Quantity and distribution of arbuscular mycorrhizal fungal storage organs within dead roots.
Identifieur interne : 000E73 ( Main/Corpus ); précédent : 000E72; suivant : 000E74Quantity and distribution of arbuscular mycorrhizal fungal storage organs within dead roots.
Auteurs : Anja Müller ; Benard Ngwene ; Edgar Peiter ; Eckhard GeorgeSource :
- Mycorrhiza [ 1432-1890 ] ; 2017.
English descriptors
- KwdEn :
- MESH :
- growth & development : Hyphae, Mycelium, Mycorrhizae.
- metabolism : Mycorrhizae, Spores, Fungal.
- microbiology : Plant Roots, Zea mays.
- Soil Microbiology, Symbiosis.
Abstract
The formation of storage organs, such as spores and vesicles, is a central part of the life cycle of an arbuscular mycorrhizal fungus (AMF), but the conditions under which this occurs in AMF are not well understood. Here, quantity and distribution of storage organs formed by the arbuscular mycorrhizal fungus (AMF) Funneliformis mosseae within dead (excised) roots were characterised. 'Trap roots' (TR), separated from the growth substrate by a 30-μm mesh, supported hyphal growth and formation of storage organs of the AMF. Hyphae developed both inside and on the outside of the TR and also within air gaps of surrounding nylon mesh compartments, but formation of vesicles and spores was confined to the interior and to the surface of the TR. Up to 20 % of the TR length harboured newly formed storage organs, resulting in a number of about 60 per mg TR dry weight. The portion of TR length containing storage organs was greater in coarse (diameter >300 μm) than in thin (<150 μm) TR, irrespective of whether the TR were sourced from an AMF host or non-host plant. We conclude that the AMF's extraradical mycelium produces its storage organs within dead roots in preference to air space in the substrate. Dead roots may indirectly supply nutrients to AMF (once they have been mineralised) or represent a protected space for the fungal structures to develop. The experimental technique described here allows for the preparation of AMF spores and vesicles of F. mosseae free of any mineral substrate.
DOI: 10.1007/s00572-016-0741-0
PubMed: 27838855
PubMed Central: PMC5352753
Links to Exploration step
pubmed:27838855Le document en format XML
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and Nutritional Sciences (IAEW), Faculty of Natural Sciences III, Martin Luther University Halle-Wittenberg, 06099, Halle (Saale), Germany.</nlm:affiliation></affiliation></author><author><name sortKey="George, Eckhard" sort="George, Eckhard" uniqKey="George E" first="Eckhard" last="George">Eckhard George</name><affiliation><nlm:affiliation>Leibniz-Institute of Vegetable and Ornamental Crops, Theodor-Echtermeyer-Weg 1, 14979, Grossbeeren, Germany.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Department of Crop and Animal Sciences, Plant Nutrition, Humboldt University, Unter den Linden 6, 10099, Berlin, Germany.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2017">2017</date><idno type="RBID">pubmed:27838855</idno><idno type="pmid">27838855</idno><idno type="doi">10.1007/s00572-016-0741-0</idno><idno type="pmc">PMC5352753</idno><idno type="wicri:Area/Main/Corpus">000E73</idno><idno 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last="Peiter">Edgar Peiter</name><affiliation><nlm:affiliation>Plant Nutrition Laboratory, Institute of Agricultural and Nutritional Sciences (IAEW), Faculty of Natural Sciences III, Martin Luther University Halle-Wittenberg, 06099, Halle (Saale), Germany.</nlm:affiliation></affiliation></author><author><name sortKey="George, Eckhard" sort="George, Eckhard" uniqKey="George E" first="Eckhard" last="George">Eckhard George</name><affiliation><nlm:affiliation>Leibniz-Institute of Vegetable and Ornamental Crops, Theodor-Echtermeyer-Weg 1, 14979, Grossbeeren, Germany.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Department of Crop and Animal Sciences, Plant Nutrition, Humboldt University, Unter den Linden 6, 10099, Berlin, Germany.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Mycorrhiza</title><idno type="eISSN">1432-1890</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Hyphae (growth & development)</term><term>Mycelium (growth & development)</term><term>Mycorrhizae (growth & development)</term><term>Mycorrhizae (metabolism)</term><term>Plant Roots (microbiology)</term><term>Soil Microbiology (MeSH)</term><term>Spores, Fungal (metabolism)</term><term>Symbiosis (MeSH)</term><term>Zea mays (microbiology)</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Hyphae</term><term>Mycelium</term><term>Mycorrhizae</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Mycorrhizae</term><term>Spores, Fungal</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Roots</term><term>Zea mays</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Soil Microbiology</term><term>Symbiosis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The formation of storage organs, such as spores and vesicles, is a central part of the life cycle of an arbuscular mycorrhizal fungus (AMF), but the conditions under which this occurs in AMF are not well understood. Here, quantity and distribution of storage organs formed by the arbuscular mycorrhizal fungus (AMF) Funneliformis mosseae within dead (excised) roots were characterised. 