Comparative effects of auxin transport inhibitors on rhizogenesis and mycorrhizal establishment of spruce seedlings inoculated with Laccaria bicolor.
Identifieur interne : 003897 ( Main/Corpus ); précédent : 003896; suivant : 003898Comparative effects of auxin transport inhibitors on rhizogenesis and mycorrhizal establishment of spruce seedlings inoculated with Laccaria bicolor.
Auteurs : Ana Rinc N ; Outi Priha ; Bruno Sotta ; Magda Bonnet ; François Le TaconSource :
- Tree physiology [ 0829-318X ] ; 2003.
English descriptors
- KwdEn :
- Agaricales (physiology), Indoleacetic Acids (antagonists & inhibitors), Mycorrhizae (physiology), Phthalimides (pharmacology), Picea (microbiology), Picea (physiology), Plant Roots (microbiology), Plant Roots (physiology), Seedlings (microbiology), Seedlings (physiology), Trees (microbiology), Trees (physiology), Triiodobenzoic Acids (pharmacology).
- MESH :
- chemical , antagonists & inhibitors : Indoleacetic Acids.
- chemical , pharmacology : Phthalimides, Triiodobenzoic Acids.
- microbiology : Picea, Plant Roots, Seedlings, Trees.
- physiology : Agaricales, Mycorrhizae, Picea, Plant Roots, Seedlings, Trees.
Abstract
We compared the effects of two auxin transport inhibitors (2,3,5-triiodobenzoic acid (TIBA) and 1-N-naphthylphthalamic acid (NPA)) on rhizogenesis and mycorrhizal establishment of Picea abies L. (Karst.) seedlings inoculated with Laccaria bicolor S238N (Maire) Orton. Inoculation of seedlings with L. bicolor under in vitro conditions strongly increased host root and shoot growth. Although TIBA had no effect on taproot growth, NPA decreased taproot growth and deformed the root apex into a globular shape in both non-inoculated seedlings and seedlings inoculated with L. bicolor. Inoculation with L. bicolor strongly increased lateral rhizogenesis of the seedlings, and application of 100 microM indole-3-acetic acid (IAA) partially reproduced this effect. Although TIBA completely inhibited the stimulatory effect of L. bicolor on lateral root formation, NPA inhibited it only partially. Both TIBA and NPA counteracted the effect of exogenous IAA on lateral rhizogenesis. Inoculation with L. bicolor significantly increased shoot growth and seedling dry biomass, whereas application of exogenous IAA had no effect on either parameter. There was no effect of NPA on shoot growth and biomass production. The presence of TIBA completely prevented the development of ectomycorrhizal structures (mantle and Hartig net). In the presence of NPA, the number of seedlings colonized by the fungus was reduced and the degree of development of ectomycorrhizal structures was variable, but not completely prevented. In medium lacking tryptophan, neither TIBA nor NPA inhibited the release of IAA produced by L. bicolor in pure culture. When 100 microM tryptophan was added to the medium, TIBA significantly increased the amount of IAA released by the fungus, whereas NPA had no significant effect. We conclude that fungal IAA plays an important role in plant rhizogenesis and in the establishment of ectomycorrhizal symbiosis.
