An experimental system to study responses of Medicago truncatula roots to chitin oligomers of high degree of polymerization and other microbial elicitors.
Identifieur interne : 001383 ( Main/Exploration ); précédent : 001382; suivant : 001384An experimental system to study responses of Medicago truncatula roots to chitin oligomers of high degree of polymerization and other microbial elicitors.
Auteurs : A. Nars [France] ; T. Rey ; C. Lafitte ; S. Vergnes ; S. Amatya ; C. Jacquet ; B. Dumas ; C. Thibaudeau ; L. Heux ; A. Bottin ; J. FliegmannSource :
- Plant cell reports [ 1432-203X ] ; 2013.
Descripteurs français
- KwdFr :
- Acétylation (MeSH), Aphanomyces (MeSH), Arabidopsis (physiologie), Chitine (composition chimique), Chitine (pharmacologie), Espèces réactives de l'oxygène (métabolisme), Maladies des plantes (MeSH), Medicago truncatula (effets des médicaments et des substances chimiques), Medicago truncatula (génétique), Medicago truncatula (physiologie), Phytophthora (MeSH), Polymérisation (MeSH), Protein-Serine-Threonine Kinases (métabolisme), Protéines d'Arabidopsis (métabolisme), Racines de plante (effets des médicaments et des substances chimiques), Racines de plante (génétique), Racines de plante (physiologie), Régulation de l'expression des gènes végétaux (MeSH), Spectroscopie par résonance magnétique (MeSH).
- MESH :
- composition chimique : Chitine.
- effets des médicaments et des substances chimiques : Medicago truncatula, Racines de plante.
- génétique : Medicago truncatula, Racines de plante.
- métabolisme : Espèces réactives de l'oxygène, Protein-Serine-Threonine Kinases, Protéines d'Arabidopsis.
- pharmacologie : Chitine.
- physiologie : Arabidopsis, Medicago truncatula, Racines de plante.
- Acétylation, Aphanomyces, Maladies des plantes, Phytophthora, Polymérisation, Régulation de l'expression des gènes végétaux, Spectroscopie par résonance magnétique.
English descriptors
- KwdEn :
- Acetylation (MeSH), Aphanomyces (MeSH), Arabidopsis (physiology), Arabidopsis Proteins (metabolism), Chitin (chemistry), Chitin (pharmacology), Gene Expression Regulation, Plant (MeSH), Magnetic Resonance Spectroscopy (MeSH), Medicago truncatula (drug effects), Medicago truncatula (genetics), Medicago truncatula (physiology), Phytophthora (MeSH), Plant Diseases (MeSH), Plant Roots (drug effects), Plant Roots (genetics), Plant Roots (physiology), Polymerization (MeSH), Protein-Serine-Threonine Kinases (metabolism), Reactive Oxygen Species (metabolism).
- MESH :
- chemical , chemistry : Chitin.
- chemical , metabolism : Arabidopsis Proteins, Protein-Serine-Threonine Kinases, Reactive Oxygen Species.
- chemical , pharmacology : Chitin.
- drug effects : Medicago truncatula, Plant Roots.
- genetics : Medicago truncatula, Plant Roots.
- physiology : Arabidopsis, Medicago truncatula, Plant Roots.
- Acetylation, Aphanomyces, Gene Expression Regulation, Plant, Magnetic Resonance Spectroscopy, Phytophthora, Plant Diseases, Polymerization.
Abstract
KEY MESSAGE
A fully acetylated, soluble CO preparation of mean DP of ca. 7 was perceived with high sensitivity by M. truncatula in a newly designed versatile root elicitation assay. The root system of legume plants interacts with a large variety of microorganisms, either pathogenic or symbiotic. Understanding how legumes recognize and respond specifically to pathogen-associated or symbiotic signals requires the development of standardized bioassays using well-defined preparations of the corresponding signals. Here we describe the preparation of chitin oligosaccharide (CO) fractions from commercial chitin and their characterization by a combination of liquid-state and solid-state nuclear magnetic resonance spectroscopy. We show that the CO fraction with highest degree of polymerization (DP) became essentially insoluble after lyophilization. However, a fully soluble, fully acetylated fraction with a mean DP of ca. 7 was recovered and validated by showing its CERK1-dependent activity in Arabidopsis thaliana. In parallel, we developed a versatile root elicitation bioassay in the model legume Medicago truncatula, using a hydroponic culture system and the Phytophthora β-glucan elicitor as a control elicitor. We then showed that M. truncatula responded with high sensitivity to the CO elicitor, which caused the production of extracellular reactive oxygen species and the transient induction of a variety of defense-associated genes. In addition, the bioassay allowed detection of elicitor activity in culture filtrates of the oomycete Aphanomyces euteiches, opening the way to the analysis of recognition of this important legume root pathogen by M. truncatula.
