Functional analysis of liverworts in dual symbiosis with Glomeromycota and Mucoromycotina fungi under a simulated Palaeozoic CO2 decline.
Identifieur interne : 001266 ( Main/Curation ); précédent : 001265; suivant : 001267Functional analysis of liverworts in dual symbiosis with Glomeromycota and Mucoromycotina fungi under a simulated Palaeozoic CO2 decline.
Auteurs : Katie J. Field [Royaume-Uni] ; William R. Rimington [Royaume-Uni] ; Martin I. Bidartondo [Royaume-Uni] ; Kate E. Allinson [Royaume-Uni] ; David J. Beerling [Royaume-Uni] ; Duncan D. Cameron [Royaume-Uni] ; Jeffrey G. Duckett [Royaume-Uni] ; Jonathan R. Leake [Royaume-Uni] ; Silvia Pressel [Royaume-Uni]Source :
- The ISME journal [ 1751-7370 ] ; 2016.
Descripteurs français
- KwdFr :
- Carbone (métabolisme), Champignons (effets des médicaments et des substances chimiques), Champignons (physiologie), Champignons (ultrastructure), Dioxyde de carbone (pharmacologie), Glomeromycota (effets des médicaments et des substances chimiques), Glomeromycota (physiologie), Glomeromycota (ultrastructure), Hepatophyta (effets des médicaments et des substances chimiques), Hepatophyta (microbiologie), Hepatophyta (ultrastructure), Mycorhizes (effets des médicaments et des substances chimiques), Mycorhizes (physiologie), Mycorhizes (ultrastructure), Phylogenèse (MeSH), Racines de plante (microbiologie), Symbiose (MeSH), Évolution biologique (MeSH).
- MESH :
- effets des médicaments et des substances chimiques : Champignons, Glomeromycota, Hepatophyta, Mycorhizes.
- microbiologie : Hepatophyta, Racines de plante.
- métabolisme : Carbone.
- pharmacologie : Dioxyde de carbone.
- physiologie : Champignons, Glomeromycota, Mycorhizes.
- ultrastructure : Champignons, Glomeromycota, Hepatophyta, Mycorhizes, Phylogenèse, Symbiose, Évolution biologique.
English descriptors
- KwdEn :
- Biological Evolution (MeSH), Carbon (metabolism), Carbon Dioxide (pharmacology), Fungi (drug effects), Fungi (physiology), Fungi (ultrastructure), Glomeromycota (drug effects), Glomeromycota (physiology), Glomeromycota (ultrastructure), Hepatophyta (drug effects), Hepatophyta (microbiology), Hepatophyta (ultrastructure), Mycorrhizae (drug effects), Mycorrhizae (physiology), Mycorrhizae (ultrastructure), Phylogeny (MeSH), Plant Roots (microbiology), Symbiosis (MeSH).
- MESH :
- chemical , metabolism : Carbon.
- chemical , pharmacology : Carbon Dioxide.
- drug effects : Fungi, Glomeromycota, Hepatophyta, Mycorrhizae.
- microbiology : Hepatophyta, Plant Roots.
- physiology : Fungi, Glomeromycota, Mycorrhizae.
- ultrastructure : Fungi, Glomeromycota, Hepatophyta, Mycorrhizae.
- Biological Evolution, Phylogeny, Symbiosis.
Abstract
Most land plants form mutualistic associations with arbuscular mycorrhizal fungi of the Glomeromycota, but recent studies have found that ancient plant lineages form mutualisms with Mucoromycotina fungi. Simultaneous associations with both fungal lineages have now been found in some plants, necessitating studies to understand the functional and evolutionary significance of these tripartite associations for the first time. We investigate the physiology and cytology of dual fungal symbioses in the early-diverging liverworts Allisonia and Neohodgsonia at modern and Palaeozoic-like elevated atmospheric CO2 concentrations under which they are thought to have evolved. We found enhanced carbon cost to liverworts with simultaneous Mucoromycotina and Glomeromycota associations, greater nutrient gain compared with those symbiotic with only one fungal group in previous experiments and contrasting responses to atmospheric CO2 among liverwort-fungal symbioses. In liverwort-Mucoromycotina symbioses, there is increased P-for-C and N-for-C exchange efficiency at 440 p.p.m. compared with 1500 p.p.m. CO2. In liverwort-Glomeromycota symbioses, P-for-C exchange is lower at ambient CO2 compared with elevated CO2. No characteristic cytologies of dual symbiosis were identified. We provide evidence of a distinct physiological niche for plant symbioses with Mucoromycotina fungi, giving novel insight into why dual symbioses with Mucoromycotina and Glomeromycota fungi persist to the present day.