DOI: 10.1093/treephys/23.11.785
PubMed: 12839732
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pubmed:12839732Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Comparative effects of auxin transport inhibitors on rhizogenesis and mycorrhizal establishment of spruce seedlings inoculated with Laccaria bicolor.</title><author><name sortKey="Rinc N, Ana" sort="Rinc N, Ana" uniqKey="Rinc N A" first="Ana" last="Rinc N">Ana Rinc N</name><affiliation><nlm:affiliation>Unité Mixte de Recherches Interactions Arbres-Microorganismes, INRA Centre de Nancy, 54280 Champenoux, France.</nlm:affiliation></affiliation></author><author><name sortKey="Priha, Outi" sort="Priha, Outi" uniqKey="Priha O" first="Outi" last="Priha">Outi Priha</name></author><author><name sortKey="Sotta, Bruno" sort="Sotta, Bruno" uniqKey="Sotta B" first="Bruno" last="Sotta">Bruno Sotta</name></author><author><name sortKey="Bonnet, Magda" sort="Bonnet, Magda" uniqKey="Bonnet M" first="Magda" last="Bonnet">Magda Bonnet</name></author><author><name sortKey="Le Tacon, Francois" sort="Le Tacon, Francois" uniqKey="Le Tacon F" first="François" last="Le Tacon">François Le Tacon</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2003">2003</date><idno type="RBID">pubmed:12839732</idno><idno type="pmid">12839732</idno><idno type="doi">10.1093/treephys/23.11.785</idno><idno type="wicri:Area/Main/Corpus">003897</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003897</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Comparative effects of auxin transport inhibitors on rhizogenesis and mycorrhizal establishment of spruce seedlings inoculated with Laccaria bicolor.</title><author><name sortKey="Rinc N, Ana" sort="Rinc N, Ana" uniqKey="Rinc N A" first="Ana" last="Rinc N">Ana Rinc N</name><affiliation><nlm:affiliation>Unité Mixte de Recherches Interactions Arbres-Microorganismes, INRA Centre de Nancy, 54280 Champenoux, France.</nlm:affiliation></affiliation></author><author><name sortKey="Priha, Outi" sort="Priha, Outi" uniqKey="Priha O" first="Outi" last="Priha">Outi Priha</name></author><author><name sortKey="Sotta, Bruno" sort="Sotta, Bruno" uniqKey="Sotta B" first="Bruno" last="Sotta">Bruno Sotta</name></author><author><name sortKey="Bonnet, Magda" sort="Bonnet, Magda" uniqKey="Bonnet M" first="Magda" last="Bonnet">Magda Bonnet</name></author><author><name sortKey="Le Tacon, Francois" sort="Le Tacon, Francois" uniqKey="Le Tacon F" first="François" last="Le Tacon">François Le Tacon</name></author></analytic><series><title level="j">Tree physiology</title><idno type="ISSN">0829-318X</idno><imprint><date when="2003" type="published">2003</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Agaricales (physiology)</term><term>Indoleacetic Acids (antagonists & inhibitors)</term><term>Mycorrhizae (physiology)</term><term>Phthalimides (pharmacology)</term><term>Picea (microbiology)</term><term>Picea (physiology)</term><term>Plant Roots (microbiology)</term><term>Plant Roots (physiology)</term><term>Seedlings (microbiology)</term><term>Seedlings (physiology)</term><term>Trees (microbiology)</term><term>Trees (physiology)</term><term>Triiodobenzoic Acids (pharmacology)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="antagonists & inhibitors" xml:lang="en"><term>Indoleacetic Acids</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Phthalimides</term><term>Triiodobenzoic Acids</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Picea</term><term>Plant Roots</term><term>Seedlings</term><term>Trees</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Agaricales</term><term>Mycorrhizae</term><term>Picea</term><term>Plant Roots</term><term>Seedlings</term><term>Trees</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We compared the effects of two auxin transport inhibitors (2,3,5-triiodobenzoic acid (TIBA) and 1-N-naphthylphthalamic acid (NPA)) on rhizogenesis and mycorrhizal establishment of Picea abies L. (Karst.) seedlings inoculated with Laccaria bicolor S238N (Maire) Orton. Inoculation of seedlings with L. bicolor under in vitro conditions strongly increased host root and shoot growth. Although TIBA had no effect on taproot growth, NPA decreased taproot growth and deformed the root apex into a globular shape in both non-inoculated seedlings and seedlings inoculated with L. bicolor. Inoculation with L. bicolor strongly increased lateral rhizogenesis of the seedlings, and application of 100 microM indole-3-acetic acid (IAA) partially reproduced this effect. Although TIBA completely inhibited the stimulatory effect of L. bicolor on lateral root formation, NPA inhibited it only partially. Both TIBA and NPA counteracted the effect of exogenous IAA on lateral rhizogenesis. Inoculation with L. bicolor significantly increased shoot growth and seedling dry biomass, whereas application of exogenous IAA had no effect on either parameter. There was no effect of NPA on shoot growth and biomass production. The presence of TIBA completely prevented the development of ectomycorrhizal structures (mantle and Hartig net). In the presence of NPA, the number of seedlings colonized by the fungus was reduced and the degree of development of ectomycorrhizal structures was variable, but not completely prevented. In medium lacking tryptophan, neither TIBA nor NPA inhibited the release of IAA produced by L. bicolor in pure culture. When 100 microM tryptophan was added to the medium, TIBA significantly increased the amount of IAA released by the fungus, whereas NPA had no significant effect. We conclude that fungal IAA plays an important role in plant rhizogenesis and in the establishment of ectomycorrhizal symbiosis.