Manipulation of the onset of ectomycorrhiza formation by indole-3-acetic acid, activated charcoal or relative humidity in the association between oak microcuttings and Piloderma croceum: influence on plant development and photosynthesis.
Identifieur interne : 003731 ( Main/Curation ); précédent : 003730; suivant : 003732Manipulation of the onset of ectomycorrhiza formation by indole-3-acetic acid, activated charcoal or relative humidity in the association between oak microcuttings and Piloderma croceum: influence on plant development and photosynthesis.
Auteurs : Sylvie Herrmann [Allemagne] ; Ralf Oelmüller ; François BuscotSource :
- Journal of plant physiology [ 0176-1617 ] ; 2004.
Descripteurs français
- KwdFr :
- Acides indolacétiques (pharmacologie), Champignons (physiologie), Charbon de bois (pharmacologie), Chlorophylle (analyse), Chlorophylle A (MeSH), Humidité (MeSH), Milieux de culture (MeSH), Mycorhizes (MeSH), Photosynthèse (MeSH), Quercus (croissance et développement), Quercus (microbiologie), Quercus (physiologie), Racines de plante (microbiologie), Racines de plante (métabolisme).
- MESH :
- analyse : Chlorophylle.
- croissance et développement : Quercus.
- microbiologie : Quercus, Racines de plante.
- métabolisme : Racines de plante.
- pharmacologie : Acides indolacétiques, Charbon de bois.
- physiologie : Champignons, Quercus.
- Chlorophylle A, Humidité, Milieux de culture, Mycorhizes, Photosynthèse.
English descriptors
- KwdEn :
- Charcoal (pharmacology), Chlorophyll (analysis), Chlorophyll A (MeSH), Culture Media (MeSH), Fungi (physiology), Humidity (MeSH), Indoleacetic Acids (pharmacology), Mycorrhizae (MeSH), Photosynthesis (MeSH), Plant Roots (metabolism), Plant Roots (microbiology), Quercus (growth & development), Quercus (microbiology), Quercus (physiology).
- MESH :
- chemical , analysis : Chlorophyll.
- chemical , pharmacology : Charcoal, Indoleacetic Acids.
- chemical : Chlorophyll A, Culture Media.
- growth & development : Quercus.
- metabolism : Plant Roots.
- microbiology : Plant Roots, Quercus.
- physiology : Fungi, Quercus.
- Humidity, Mycorrhizae, Photosynthesis.
Abstract
A Petri dish system in which development of oak (Quercus robur L.) microcuttings is stimulated by the late stage ectomycorrhizal (EM) fungus Piloderma croceum J. Erikss. & Hjortst. in a long pre-symbiotic stage was optimised to allow synchronous, rhythmic plant growth. Addition of indole-3-acetic acid or activated charcoal to the medium caused an early and more intensive EM formation coupled with suppression of most developmental effects of P. croceum. Leaf area, chlorophyll fluorescence, and content were compared in inoculated and uninoculated plants grown at two relative humidity levels (45 and 95%) and under consideration of three possible answers to inoculation, that is, no or EM formation after the 1st or the 2nd shoot flush. The culture conditions for uninoculated plants were suboptimal, leading toward photochemical stress reflected by a non photochemical quenching (qE) increase and a reduced Chl content at the end of the assay. Prior to EM formation, inoculation itself enhanced the optimal (Fv/Fm) and effective (phiPSII) quantum yield in leaves of the 1st shoot flush under reduced relative humidity. It also fully protected the plants against stress during the complete assays. The results indicate that inoculated plants only form EM once they have acquired a sufficient development level and C-providing capacity. However, the fungus actively improves the development and photosynthesis of plants up to the pre-mycorrhizal stage, helping them to reach this capacity.
