Arbuscular mycorrhizal fungi communities from tropical Africa reveal strong ecological structure.
Identifieur interne : 000F58 ( Main/Corpus ); précédent : 000F57; suivant : 000F59Arbuscular mycorrhizal fungi communities from tropical Africa reveal strong ecological structure.
Auteurs : Susana Rodríguez-Echeverría ; Helena Teixeira ; Marta Correia ; Sérgio Tim Teo ; Ruben Heleno ; Maarja Öpik ; Mari MooraSource :
- The New phytologist [ 1469-8137 ] ; 2017.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Soil.
- physiology : Glomeromycota, Mycorrhizae.
- Africa, Biodiversity, Ecosystem, Tropical Climate.
Abstract
Understanding the distribution and diversity of arbuscular mycorrhizal fungi (AMF) and the rules that govern AMF assemblages has been hampered by a lack of data from natural ecosystems. In addition, the current knowledge on AMF diversity is biased towards temperate ecosystems, whereas little is known about other habitats such as dry tropical ecosystems. We explored the diversity and structure of AMF communities in grasslands, savannas, dry forests and miombo in a protected area under dry tropical climate (Gorongosa National Park, Mozambique) using 454 pyrosequencing. In total, 147 AMF virtual taxa (VT) were detected, including 22 VT new to science. We found a high turnover of AMF with ˂ 12% of VT present in all vegetation types. Forested areas supported more diverse AMF communities than savannas and grassland. Miombo woodlands had the highest AMF richness, number of novel VT, and number of exclusive and indicator taxa. Our data reveal a sharp differentiation of AMF communities between forested areas and periodically flooded savannas and grasslands. This marked ecological structure of AMF communities provides the first comprehensive landscape-scale evidence that, at the background of globally low endemism of AMF, local communities are shaped by regional processes including environmental filtering by edaphic properties and natural disturbance.
DOI: 10.1111/nph.14122
PubMed: 27560189
Links to Exploration step
pubmed:27560189Le document en format XML
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<author><name sortKey="Teixeira, Helena" sort="Teixeira, Helena" uniqKey="Teixeira H" first="Helena" last="Teixeira">Helena Teixeira</name>
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<author><name sortKey="Correia, Marta" sort="Correia, Marta" uniqKey="Correia M" first="Marta" last="Correia">Marta Correia</name>
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<author><name sortKey="Heleno, Ruben" sort="Heleno, Ruben" uniqKey="Heleno R" first="Ruben" last="Heleno">Ruben Heleno</name>
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<author><name sortKey="Teixeira, Helena" sort="Teixeira, Helena" uniqKey="Teixeira H" first="Helena" last="Teixeira">Helena Teixeira</name>
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<author><name sortKey="Correia, Marta" sort="Correia, Marta" uniqKey="Correia M" first="Marta" last="Correia">Marta Correia</name>
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<author><name sortKey="Tim Teo, Sergio" sort="Tim Teo, Sergio" uniqKey="Tim Teo S" first="Sérgio" last="Tim Teo">Sérgio Tim Teo</name>
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<author><name sortKey="Heleno, Ruben" sort="Heleno, Ruben" uniqKey="Heleno R" first="Ruben" last="Heleno">Ruben Heleno</name>
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<author><name sortKey="Opik, Maarja" sort="Opik, Maarja" uniqKey="Opik M" first="Maarja" last="Öpik">Maarja Öpik</name>
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<author><name sortKey="Moora, Mari" sort="Moora, Mari" uniqKey="Moora M" first="Mari" last="Moora">Mari Moora</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Africa (MeSH)</term>
<term>Biodiversity (MeSH)</term>
<term>Ecosystem (MeSH)</term>
<term>Glomeromycota (physiology)</term>
<term>Mycorrhizae (physiology)</term>
<term>Soil (chemistry)</term>
<term>Tropical Climate (MeSH)</term>
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<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Soil</term>
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<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Glomeromycota</term>
<term>Mycorrhizae</term>
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<front><div type="abstract" xml:lang="en">Understanding the distribution and diversity of arbuscular mycorrhizal fungi (AMF) and the rules that govern AMF assemblages has been hampered by a lack of data from natural ecosystems. In addition, the current knowledge on AMF diversity is biased towards temperate ecosystems, whereas little is known about other habitats such as dry tropical ecosystems. We explored the diversity and structure of AMF communities in grasslands, savannas, dry forests and miombo in a protected area under dry tropical climate (Gorongosa National Park, Mozambique) using 454 pyrosequencing. In total, 147 AMF virtual taxa (VT) were detected, including 22 VT new to science. We found a high turnover of AMF with ˂ 12% of VT present in all vegetation types. Forested areas supported more diverse AMF communities than savannas and grassland. Miombo woodlands had the highest AMF richness, number of novel VT, and number of exclusive and indicator taxa. Our data reveal a sharp differentiation of AMF communities between forested areas and periodically flooded savannas and grasslands. This marked ecological structure of AMF communities provides the first comprehensive landscape-scale evidence that, at the background of globally low endemism of AMF, local communities are shaped by regional processes including environmental filtering by edaphic properties and natural disturbance.</div>
</front>
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<Abstract><AbstractText>Understanding the distribution and diversity of arbuscular mycorrhizal fungi (AMF) and the rules that govern AMF assemblages has been hampered by a lack of data from natural ecosystems. In addition, the current knowledge on AMF diversity is biased towards temperate ecosystems, whereas little is known about other habitats such as dry tropical ecosystems. We explored the diversity and structure of AMF communities in grasslands, savannas, dry forests and miombo in a protected area under dry tropical climate (Gorongosa National Park, Mozambique) using 454 pyrosequencing. In total, 147 AMF virtual taxa (VT) were detected, including 22 VT new to science. We found a high turnover of AMF with ˂ 12% of VT present in all vegetation types. Forested areas supported more diverse AMF communities than savannas and grassland. Miombo woodlands had the highest AMF richness, number of novel VT, and number of exclusive and indicator taxa. Our data reveal a sharp differentiation of AMF communities between forested areas and periodically flooded savannas and grasslands. This marked ecological structure of AMF communities provides the first comprehensive landscape-scale evidence that, at the background of globally low endemism of AMF, local communities are shaped by regional processes including environmental filtering by edaphic properties and natural disturbance.</AbstractText>
<CopyrightInformation>© 2016 The Authors. New Phytologist © 2016 New Phytologist Trust.</CopyrightInformation>
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<Keyword MajorTopicYN="Y">flooding</Keyword>
<Keyword MajorTopicYN="Y">miombo</Keyword>
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