DOI: 10.1007/s00299-012-1380-3
PubMed: 23314495
Affiliations:
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Fliegmann</name></author></analytic><series><title level="j">Plant cell reports</title><idno type="eISSN">1432-203X</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acetylation (MeSH)</term><term>Aphanomyces (MeSH)</term><term>Arabidopsis (physiology)</term><term>Arabidopsis Proteins (metabolism)</term><term>Chitin (chemistry)</term><term>Chitin (pharmacology)</term><term>Gene Expression Regulation, Plant (MeSH)</term><term>Magnetic Resonance Spectroscopy (MeSH)</term><term>Medicago truncatula (drug effects)</term><term>Medicago truncatula (genetics)</term><term>Medicago truncatula (physiology)</term><term>Phytophthora (MeSH)</term><term>Plant Diseases (MeSH)</term><term>Plant Roots (drug effects)</term><term>Plant Roots (genetics)</term><term>Plant Roots (physiology)</term><term>Polymerization (MeSH)</term><term>Protein-Serine-Threonine Kinases (metabolism)</term><term>Reactive Oxygen Species (metabolism)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acétylation (MeSH)</term><term>Aphanomyces (MeSH)</term><term>Arabidopsis (physiologie)</term><term>Chitine (composition chimique)</term><term>Chitine (pharmacologie)</term><term>Espèces réactives de l'oxygène (métabolisme)</term><term>Maladies des plantes (MeSH)</term><term>Medicago truncatula (effets des médicaments et des substances chimiques)</term><term>Medicago truncatula (génétique)</term><term>Medicago truncatula (physiologie)</term><term>Phytophthora (MeSH)</term><term>Polymérisation (MeSH)</term><term>Protein-Serine-Threonine Kinases (métabolisme)</term><term>Protéines d'Arabidopsis (métabolisme)</term><term>Racines de plante (effets des médicaments et des substances chimiques)</term><term>Racines de plante (génétique)</term><term>Racines de plante (physiologie)</term><term>Régulation de l'expression des gènes végétaux (MeSH)</term><term>Spectroscopie par résonance magnétique (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Chitin</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Arabidopsis Proteins</term><term>Protein-Serine-Threonine Kinases</term><term>Reactive Oxygen Species</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Chitin</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Chitine</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Medicago truncatula</term><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Medicago truncatula</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Medicago truncatula</term><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Medicago truncatula</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Espèces réactives de l'oxygène</term><term>Protein-Serine-Threonine Kinases</term><term>Protéines d'Arabidopsis</term></keywords><keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Chitine</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Arabidopsis</term><term>Medicago truncatula</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Arabidopsis</term><term>Medicago truncatula</term><term>Plant Roots</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Acetylation</term><term>Aphanomyces</term><term>Gene Expression Regulation, Plant</term><term>Magnetic Resonance Spectroscopy</term><term>Phytophthora</term><term>Plant Diseases</term><term>Polymerization</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Acétylation</term><term>Aphanomyces</term><term>Maladies des plantes</term><term>Phytophthora</term><term>Polymérisation</term><term>Régulation de l'expression des gènes végétaux</term><term>Spectroscopie par résonance magnétique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><b>KEY MESSAGE</b></p><p>A fully acetylated, soluble CO preparation of mean DP of ca. 7 was perceived with high sensitivity by M. truncatula in a newly designed versatile root elicitation assay. The root system of legume plants interacts with a large variety of microorganisms, either pathogenic or symbiotic. Understanding how legumes recognize and respond specifically to pathogen-associated or symbiotic signals requires the development of standardized bioassays using well-defined preparations of the corresponding signals. Here we describe the preparation of chitin oligosaccharide (CO) fractions from commercial chitin and their characterization by a combination of liquid-state and solid-state nuclear magnetic resonance spectroscopy. We show that the CO fraction with highest degree of polymerization (DP) became essentially insoluble after lyophilization. However, a fully soluble, fully acetylated fraction with a mean DP of ca. 7 was recovered and validated by showing its CERK1-dependent activity in Arabidopsis thaliana. In parallel, we developed a versatile root elicitation bioassay in the model legume Medicago truncatula, using a hydroponic culture system and the Phytophthora β-glucan elicitor as a control elicitor. We then showed that M. truncatula responded with high sensitivity to the CO elicitor, which caused the production of extracellular reactive oxygen species and the transient induction of a variety of defense-associated genes. In addition, the bioassay allowed detection of elicitor activity in culture filtrates of the oomycete Aphanomyces euteiches, opening the way to the analysis of recognition of this important legume root pathogen by M. truncatula.</p></div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23314495</PMID><DateCompleted><Year>2013</Year><Month>09</Month><Day>18</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-203X</ISSN><JournalIssue CitedMedium="Internet"><Volume>32</Volume><Issue>4</Issue><PubDate><Year>2013</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Plant cell reports</Title><ISOAbbreviation>Plant Cell Rep</ISOAbbreviation></Journal><ArticleTitle>An experimental system to study responses of Medicago truncatula roots to chitin oligomers of high degree of polymerization and other microbial elicitors.