PoplarV1, Main, Exploration, bibRecord, 003458

The ectomycorrhizal morphotype Pinirhiza sclerotia is formed by Acephala macrosclerotiorum sp. nov., a close relative of Phialocephala fortinii.

Identifieur interne : 003458 ( Main/Exploration ); précédent : 003457; suivant : 003459

The ectomycorrhizal morphotype Pinirhiza sclerotia is formed by Acephala macrosclerotiorum sp. nov., a close relative of Phialocephala fortinii.

Auteurs : Babette Münzenberger [Allemagne] ; Ben Bubner [Allemagne] ; Jens Wöllecke [Allemagne] ; Thomas N. Sieber [Suisse] ; Robert Bauer [Allemagne] ; Matthias Fladung [Allemagne] ; Reinhard F. Hüttl [Allemagne]

Source :

Mycorrhiza [ 1432-1890 ] ; 2009.

RBID : pubmed:19415343

Descripteurs français

KwdFr :
- Ascomycota (classification), Ascomycota (croissance et développement), Ascomycota (génétique), Ascomycota (isolement et purification), Données de séquences moléculaires (MeSH), Mycelium (classification), Mycelium (croissance et développement), Mycelium (génétique), Mycelium (isolement et purification), Mycorhizes (classification), Mycorhizes (croissance et développement), Mycorhizes (génétique), Mycorhizes (isolement et purification), Phylogenèse (MeSH), Racines de plante (microbiologie).
MESH :
- croissance et développement : Ascomycota, Mycelium, Mycorhizes.
- génétique : Ascomycota, Mycelium, Mycorhizes.
- isolement et purification : Ascomycota, Mycelium, Mycorhizes.
- microbiologie : Racines de plante.
- classification : Ascomycota, Données de séquences moléculaires, Mycelium, Mycorhizes, Phylogenèse.

English descriptors

KwdEn :
- Ascomycota (classification), Ascomycota (genetics), Ascomycota (growth & development), Ascomycota (isolation & purification), Molecular Sequence Data (MeSH), Mycelium (classification), Mycelium (genetics), Mycelium (growth & development), Mycelium (isolation & purification), Mycorrhizae (classification), Mycorrhizae (genetics), Mycorrhizae (growth & development), Mycorrhizae (isolation & purification), Phylogeny (MeSH), Plant Roots (microbiology).
MESH :
- classification : Ascomycota, Mycelium, Mycorrhizae.
- genetics : Ascomycota, Mycelium, Mycorrhizae.
- growth & development : Ascomycota, Mycelium, Mycorrhizae.
- isolation & purification : Ascomycota, Mycelium, Mycorrhizae.
- microbiology : Plant Roots.
- Molecular Sequence Data, Phylogeny.

Abstract

Relatively few ectomycorrhizal fungal species are known to form sclerotia. Usually, sclerotia are initiated at the extraradical mycelium. In this study, we present anatomical and ultrastructural evidence for the formation of sclerotia directly in the hyphal mantle of the mycorrhizal morphotype Pinirhiza sclerotia. A dark-pigmented fungal strain was isolated from Pinirhiza sclerotia and identified by molecular tools as Acephala macrosclerotiorum sp. nov., a close relative of Phialocephala fortinii s.l. As dark septate fungi are known to be mostly endophytic, resyntheses with Pinus sylvestris and A. macrosclerotiorum as well as Populus tremula x Populus tremuloides and A. macrosclerotiorum or P. fortinii s.l. were performed under axenic conditions. No mycorrhizas were found when hybrid aspen was inoculated with A. macrosclerotiorum or P. fortinii. However, A. macrosclerotiorum formed true ectomycorrhizas in vitro with P. sylvestris. Anatomical and ultrastructural features of this ectomycorrhiza are presented. The natural and synthesized ectomycorrhizal morphotypes were identical and characterized by a thin hyphal mantle that bore sclerotia in a later ontogenetic stage. The Hartig net was well-developed and grew up to the endodermis. To our knowledge, this is the first evidence at the anatomical and ultrastructural level that a close relative of P. fortinii s.l. forms true ectomycorrhizas with a coniferous host.