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">12839732</PMID><DateCompleted><Year>2005</Year><Month>05</Month><Day>11</Day></DateCompleted><DateRevised><Year>2019</Year><Month>05</Month><Day>13</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0829-318X</ISSN><JournalIssue CitedMedium="Print"><Volume>23</Volume><Issue>11</Issue><PubDate><Year>2003</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Comparative effects of auxin transport inhibitors on rhizogenesis and mycorrhizal establishment of spruce seedlings inoculated with Laccaria bicolor.</ArticleTitle><Pagination><MedlinePgn>785-91</MedlinePgn></Pagination><Abstract><AbstractText>We compared the effects of two auxin transport inhibitors (2,3,5-triiodobenzoic acid (TIBA) and 1-N-naphthylphthalamic acid (NPA)) on rhizogenesis and mycorrhizal establishment of Picea abies L. (Karst.) seedlings inoculated with Laccaria bicolor S238N (Maire) Orton. Inoculation of seedlings with L. bicolor under in vitro conditions strongly increased host root and shoot growth. Although TIBA had no effect on taproot growth, NPA decreased taproot growth and deformed the root apex into a globular shape in both non-inoculated seedlings and seedlings inoculated with L. bicolor. Inoculation with L. bicolor strongly increased lateral rhizogenesis of the seedlings, and application of 100 microM indole-3-acetic acid (IAA) partially reproduced this effect. Although TIBA completely inhibited the stimulatory effect of L. bicolor on lateral root formation, NPA inhibited it only partially. Both TIBA and NPA counteracted the effect of exogenous IAA on lateral rhizogenesis. Inoculation with L. bicolor significantly increased shoot growth and seedling dry biomass, whereas application of exogenous IAA had no effect on either parameter. There was no effect of NPA on shoot growth and biomass production. The presence of TIBA completely prevented the development of ectomycorrhizal structures (mantle and Hartig net). In the presence of NPA, the number of seedlings colonized by the fungus was reduced and the degree of development of ectomycorrhizal structures was variable, but not completely prevented. In medium lacking tryptophan, neither TIBA nor NPA inhibited the release of IAA produced by L. bicolor in pure culture. When 100 microM tryptophan was added to the medium, TIBA significantly increased the amount of IAA released by the fungus, whereas NPA had no significant effect. We conclude that fungal IAA plays an important role in plant rhizogenesis and in the establishment of ectomycorrhizal symbiosis.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Rincón</LastName><ForeName>Ana</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Unité Mixte de Recherches Interactions Arbres-Microorganismes, INRA Centre de Nancy, 54280 Champenoux, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Priha</LastName><ForeName>Outi</ForeName><Initials>O</Initials></Author><Author ValidYN="Y"><LastName>Sotta</LastName><ForeName>Bruno</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Bonnet</LastName><ForeName>Magda</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Le Tacon</LastName><ForeName>François</ForeName><Initials>F</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D007210">Indoleacetic Acids</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010797">Phthalimides</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D014283">Triiodobenzoic Acids</NameOfSubstance></Chemical><Chemical><RegistryNumber>306R88V86P</RegistryNumber><NameOfSubstance UI="C002687">alpha-naphthylphthalamic acid</NameOfSubstance></Chemical><Chemical><RegistryNumber>H575A4059Q</RegistryNumber><NameOfSubstance UI="C052968">2,3,5-triiodobenzoic acid</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000363" MajorTopicYN="N">Agaricales</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D007210" MajorTopicYN="N">Indoleacetic Acids</DescriptorName><QualifierName UI="Q000037" MajorTopicYN="Y">antagonists & inhibitors</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010797" MajorTopicYN="N">Phthalimides</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D028222" MajorTopicYN="N">Picea</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D036226" MajorTopicYN="N">Seedlings</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014283" MajorTopicYN="N">Triiodobenzoic Acids</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2003</Year><Month>7</Month><Day>4</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2005</Year><Month>5</Month><Day>12</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2003</Year><Month>7</Month><Day>4</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">12839732</ArticleId><ArticleId IdType="doi">10.1093/treephys/23.11.785</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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