'Trap roots' (TR), separated from the growth substrate by a 30-μm mesh, supported hyphal growth and formation of storage organs of the AMF. Hyphae developed both inside and on the outside of the TR and also within air gaps of surrounding nylon mesh compartments, but formation of vesicles and spores was confined to the interior and to the surface of the TR. Up to 20 % of the TR length harboured newly formed storage organs, resulting in a number of about 60 per mg TR dry weight. The portion of TR length containing storage organs was greater in coarse (diameter >300 μm) than in thin (<150 μm) TR, irrespective of whether the TR were sourced from an AMF host or non-host plant. We conclude that the AMF's extraradical mycelium produces its storage organs within dead roots in preference to air space in the substrate. Dead roots may indirectly supply nutrients to AMF (once they have been mineralised) or represent a protected space for the fungal structures to develop. The experimental technique described here allows for the preparation of AMF spores and vesicles of F. mosseae free of any mineral substrate.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">27838855</PMID><DateCompleted><Year>2017</Year><Month>04</Month><Day>04</Day></DateCompleted><DateRevised><Year>2019</Year><Month>01</Month><Day>09</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-1890</ISSN><JournalIssue CitedMedium="Internet"><Volume>27</Volume><Issue>3</Issue><PubDate><Year>2017</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Mycorrhiza</Title><ISOAbbreviation>Mycorrhiza</ISOAbbreviation></Journal><ArticleTitle>Quantity and distribution of arbuscular mycorrhizal fungal storage organs within dead roots.</ArticleTitle><Pagination><MedlinePgn>201-210</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00572-016-0741-0</ELocationID><Abstract><AbstractText>The formation of storage organs, such as spores and vesicles, is a central part of the life cycle of an arbuscular mycorrhizal fungus (AMF), but the conditions under which this occurs in AMF are not well understood. Here, quantity and distribution of storage organs formed by the arbuscular mycorrhizal fungus (AMF) Funneliformis mosseae within dead (excised) roots were characterised. 'Trap roots' (TR), separated from the growth substrate by a 30-μm mesh, supported hyphal growth and formation of storage organs of the AMF. Hyphae developed both inside and on the outside of the TR and also within air gaps of surrounding nylon mesh compartments, but formation of vesicles and spores was confined to the interior and to the surface of the TR. Up to 20 % of the TR length harboured newly formed storage organs, resulting in a number of about 60 per mg TR dry weight. The portion of TR length containing storage organs was greater in coarse (diameter >300 μm) than in thin (<150 μm) TR, irrespective of whether the TR were sourced from an AMF host or non-host plant. We conclude that the AMF's extraradical mycelium produces its storage organs within dead roots in preference to air space in the substrate. Dead roots may indirectly supply nutrients to AMF (once they have been mineralised) or represent a protected space for the fungal structures to develop. The experimental technique described here allows for the preparation of AMF spores and vesicles of F. mosseae free of any mineral substrate.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Müller</LastName><ForeName>Anja</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Leibniz-Institute of Vegetable and Ornamental Crops, Theodor-Echtermeyer-Weg 1, 14979, Grossbeeren, Germany. mueller@igzev.de.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ngwene</LastName><ForeName>Benard</ForeName><Initials>B</Initials><AffiliationInfo><Affiliation>Leibniz-Institute of Vegetable and Ornamental Crops, Theodor-Echtermeyer-Weg 1, 14979, Grossbeeren, Germany.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Peiter</LastName><ForeName>Edgar</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Plant Nutrition Laboratory, Institute of Agricultural and Nutritional Sciences (IAEW), Faculty of Natural Sciences III, Martin Luther University Halle-Wittenberg, 06099, Halle (Saale), Germany.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>George</LastName><ForeName>Eckhard</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Leibniz-Institute of Vegetable and Ornamental Crops, Theodor-Echtermeyer-Weg 1, 14979, Grossbeeren, Germany.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Department of Crop and Animal Sciences, Plant Nutrition, Humboldt University, Unter den Linden 6, 10099, Berlin, Germany.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2016</Year><Month>11</Month><Day>12</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Mycorrhiza</MedlineTA><NlmUniqueID>100955036</NlmUniqueID><ISSNLinking>0940-6360</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D025301" MajorTopicYN="N">Hyphae</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D025282" MajorTopicYN="N">Mycelium</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="N">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013172" MajorTopicYN="N">Spores, Fungal</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013559" MajorTopicYN="N">Symbiosis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003313" MajorTopicYN="N">Zea mays</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Extraradical mycelium</Keyword><Keyword MajorTopicYN="N">Root colonisation</Keyword><Keyword MajorTopicYN="N">Root turnover</Keyword><Keyword MajorTopicYN="N">Spore production</Keyword><Keyword 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