Lifespan and functionality of mycorrhizal fungal mycelium are uncoupled from host plant lifespan.
Identifieur interne : 000816 ( Main/Curation ); précédent : 000815; suivant : 000817Lifespan and functionality of mycorrhizal fungal mycelium are uncoupled from host plant lifespan.
Auteurs : Alessandra Pepe [Italie] ; Manuela Giovannetti [Italie] ; Cristiana Sbrana [Italie]Source :
- Scientific reports [ 2045-2322 ] ; 2018.
Descripteurs français
- KwdFr :
- MESH :
- croissance et développement : Racines de plante.
- microbiologie : Plantes, Pousses de plante, Racines de plante.
- physiologie : Mycelium, Mycorhizes, Pousses de plante.
- Longévité, Symbiose.
English descriptors
- KwdEn :
- MESH :
- growth & development : Plant Roots.
- microbiology : Plant Roots, Plant Shoots, Plants.
- physiology : Mycelium, Mycorrhizae, Plant Shoots.
- Longevity, Symbiosis.
Abstract
Arbuscular mycorrhizal fungi (AMF) are obligate symbionts, living in associations with the roots of most land plants. AMF produce wide networks of extraradical mycelium (ERM) of indeterminate length, spreading from host roots into the surrounding soil and establishing belowground interconnections among plants belonging to the same or to different taxa. Whether their lifespan and functionality are limited by host plant viability or can be extended beyond this limit is unknown. To address this issue, we performed time-course studies to investigate viability and functionality of ERM produced in an in vivo whole-plant system by Funneliformis mosseae and Rhizoglomus irregulare, after shoot detachment. Our data revealed that viability and functionality of F. mosseae and R. irregulare extraradical hyphae were uncoupled from host plant lifespan. Indeed, ERM spreading from roots of intact or shootless plants showed comparable levels of viability, similar structural traits and ability to establish mycorrhizal symbioses with new plants, as long as five months after shoot removal. Our findings expand the current knowledge on AMF biology and life cycle, providing data on ERM long-term survival in the soil of two Glomeracean species, functional to the prompt establishment of mycorrhizal symbioses and to the maintenance of soil biological fertility.
DOI: 10.1038/s41598-018-28354-5
PubMed: 29980700
PubMed Central: PMC6035242
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Giovannetti</name><affiliation wicri:level="1"><nlm:affiliation>Department of Agriculture, Food and Environment, University of Pisa, Pisa, 56124, Italy.</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Department of Agriculture, Food and Environment, University of Pisa, Pisa, 56124</wicri:regionArea></affiliation></author><author><name sortKey="Sbrana, Cristiana" sort="Sbrana, Cristiana" uniqKey="Sbrana C" first="Cristiana" last="Sbrana">Cristiana Sbrana</name><affiliation wicri:level="1"><nlm:affiliation>CNR-Institute of Agricultural Biology and Biotechnology, UOS Pisa, Pisa, 56124, Italy. sbrana@ibba.cnr.it.</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>CNR-Institute of Agricultural Biology and Biotechnology, UOS Pisa, Pisa, 56124</wicri:regionArea></affiliation></author></analytic><series><title level="j">Scientific reports</title><idno type="eISSN">2045-2322</idno><imprint><date when="2018" type="published">2018</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Longevity (MeSH)</term><term>Mycelium (physiology)</term><term>Mycorrhizae (physiology)</term><term>Plant Roots (growth & development)</term><term>Plant Roots (microbiology)</term><term>Plant Shoots (microbiology)</term><term>Plant Shoots (physiology)</term><term>Plants (microbiology)</term><term>Symbiosis (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Longévité (MeSH)</term><term>Mycelium (physiologie)</term><term>Mycorhizes (physiologie)</term><term>Plantes (microbiologie)</term><term>Pousses de plante (microbiologie)</term><term>Pousses de plante (physiologie)</term><term>Racines de plante (croissance et développement)</term><term>Racines de plante (microbiologie)</term><term>Symbiose (MeSH)</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Plantes</term><term>Pousses de plante</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Roots</term><term>Plant Shoots</term><term>Plants</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Mycelium</term><term>Mycorhizes</term><term>Pousses de plante</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycelium</term><term>Mycorrhizae</term><term>Plant Shoots</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Longevity</term><term>Symbiosis</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Longévité</term><term>Symbiose</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Arbuscular mycorrhizal fungi (AMF) are