DOI: 10.1038/ismej.2015.204
PubMed: 26613340
PubMed Central: PMC5029179
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<term>Carbon Dioxide (pharmacology)</term>
<term>Fungi (drug effects)</term>
<term>Fungi (physiology)</term>
<term>Fungi (ultrastructure)</term>
<term>Glomeromycota (drug effects)</term>
<term>Glomeromycota (physiology)</term>
<term>Glomeromycota (ultrastructure)</term>
<term>Hepatophyta (drug effects)</term>
<term>Hepatophyta (microbiology)</term>
<term>Hepatophyta (ultrastructure)</term>
<term>Mycorrhizae (drug effects)</term>
<term>Mycorrhizae (physiology)</term>
<term>Mycorrhizae (ultrastructure)</term>
<term>Phylogeny (MeSH)</term>
<term>Plant Roots (microbiology)</term>
<term>Symbiosis (MeSH)</term>
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<keywords scheme="KwdFr" xml:lang="fr"><term>Carbone (métabolisme)</term>
<term>Champignons (effets des médicaments et des substances chimiques)</term>
<term>Champignons (physiologie)</term>
<term>Champignons (ultrastructure)</term>
<term>Dioxyde de carbone (pharmacologie)</term>
<term>Glomeromycota (effets des médicaments et des substances chimiques)</term>
<term>Glomeromycota (physiologie)</term>
<term>Glomeromycota (ultrastructure)</term>
<term>Hepatophyta (effets des médicaments et des substances chimiques)</term>
<term>Hepatophyta (microbiologie)</term>
<term>Hepatophyta (ultrastructure)</term>
<term>Mycorhizes (effets des médicaments et des substances chimiques)</term>
<term>Mycorhizes (physiologie)</term>
<term>Mycorhizes (ultrastructure)</term>
<term>Phylogenèse (MeSH)</term>
<term>Racines de plante (microbiologie)</term>
<term>Symbiose (MeSH)</term>
<term>Évolution biologique (MeSH)</term>
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<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Carbon</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Carbon Dioxide</term>
</keywords>
<keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Fungi</term>
<term>Glomeromycota</term>
<term>Hepatophyta</term>
<term>Mycorrhizae</term>
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<term>Glomeromycota</term>
<term>Hepatophyta</term>
<term>Mycorhizes</term>
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<keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Hepatophyta</term>
<term>Racines de plante</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Hepatophyta</term>
<term>Plant Roots</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Carbone</term>
</keywords>
<keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Dioxyde de carbone</term>
</keywords>
<keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Champignons</term>
<term>Glomeromycota</term>
<term>Mycorhizes</term>
</keywords>
<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Fungi</term>
<term>Glomeromycota</term>
<term>Mycorrhizae</term>
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<term>Hepatophyta</term>
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<term>Hepatophyta</term>
<term>Mycorhizes</term>
<term>Phylogenèse</term>
<term>Symbiose</term>
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<front><div type="abstract" xml:lang="en">Most land plants form mutualistic associations with arbuscular mycorrhizal fungi of the Glomeromycota, but recent studies have found that ancient plant lineages form mutualisms with Mucoromycotina fungi. Simultaneous associations with both fungal lineages have now been found in some plants, necessitating studies to understand the functional and evolutionary significance of these tripartite associations for the first time. We investigate the physiology and cytology of dual fungal symbioses in the early-diverging liverworts Allisonia and Neohodgsonia at modern and Palaeozoic-like elevated atmospheric CO2 concentrations under which they are thought to have evolved. We found enhanced carbon cost to liverworts with simultaneous Mucoromycotina and Glomeromycota associations, greater nutrient gain compared with those symbiotic with only one fungal group in previous experiments and contrasting responses to atmospheric CO2 among liverwort-fungal symbioses. In liverwort-Mucoromycotina symbioses, there is increased P-for-C and N-for-C exchange efficiency at 440 p.p.m. compared with 1500 p.p.m. CO2. In liverwort-Glomeromycota symbioses, P-for-C exchange is lower at ambient CO2 compared with elevated CO2. No characteristic cytologies of dual symbiosis were identified. We provide evidence of a distinct physiological niche for plant symbioses with Mucoromycotina fungi, giving novel insight into why dual symbioses with Mucoromycotina and Glomeromycota fungi persist to the present day.</div>
</front>
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<ArticleTitle>Functional analysis of liverworts in dual symbiosis with Glomeromycota and Mucoromycotina fungi under a simulated Palaeozoic CO2 decline.</ArticleTitle>
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<Abstract><AbstractText>Most land plants form mutualistic associations with arbuscular mycorrhizal fungi of the Glomeromycota, but recent studies have found that ancient plant lineages form mutualisms with Mucoromycotina fungi. Simultaneous associations with both fungal lineages have now been found in some plants, necessitating studies to understand the functional and evolutionary significance of these tripartite associations for the first time. We investigate the physiology and cytology of dual fungal symbioses in the early-diverging liverworts Allisonia and Neohodgsonia at modern and Palaeozoic-like elevated atmospheric CO2 concentrations under which they are thought to have evolved. We found enhanced carbon cost to liverworts with simultaneous Mucoromycotina and Glomeromycota associations, greater nutrient gain compared with those symbiotic with only one fungal group in previous experiments and contrasting responses to atmospheric CO2 among liverwort-fungal symbioses. In liverwort-Mucoromycotina symbioses, there is increased P-for-C and N-for-C exchange efficiency at 440 p.p.m. compared with 1500 p.p.m. CO2. In liverwort-Glomeromycota symbioses, P-for-C exchange is lower at ambient CO2 compared with elevated CO2. No characteristic cytologies of dual symbiosis were identified. We provide evidence of a distinct physiological niche for plant symbioses with Mucoromycotina fungi, giving novel insight into why dual symbioses with Mucoromycotina and Glomeromycota fungi persist to the present day.</AbstractText>
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<AffiliationInfo><Affiliation>Department of Life Sciences, Natural History Museum, London, UK.</Affiliation>
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<Author ValidYN="Y"><LastName>Bidartondo</LastName>
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