DOI: 10.1007/s00572-009-0239-0
PubMed: 19415343

Affiliations:

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Le document en format XML

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<term>Ascomycota (isolation & purification)</term>
<term>Molecular Sequence Data (MeSH)</term>
<term>Mycelium (classification)</term>
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<term>Mycelium (growth & development)</term>
<term>Mycelium (isolation & purification)</term>
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<term>Mycorrhizae (genetics)</term>
<term>Mycorrhizae (growth & development)</term>
<term>Mycorrhizae (isolation & purification)</term>
<term>Phylogeny (MeSH)</term>
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<term>Ascomycota (croissance et développement)</term>
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<term>Ascomycota (isolement et purification)</term>
<term>Données de séquences moléculaires (MeSH)</term>
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<term>Mycelium (génétique)</term>
<term>Mycelium (isolement et purification)</term>
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<front><div type="abstract" xml:lang="en">Relatively few ectomycorrhizal fungal species are known to form sclerotia. Usually, sclerotia are initiated at the extraradical mycelium. In this study, we present anatomical and ultrastructural evidence for the formation of sclerotia directly in the hyphal mantle of the mycorrhizal morphotype Pinirhiza sclerotia. A dark-pigmented fungal strain was isolated from Pinirhiza sclerotia and identified by molecular tools as Acephala macrosclerotiorum sp. nov., a close relative of Phialocephala fortinii s.l. As dark septate fungi are known to be mostly endophytic, resyntheses with Pinus sylvestris and A. macrosclerotiorum as well as Populus tremula x Populus tremuloides and A. macrosclerotiorum or P. fortinii s.l. were performed under axenic conditions. No mycorrhizas were found when hybrid aspen was inoculated with A. macrosclerotiorum or P. fortinii. However, A. macrosclerotiorum formed true ectomycorrhizas in vitro with P. sylvestris. Anatomical and ultrastructural features of this ectomycorrhiza are presented. The natural and synthesized ectomycorrhizal morphotypes were identical and characterized by a thin hyphal mantle that bore sclerotia in a later ontogenetic stage. The Hartig net was well-developed and grew up to the endodermis. To our knowledge, this is the first evidence at the anatomical and ultrastructural level that a close relative of P. fortinii s.l. forms true ectomycorrhizas with a coniferous host.</div>
</front>
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<Month>10</Month>
<Day>21</Day>
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<DateRevised><Year>2018</Year>
<Month>11</Month>
<Day>13</Day>
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<Month>Sep</Month>
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<Title>Mycorrhiza</Title>
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<ArticleTitle>The ectomycorrhizal morphotype Pinirhiza sclerotia is formed by Acephala macrosclerotiorum sp. nov., a close relative of Phialocephala fortinii.</ArticleTitle>
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<Abstract><AbstractText>Relatively few ectomycorrhizal fungal species are known to form sclerotia. Usually, sclerotia are initiated at the extraradical mycelium. In this study, we present anatomical and ultrastructural evidence for the formation of sclerotia directly in the hyphal mantle of the mycorrhizal morphotype Pinirhiza sclerotia. A dark-pigmented fungal strain was isolated from Pinirhiza sclerotia and identified by molecular tools as Acephala macrosclerotiorum sp. nov., a close relative of Phialocephala fortinii s.l. As dark septate fungi are known to be mostly endophytic, resyntheses with Pinus sylvestris and A. macrosclerotiorum as well as Populus tremula x Populus tremuloides and A. macrosclerotiorum or P. fortinii s.l. were performed under axenic conditions. No mycorrhizas were found when hybrid aspen was inoculated with A. macrosclerotiorum or P. fortinii. However, A. macrosclerotiorum formed true ectomycorrhizas in vitro with P. sylvestris. Anatomical and ultrastructural features of this ectomycorrhiza are presented. The natural and synthesized ectomycorrhizal morphotypes were identical and characterized by a thin hyphal mantle that bore sclerotia in a later ontogenetic stage. The Hartig net was well-developed and grew up to the endodermis. To our knowledge, this is the first evidence at the anatomical and ultrastructural level that a close relative of P. fortinii s.l. forms true ectomycorrhizas with a coniferous host.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Münzenberger</LastName>
<ForeName>Babette</ForeName>
<Initials>B</Initials>
<AffiliationInfo><Affiliation>Institute of Landscape Matter Dynamics, Leibniz-Centre for Agricultural Landscape Research (ZALF), Eberswalder Straße 84, 15374, Müncheberg, Germany. bmuenzenberger@zalf.de.</Affiliation>
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   |texte=   The ectomycorrhizal morphotype Pinirhiza sclerotia is formed by Acephala macrosclerotiorum sp. nov., a close relative of Phialocephala fortinii.
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The ectomycorrhizal morphotype Pinirhiza sclerotia is formed by Acephala macrosclerotiorum sp. nov., a close relative of Phialocephala fortinii.

The ectomycorrhizal morphotype Pinirhiza sclerotia is formed by Acephala macrosclerotiorum sp. nov., a close relative of Phialocephala fortinii.

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