obligate symbionts, living in associations with the roots of most land plants. AMF produce wide networks of extraradical mycelium (ERM) of indeterminate length, spreading from host roots into the surrounding soil and establishing belowground interconnections among plants belonging to the same or to different taxa. Whether their lifespan and functionality are limited by host plant viability or can be extended beyond this limit is unknown. To address this issue, we performed time-course studies to investigate viability and functionality of ERM produced in an in vivo whole-plant system by Funneliformis mosseae and Rhizoglomus irregulare, after shoot detachment. Our data revealed that viability and functionality of F. mosseae and R. irregulare extraradical hyphae were uncoupled from host plant lifespan. Indeed, ERM spreading from roots of intact or shootless plants showed comparable levels of viability, similar structural traits and ability to establish mycorrhizal symbioses with new plants, as long as five months after shoot removal. Our findings expand the current knowledge on AMF biology and life cycle, providing data on ERM long-term survival in the soil of two Glomeracean species, functional to the prompt establishment of mycorrhizal symbioses and to the maintenance of soil biological fertility.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">29980700</PMID><DateCompleted><Year>2019</Year><Month>11</Month><Day>25</Day></DateCompleted><DateRevised><Year>2019</Year><Month>11</Month><Day>25</Day></DateRevised><Article PubModel="Electronic"><Journal><ISSN IssnType="Electronic">2045-2322</ISSN><JournalIssue CitedMedium="Internet"><Volume>8</Volume><Issue>1</Issue><PubDate><Year>2018</Year><Month>07</Month><Day>06</Day></PubDate></JournalIssue><Title>Scientific reports</Title><ISOAbbreviation>Sci Rep</ISOAbbreviation></Journal><ArticleTitle>Lifespan and functionality of mycorrhizal fungal mycelium are uncoupled from host plant lifespan.</ArticleTitle><Pagination><MedlinePgn>10235</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1038/s41598-018-28354-5</ELocationID><Abstract><AbstractText>Arbuscular mycorrhizal fungi (AMF) are obligate symbionts, living in associations with the roots of most land plants. AMF produce wide networks of extraradical mycelium (ERM) of indeterminate length, spreading from host roots into the surrounding soil and establishing belowground interconnections among plants belonging to the same or to different taxa. Whether their lifespan and functionality are limited by host plant viability or can be extended beyond this limit is unknown. To address this issue, we performed time-course studies to investigate viability and functionality of ERM produced in an in vivo whole-plant system by Funneliformis mosseae and Rhizoglomus irregulare, after shoot detachment. Our data revealed that viability and functionality of F. mosseae and R. irregulare extraradical hyphae were uncoupled from host plant lifespan. Indeed, ERM spreading from roots of intact or shootless plants showed comparable levels of viability, similar structural traits and ability to establish mycorrhizal symbioses with new plants, as long as five months after shoot removal. Our findings expand the current knowledge on AMF biology and life cycle, providing data on ERM long-term survival in the soil of two Glomeracean species, functional to the prompt establishment of mycorrhizal symbioses and to the maintenance of soil biological fertility.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Pepe</LastName><ForeName>Alessandra</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Department of Agriculture, Food and Environment, University of Pisa, Pisa, 56124, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Giovannetti</LastName><ForeName>Manuela</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Department of Agriculture, Food and Environment, University of Pisa, Pisa, 56124, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Sbrana</LastName><ForeName>Cristiana</ForeName><Initials>C</Initials><Identifier Source="ORCID">0000-0002-8058-8566</Identifier><AffiliationInfo><Affiliation>CNR-Institute of Agricultural Biology and Biotechnology, UOS Pisa, Pisa, 56124, Italy. sbrana@ibba.cnr.it.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2018</Year><Month>07</Month><Day>06</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Sci Rep</MedlineTA><NlmUniqueID>101563288</NlmUniqueID><ISSNLinking>2045-2322</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D008136" MajorTopicYN="Y">Longevity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D025282" MajorTopicYN="N">Mycelium</DescriptorName><QualifierName UI="Q000502" 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