Implication of evolution and diversity in arbuscular and ectomycorrhizal symbioses.
Identifieur interne : 001720 ( Main/Corpus ); précédent : 001719; suivant : 001721Implication of evolution and diversity in arbuscular and ectomycorrhizal symbioses.
Auteurs : François BuscotSource :
- Journal of plant physiology [ 1618-1328 ] ; 2015.
English descriptors
- KwdEn :
- MESH :
- microbiology : Plant Roots.
- physiology : Fungi, Mycorrhizae, Plant Roots.
- Biodiversity, Biological Evolution, Plant Physiological Phenomena, Symbiosis.
Abstract
Being highly sensitive to ecological variations, symbiotic associations should inherently have a limited occurrence in nature. To circumvent this sensitivity and reach their universal distribution, symbioses used three strategies during their evolution, which all generated high biodiversity levels: (i) specialization to a specific environment, (ii) protection of one partner via its internalization into the other, (iii) frequent partner exchange. Mycorrhizal associations follow the 3rd strategy, but also present traits of internalization. As most ancient type, arbuscular mycorrhiza (AM) formed by a monophyletic fungal group with reduced species richness did constantly support the mineral nutrition of terrestrial plants and enabled their ecological radiation and actual biodiversity level. In contrast ectomycorrhiza (EM) evolved later and independently within different taxa of fungi able to degrade complex organic plant residues, and the diversity levels of EM fungal and tree partners are balanced. Despite their different origins and diversity levels, AM and EM fungi display similar patterns of diversity dynamics in ecosystems. At each time or succession interval, a few dominant and many rare fungi are recruited by plants roots from a wide reservoir of propagules. However, the dominant fungal partners are frequently replaced in relation to changes in the vegetation or ecological conditions. While the initial establishment of AM and EM fungal communities corresponds to a neutral recruitment, their further succession is rather driven by niche differentiation dynamics.
DOI: 10.1016/j.jplph.2014.08.013
PubMed: 25239593
Links to Exploration step
pubmed:25239593Le document en format XML
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Electronic address: francois.buscot@ufz.de.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2015">2015</date><idno type="RBID">pubmed:25239593</idno><idno type="pmid">25239593</idno><idno type="doi">10.1016/j.jplph.2014.08.013</idno><idno type="wicri:Area/Main/Corpus">001720</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001720</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Implication of evolution and diversity in arbuscular and ectomycorrhizal symbioses.</title><author><name sortKey="Buscot, Francois" sort="Buscot, Francois" uniqKey="Buscot F" first="François" last="Buscot">François Buscot</name><affiliation><nlm:affiliation>German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany. Electronic address: francois.buscot@ufz.de.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Journal of plant physiology</title><idno type="eISSN">1618-1328</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biodiversity (MeSH)</term><term>Biological Evolution (MeSH)</term><term>Fungi (physiology)</term><term>Mycorrhizae (physiology)</term><term>Plant Physiological Phenomena (MeSH)</term><term>Plant Roots (microbiology)</term><term>Plant Roots (physiology)</term><term>Symbiosis (MeSH)</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Fungi</term><term>Mycorrhizae</term><term>Plant Roots</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biodiversity</term><term>Biological Evolution</term><term>Plant Physiological Phenomena</term><term>Symbiosis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Being highly sensitive to ecological variations, symbiotic associations should inherently have a limited occurrence in nature. To circumvent this sensitivity and reach their universal distribution, symbioses used three strategies during their evolution, which all generated high biodiversity levels: (i) specialization to a specific environment, (ii) protection of one partner via its internalization into the other, (iii) frequent partner exchange. Mycorrhizal associations follow the 3rd strategy, but also present traits of internalization. As most ancient type, arbuscular mycorrhiza (AM) formed by a monophyletic fungal group with reduced species richness did constantly support the mineral nutrition of terrestrial plants and enabled their ecological radiation and actual biodiversity level. In contrast ectomycorrhiza (EM) evolved later and independently within different taxa of fungi able to degrade complex organic plant residues, and the diversity levels of EM fungal and tree partners are balanced. Despite their different origins and diversity levels, AM and EM fungi display similar patterns of diversity dynamics in ecosystems. At each time or succession interval, a few dominant and many rare fungi are recruited by plants roots from a wide reservoir of propagules. However, the dominant fungal partners are frequently replaced in relation to changes in the vegetation or ecological conditions. While the initial establishment of AM and EM fungal communities corresponds to a neutral recruitment, their further succession is rather driven by niche differentiation dynamics. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">25239593</PMID><DateCompleted><Year>2015</Year><Month>07</Month><Day>22</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1618-1328</ISSN><JournalIssue CitedMedium="Internet"><Volume>172</Volume><PubDate><Year>2015</Year><Month>Jan</Month><Day>01</Day></PubDate></JournalIssue><Title>Journal of plant physiology</Title><ISOAbbreviation>J Plant Physiol</ISOAbbreviation></Journal><ArticleTitle>Implication of evolution and diversity in arbuscular and ectomycorrhizal symbioses.</ArticleTitle><Pagination><MedlinePgn>55-61</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.jplph.2014.08.013</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S0176-1617(14)00231-4</ELocationID><Abstract><AbstractText>Being highly sensitive to ecological variations, symbiotic associations should inherently have a limited occurrence in nature. To circumvent this sensitivity and reach their universal distribution, symbioses used three strategies during their evolution, which all generated high biodiversity levels: (i) specialization to a specific environment, (ii) protection of one partner via its internalization into the other, (iii) frequent partner exchange. Mycorrhizal associations follow the 3rd strategy, but also present traits of internalization. As most ancient type, arbuscular mycorrhiza (AM) formed by a monophyletic fungal group with reduced species richness did constantly support the mineral nutrition of terrestrial plants and enabled their ecological radiation and actual biodiversity level. In contrast ectomycorrhiza (EM) evolved later and independently within different taxa of fungi able to degrade complex organic plant residues, and the diversity levels of EM fungal and tree partners are balanced. Despite their different origins and diversity levels, AM and EM fungi display similar patterns of diversity dynamics in ecosystems. At each time or succession interval, a few dominant and many rare fungi are recruited by plants roots from a wide reservoir of propagules. However, the dominant fungal partners are frequently replaced in relation to changes in the vegetation or ecological conditions. While the initial establishment of AM and EM fungal communities corresponds to a neutral recruitment, their further succession is rather driven by niche differentiation dynamics. </AbstractText><CopyrightInformation>Copyright © 2014 The Authors. Published by Elsevier GmbH.. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Buscot</LastName><ForeName>François</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany. 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