</ArticleTitle><Pagination><MedlinePgn>489-502</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00299-012-1380-3</ELocationID><Abstract><AbstractText Label="KEY MESSAGE" NlmCategory="CONCLUSIONS">A fully acetylated, soluble CO preparation of mean DP of ca. 7 was perceived with high sensitivity by M. truncatula in a newly designed versatile root elicitation assay. The root system of legume plants interacts with a large variety of microorganisms, either pathogenic or symbiotic. Understanding how legumes recognize and respond specifically to pathogen-associated or symbiotic signals requires the development of standardized bioassays using well-defined preparations of the corresponding signals. Here we describe the preparation of chitin oligosaccharide (CO) fractions from commercial chitin and their characterization by a combination of liquid-state and solid-state nuclear magnetic resonance spectroscopy. We show that the CO fraction with highest degree of polymerization (DP) became essentially insoluble after lyophilization. However, a fully soluble, fully acetylated fraction with a mean DP of ca. 7 was recovered and validated by showing its CERK1-dependent activity in Arabidopsis thaliana. In parallel, we developed a versatile root elicitation bioassay in the model legume Medicago truncatula, using a hydroponic culture system and the Phytophthora β-glucan elicitor as a control elicitor. We then showed that M. truncatula responded with high sensitivity to the CO elicitor, which caused the production of extracellular reactive oxygen species and the transient induction of a variety of defense-associated genes. In addition, the bioassay allowed detection of elicitor activity in culture filtrates of the oomycete Aphanomyces euteiches, opening the way to the analysis of recognition of this important legume root pathogen by M. truncatula.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Nars</LastName><ForeName>A</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Université de Toulouse, UPS, UMR5546, Laboratoire de Recherche en Sciences Végétales (LRSV), BP 42617, 31326, Castanet-Tolosan, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Rey</LastName><ForeName>T</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Lafitte</LastName><ForeName>C</ForeName><Initials>C</Initials></Author><Author ValidYN="Y"><LastName>Vergnes</LastName><ForeName>S</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Amatya</LastName><ForeName>S</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Jacquet</LastName><ForeName>C</ForeName><Initials>C</Initials></Author><Author ValidYN="Y"><LastName>Dumas</LastName><ForeName>B</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Thibaudeau</LastName><ForeName>C</ForeName><Initials>C</Initials></Author><Author ValidYN="Y"><LastName>Heux</LastName><ForeName>L</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Bottin</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Fliegmann</LastName><ForeName>J</ForeName><Initials>J</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2013</Year><Month>01</Month><Day>13</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Plant Cell Rep</MedlineTA><NlmUniqueID>9880970</NlmUniqueID><ISSNLinking>0721-7714</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D029681">Arabidopsis Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D017382">Reactive Oxygen Species</NameOfSubstance></Chemical><Chemical><RegistryNumber>1398-61-4</RegistryNumber><NameOfSubstance UI="D002686">Chitin</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 2.7.11.1</RegistryNumber><NameOfSubstance UI="C525882">CERK1 protein, Arabidopsis</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 2.7.11.1</RegistryNumber><NameOfSubstance UI="D017346">Protein-Serine-Threonine Kinases</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000107" MajorTopicYN="N">Acetylation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D044744" MajorTopicYN="N">Aphanomyces</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017360" MajorTopicYN="N">Arabidopsis</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D029681" MajorTopicYN="N">Arabidopsis Proteins</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002686" MajorTopicYN="N">Chitin</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018506" MajorTopicYN="N">Gene Expression Regulation, Plant</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009682" MajorTopicYN="N">Magnetic Resonance Spectroscopy</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D046913" MajorTopicYN="N">Medicago truncatula</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010838" MajorTopicYN="N">Phytophthora</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010935" MajorTopicYN="N">Plant Diseases</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D058105" MajorTopicYN="N">Polymerization</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017346" MajorTopicYN="N">Protein-Serine-Threonine Kinases</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017382" MajorTopicYN="N">Reactive Oxygen Species</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2012</Year><Month>11</Month><Day>05</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2012</Year><Month>12</Month><Day>12</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2012</Year><Month>12</Month><Day>06</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>1</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>1</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate 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