Serveur d'exploration sur la mycorhize

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Boron uptake by ectomycorrhizas of silver birch.

Identifieur interne : 003796 ( Main/Corpus ); précédent : 003795; suivant : 003797

Boron uptake by ectomycorrhizas of silver birch.

Auteurs : T. Lehto ; A. Lavola ; E. Kallio ; P J Aphalo

Source :

RBID : pubmed:14745630

English descriptors

Abstract

Boron (B) is an essential micronutrient for plants but it is thought not to be essential for fungi. We studied whether the extraradical mycelia of Paxillus involutus in symbiosis with silver birch (Betula pendula) take up B and transport it to the host plant. We grew mycorrhizal plants in flat microcosms with a partitioning wall, below which there was only extraradical mycelium. A boric acid solution enriched in 10B was applied to these mycelia. Increased 10B/11B isotope ratios were subsequently measured in birch leaves, stems, and roots plus mycorrhizas in the upper compartment. Boron was therefore taken up by the mycorrhizal mycelia and transported to the host plant in this species combination.

DOI: 10.1007/s00572-003-0290-1
PubMed: 14745630

Links to Exploration step

pubmed:14745630

Le document en format XML

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<nlm:affiliation>Faculty of Forestry, University of Joensuu, P.O. Box 111, 80101, Finland. tarja.lehto@joensuu.fi</nlm:affiliation>
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<name sortKey="Lavola, A" sort="Lavola, A" uniqKey="Lavola A" first="A" last="Lavola">A. Lavola</name>
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<term>Basidiomycota (metabolism)</term>
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<term>Boron (metabolism)</term>
<term>Mycelium (metabolism)</term>
<term>Mycorrhizae (metabolism)</term>
<term>Symbiosis (MeSH)</term>
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<term>Boron</term>
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<term>Basidiomycota</term>
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<div type="abstract" xml:lang="en">Boron (B) is an essential micronutrient for plants but it is thought not to be essential for fungi. We studied whether the extraradical mycelia of Paxillus involutus in symbiosis with silver birch (Betula pendula) take up B and transport it to the host plant. We grew mycorrhizal plants in flat microcosms with a partitioning wall, below which there was only extraradical mycelium. A boric acid solution enriched in 10B was applied to these mycelia. Increased 10B/11B isotope ratios were subsequently measured in birch leaves, stems, and roots plus mycorrhizas in the upper compartment. Boron was therefore taken up by the mycorrhizal mycelia and transported to the host plant in this species combination.</div>
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<AbstractText>Boron (B) is an essential micronutrient for plants but it is thought not to be essential for fungi. We studied whether the extraradical mycelia of Paxillus involutus in symbiosis with silver birch (Betula pendula) take up B and transport it to the host plant. We grew mycorrhizal plants in flat microcosms with a partitioning wall, below which there was only extraradical mycelium. A boric acid solution enriched in 10B was applied to these mycelia. Increased 10B/11B isotope ratios were subsequently measured in birch leaves, stems, and roots plus mycorrhizas in the upper compartment. Boron was therefore taken up by the mycorrhizal mycelia and transported to the host plant in this species combination.</AbstractText>
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