DOI: 10.1078/0176-1617-01208
PubMed: 15202707
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photosynthesis.</title><author><name sortKey="Herrmann, Sylvie" sort="Herrmann, Sylvie" uniqKey="Herrmann S" first="Sylvie" last="Herrmann">Sylvie Herrmann</name><affiliation wicri:level="1"><nlm:affiliation>Institute of General Botany, Department of Plant Physiology, Friedrich-Schiller University of Jena, Dornburger Strasse 159, D-07743 Jena, Germany.</nlm:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute of General Botany, Department of Plant Physiology, Friedrich-Schiller University of Jena, Dornburger Strasse 159, D-07743 Jena</wicri:regionArea></affiliation></author><author><name sortKey="Oelmuller, Ralf" sort="Oelmuller, Ralf" uniqKey="Oelmuller R" first="Ralf" last="Oelmüller">Ralf Oelmüller</name></author><author><name sortKey="Buscot, Francois" sort="Buscot, Francois" uniqKey="Buscot F" first="François" last="Buscot">François Buscot</name></author></analytic><series><title level="j">Journal of plant physiology</title><idno 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(MeSH)</term><term>Mycorhizes (MeSH)</term><term>Photosynthèse (MeSH)</term><term>Quercus (croissance et développement)</term><term>Quercus (microbiologie)</term><term>Quercus (physiologie)</term><term>Racines de plante (microbiologie)</term><term>Racines de plante (métabolisme)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Chlorophyll</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Charcoal</term><term>Indoleacetic Acids</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Chlorophyll A</term><term>Culture Media</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Chlorophylle</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Quercus</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Quercus</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Quercus</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Roots</term><term>Quercus</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Acides indolacétiques</term><term>Charbon de bois</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Champignons</term><term>Quercus</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Fungi</term><term>Quercus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Humidity</term><term>Mycorrhizae</term><term>Photosynthesis</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Chlorophylle A</term><term>Humidité</term><term>Milieux de culture</term><term>Mycorhizes</term><term>Photosynthèse</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A Petri dish system in which development of oak (Quercus robur L.) microcuttings is stimulated by the late stage ectomycorrhizal (EM) fungus Piloderma croceum J. Erikss. & Hjortst. in a long pre-symbiotic stage was optimised to allow synchronous, rhythmic plant growth. Addition of indole-3-acetic acid or activated charcoal to the medium caused an early and more intensive EM formation coupled with suppression of most developmental effects of P. croceum. Leaf area, chlorophyll fluorescence, and content were compared in inoculated and uninoculated plants grown at two relative humidity levels (45 and 95%) and under consideration of three possible answers to inoculation, that is, no or EM formation after the 1st or the 2nd shoot flush. The culture conditions for uninoculated plants were suboptimal, leading toward photochemical stress reflected by a non photochemical quenching (qE) increase and a reduced Chl content at the end of the assay. Prior to EM formation, inoculation itself enhanced the optimal (Fv/Fm) and effective (phiPSII) quantum yield in leaves of the 1st shoot flush under reduced relative humidity. It also fully protected the plants against stress during the complete assays. The results indicate that inoculated plants only form EM once they have acquired a sufficient development level and C-providing capacity. However, the fungus actively improves the development and photosynthesis of plants up to the pre-mycorrhizal stage, helping them to reach this capacity.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15202707</PMID><DateCompleted><Year>2004</Year><Month>08</Month><Day>30</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0176-1617</ISSN><JournalIssue CitedMedium="Print"><Volume>161</Volume><Issue>5</Issue><PubDate><Year>2004</Year><Month>May</Month></PubDate></JournalIssue><Title>Journal of plant physiology</Title><ISOAbbreviation>J Plant Physiol</ISOAbbreviation></Journal><ArticleTitle>Manipulation of the onset of ectomycorrhiza formation by indole-3-acetic acid, activated charcoal or relative humidity in the association between oak microcuttings and Piloderma croceum: influence on plant development and photosynthesis.</ArticleTitle><Pagination><MedlinePgn>509-17</MedlinePgn></Pagination><Abstract><AbstractText>A Petri dish system in which development of oak (Quercus robur L.) microcuttings is stimulated by the late stage ectomycorrhizal (EM) fungus Piloderma croceum J. Erikss. & Hjortst. in a long pre-symbiotic stage was optimised to allow synchronous, rhythmic plant growth. Addition of indole-3-acetic acid or activated charcoal to the medium caused an early and more intensive EM formation coupled with suppression of most developmental effects of P. croceum. Leaf area, chlorophyll fluorescence, and content were compared in inoculated and uninoculated plants grown at two relative humidity levels (45 and 95%) and under consideration of three possible answers to inoculation, that is, no or EM formation after the 1st or the 2nd shoot flush. The culture conditions for uninoculated plants were suboptimal, leading toward photochemical stress reflected by a non photochemical quenching (qE) increase and a reduced Chl content at the end of the assay. Prior to EM formation, inoculation itself enhanced the optimal (Fv/Fm) and effective (phiPSII) quantum yield in leaves of the 1st shoot flush under reduced relative humidity. It also fully protected the plants against stress during the complete assays. The results indicate that inoculated plants only form EM once they have acquired a sufficient development level and C-providing capacity. 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