type="published">2019</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Forests (MeSH)</term><term>Geography (MeSH)</term><term>Mycorrhizae (physiology)</term><term>Nitrogen (metabolism)</term><term>Plant Leaves (microbiology)</term><term>Trees (microbiology)</term><term>Tropical Climate (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Nitrogen</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Leaves</term><term>Trees</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Forests</term><term>Geography</term><term>Tropical Climate</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Whereas the primary controls on litter decomposition are well established, we lack a framework for predicting interspecific differences in litter decay within and across ecosystems. Given previous research linking tree mycorrhizal association with carbon and nutrient dynamics, we hypothesized that the two dominant mycorrhizal groups in forests - arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) fungi - differ in litter decomposition rates. We compiled leaf litter chemistry and decay data for AM- and ECM-associating angiosperms and gymnosperms (> 200 species) from temperate and tropical/subtropical, and investigated relationships among decay rates, mycorrhizal association, phylogeny and climate. In temperate forests, AM litters decayed faster than ECM litters, with litter nitrogen and phylogeny best explaining variation in litter decay. In sub/tropical forests, we found no significant difference in litter decay rate between mycorrhizal groups, and variation in decay rates was best explained by litter phosphorus. Our results suggest that knowledge of tree mycorrhizal association may improve predictions of species effects on ecosystem processes, particularly in temperate forests where AM and ECM species commonly co-occur, providing a predictive framework for linking litter quality, organic matter dynamics and nutrient acquisition in forests.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">30299541</PMID><DateCompleted><Year>2020</Year><Month>02</Month><Day>27</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>222</Volume><Issue>1</Issue><PubDate><Year>2019</Year><Month>04</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Leaf litter decay rates differ between mycorrhizal groups in temperate, but not tropical, forests.</ArticleTitle><Pagination><MedlinePgn>556-564</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/nph.15524</ELocationID><Abstract><AbstractText>Whereas the primary controls on litter decomposition are well established, we lack a framework for predicting interspecific differences in litter decay within and across ecosystems. Given previous research linking tree mycorrhizal association with carbon and nutrient dynamics, we hypothesized that the two dominant mycorrhizal groups in forests - arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) fungi - differ in litter decomposition rates. We compiled leaf litter chemistry and decay data for AM- and ECM-associating angiosperms and gymnosperms (> 200 species) from temperate and tropical/subtropical, and investigated relationships among decay rates, mycorrhizal association, phylogeny and climate. In temperate forests, AM litters decayed faster than ECM litters, with litter nitrogen and phylogeny best explaining variation in litter decay. In sub/tropical forests, we found no significant difference in litter decay rate between mycorrhizal groups, and variation in decay rates was best explained by litter phosphorus. Our results suggest that knowledge of tree mycorrhizal association may improve predictions of species effects on ecosystem processes, particularly in temperate forests where AM and ECM species commonly co-occur, providing a predictive framework for linking litter quality, organic matter dynamics and nutrient acquisition in forests.</AbstractText><CopyrightInformation>© 2018 The Authors. New Phytologist © 2018 New Phytologist Trust.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Keller</LastName><ForeName>Adrienne B</ForeName><Initials>AB</Initials><Identifier Source="ORCID">0000-0002-1986-8382</Identifier><AffiliationInfo><Affiliation>Department of Biology, Indiana University, Jordan Hall, 1001 E. Third St, Bloomington, IN, 47405, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Phillips</LastName><ForeName>Richard P</ForeName><Initials>RP</Initials><Identifier Source="ORCID">0000-0002-1345-4138</Identifier><AffiliationInfo><Affiliation>Department of Biology, Indiana University, Jordan Hall, 1001 E. 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