Myco-heterotrophy: when fungi host plants.
Identifieur interne : 002852 ( Main/Corpus ); précédent : 002851; suivant : 002853Myco-heterotrophy: when fungi host plants.
Auteurs : Vincent Merckx ; Martin I. Bidartondo ; Nicole A. HynsonSource :
- Annals of botany [ 1095-8290 ] ; 2009.
English descriptors
- KwdEn :
- MESH :
- physiology : Mycorrhizae.
- Animals, Biological Evolution, Ecosystem, Heterotrophic Processes, Species Specificity, Symbiosis.
Abstract
BACKGROUND
Myco-heterotrophic plants are partly or entirely non-photosynthetic plants that obtain energy and nutrients from fungi. These plants form a symbiosis with arbuscular mycorrhizal, ectomycorrhizal or saprotrophic fungi to meet their nutrient demands.
SCOPE
This Botanical Briefing summarizes current knowledge about myco-heterotrophy, discusses its controversial aspects and highlights future directions for research.
CONCLUSIONS
Considerable recent progress has been made in terms of understanding the evolutionary history, germination and nutrition of myco-heterotrophic plants. Myco-heterotrophic plants: (1) are diverse and often ancient lineages that have coevolved with fungi, (2) often demonstrate unusually high specificity towards fungi during germination and maturity, and (3) can either cheat common mycorrhizal networks supported by neighbouring photosynthetic plants to satisfy all or part of their energetic and nutritional needs, or recruit free-living saprotrophic fungi into novel mycorrhizal symbioses. However, several fundamental aspects of myco-heterotrophy remain controversial or unknown, such as symbiotic costs and physiology.
DOI: 10.1093/aob/mcp235
PubMed: 19767309
PubMed Central: PMC2778383
Links to Exploration step
pubmed:19767309Le document en format XML
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<author><name sortKey="Merckx, Vincent" sort="Merckx, Vincent" uniqKey="Merckx V" first="Vincent" last="Merckx">Vincent Merckx</name>
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<author><name sortKey="Bidartondo, Martin I" sort="Bidartondo, Martin I" uniqKey="Bidartondo M" first="Martin I" last="Bidartondo">Martin I. Bidartondo</name>
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<author><name sortKey="Hynson, Nicole A" sort="Hynson, Nicole A" uniqKey="Hynson N" first="Nicole A" last="Hynson">Nicole A. Hynson</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals (MeSH)</term>
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<term>Ecosystem (MeSH)</term>
<term>Heterotrophic Processes (MeSH)</term>
<term>Mycorrhizae (physiology)</term>
<term>Species Specificity (MeSH)</term>
<term>Symbiosis (MeSH)</term>
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<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycorrhizae</term>
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<keywords scheme="MESH" xml:lang="en"><term>Animals</term>
<term>Biological Evolution</term>
<term>Ecosystem</term>
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<front><div type="abstract" xml:lang="en"><p><b>BACKGROUND</b>
</p>
<p>Myco-heterotrophic plants are partly or entirely non-photosynthetic plants that obtain energy and nutrients from fungi. These plants form a symbiosis with arbuscular mycorrhizal, ectomycorrhizal or saprotrophic fungi to meet their nutrient demands.</p>
</div>
<div type="abstract" xml:lang="en"><p><b>SCOPE</b>
</p>
<p>This Botanical Briefing summarizes current knowledge about myco-heterotrophy, discusses its controversial aspects and highlights future directions for research.</p>
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<div type="abstract" xml:lang="en"><p><b>CONCLUSIONS</b>
</p>
<p>Considerable recent progress has been made in terms of understanding the evolutionary history, germination and nutrition of myco-heterotrophic plants. Myco-heterotrophic plants: (1) are diverse and often ancient lineages that have coevolved with fungi, (2) often demonstrate unusually high specificity towards fungi during germination and maturity, and (3) can either cheat common mycorrhizal networks supported by neighbouring photosynthetic plants to satisfy all or part of their energetic and nutritional needs, or recruit free-living saprotrophic fungi into novel mycorrhizal symbioses. However, several fundamental aspects of myco-heterotrophy remain controversial or unknown, such as symbiotic costs and physiology.</p>
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