MycorrhizaeV1, Main, Exploration, bibRecord, 002A33

Evidence of a myco-heterotroph in the plant family Ericaceae that lacks mycorrhizal specificity.

Identifieur interne : 002A33 ( Main/Exploration ); précédent : 002A32; suivant : 002A34

Evidence of a myco-heterotroph in the plant family Ericaceae that lacks mycorrhizal specificity.

Auteurs : Nicole A. Hynson [États-Unis] ; Thomas D. Bruns

Source :

Proceedings. Biological sciences [ 0962-8452 ] ; 2009.

RBID : pubmed:19740879

Descripteurs français

KwdFr :
- Animaux (MeSH), Ericaceae (classification), Ericaceae (génétique), Ericaceae (microbiologie), Mycorhizes (physiologie), Racines de plante (microbiologie), Spécificité d'espèce (MeSH).
MESH :
- génétique : Ericaceae.
- microbiologie : Ericaceae, Racines de plante.
- physiologie : Mycorhizes.
- classification : Animaux, Ericaceae, Spécificité d'espèce.

English descriptors

KwdEn :
- Animals (MeSH), Ericaceae (classification), Ericaceae (genetics), Ericaceae (microbiology), Mycorrhizae (physiology), Plant Roots (microbiology), Species Specificity (MeSH).
MESH :
- classification : Ericaceae.
- genetics : Ericaceae.
- microbiology : Ericaceae, Plant Roots.
- physiology : Mycorrhizae.
- Animals, Species Specificity.

Abstract

Myco-heterotrophy is one of the longest-studied aspects of the mycorrhizal symbiosis, but there remain many critical, unanswered questions regarding the ecology and physiology of myco-heterotrophic plants and their associated fungi. The vast majority of all myco-heterotrophs studied to date have exhibited specificity towards narrow lineages of fungi, but it is unclear whether the loss of photosynthesis in these plants is contingent upon fungal specialization. Here, we examine the fungal associates of the myco-heterotroph Pyrola aphylla (Ericaceae) and its closest green relative Pyrola picta to determine the pattern of mycorrhizal specialization. Our findings show that both plant species associate with a range of root-inhabiting fungi, the majority of which are ectomycorrhizal taxa. This study provides the first example of a eudicotyledonous myco-heterotroph that is a mycorrhizal generalist, indicating that the loss of photosynthesis in myco-heterotrophs is not contingent upon fungal specialization.

DOI: 10.1098/rspb.2009.1190
PubMed: 19740879
PubMed Central: PMC2825784

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Myco-heterotrophy is one of the longest-studied aspects of the mycorrhizal symbiosis, but there remain many critical, unanswered questions regarding the ecology and physiology of myco-heterotrophic plants and their associated fungi. The vast majority of all myco-heterotrophs studied to date have exhibited specificity towards narrow lineages of fungi, but it is unclear whether the loss of photosynthesis in these plants is contingent upon fungal specialization. Here, we examine the fungal associates of the myco-heterotroph Pyrola aphylla (Ericaceae) and its closest green relative Pyrola picta to determine the pattern of mycorrhizal specialization. Our findings show that both plant species associate with a range of root-inhabiting fungi, the majority of which are ectomycorrhizal taxa. This study provides the first example of a eudicotyledonous myco-heterotroph that is a mycorrhizal generalist, indicating that the loss of photosynthesis in myco-heterotrophs is not contingent upon fungal specialization.</div>
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Evidence of a myco-heterotroph in the plant family Ericaceae that lacks mycorrhizal specificity.

Evidence of a myco-heterotroph in the plant family Ericaceae that lacks mycorrhizal specificity.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki