Free and conjugated benzoic acid in tobacco plants and cell cultures. Induced accumulation upon elicitation of defense responses and role as salicylic acid precursors.
Identifieur interne : 002722 ( Main/Exploration ); précédent : 002721; suivant : 002723Free and conjugated benzoic acid in tobacco plants and cell cultures. Induced accumulation upon elicitation of defense responses and role as salicylic acid precursors.
Auteurs : J. Chong [France] ; M A Pierrel ; R. Atanassova ; D. Werck-Reichhart ; B. Fritig ; P. SaindrenanSource :
- Plant physiology [ 0032-0889 ] ; 2001.
Descripteurs français
- KwdFr :
- MESH :
- composition chimique : Benzoates.
- cytologie : Tabac.
- effets des médicaments et des substances chimiques : Tabac.
- métabolisme : Acide salicylique, Benzoates, Feuilles de plante, Tabac.
- pharmacologie : Benzoates.
- Cellules cultivées, Cinétique.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Benzoates.
- chemical , metabolism : Benzoates, Salicylic Acid.
- chemical , pharmacology : Benzoates.
- cytology : Tobacco.
- drug effects : Tobacco.
- metabolism : Plant Leaves, Tobacco.
- Cells, Cultured, Kinetics.
Abstract
Salicylic acid (SA) is a key endogenous component of local and systemic disease resistance in plants. In this study, we investigated the role of benzoic acid (BA) as precursor of SA biosynthesis in tobacco (Nicotiana tabacum cv Samsun NN) plants undergoing a hypersensitive response following infection with tobacco mosaic virus or in tobacco cell suspensions elicited with beta-megaspermin, an elicitor from Phytophthora megasperma. We found a small pool of conjugated BA in healthy leaves and untreated cell suspensions of tobacco, whereas free BA levels were barely detectable. Infection of plants with tobacco mosaic virus or elicitation of cells led to a rapid de novo synthesis and accumulation of conjugated BA, whereas free BA was weakly induced. In presence of diphenylene iodonium, an inhibitor of superoxide anion formation, SA accumulation was abolished in elicited cells and much higher BA levels were concomitantly induced, mainly as a conjugated form. Furthermore, piperonylic acid, an inhibitor of cinnamate-4-hydroxylase was used as a powerful tool to redirect the metabolic flow from the main phenylpropanoid pathway into the SA biosynthetic branch. Under these conditions, in vivo labeling and radioisotope dilution experiments with [(14)C]trans-cinnamic acid as precursor clearly indicated that the free form of BA produced in elicited tobacco cells is not the major precursor of SA biosynthesis. The main conjugated form of BA accumulating after elicitation of tobacco cells was identified for the first time as benzoyl-glucose. Our data point to the likely role of conjugated forms of BA in SA biosynthesis.
DOI: 10.1104/pp.125.1.318
PubMed: 11154339
PubMed Central: PMC61012
Affiliations:
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Chong</name><affiliation wicri:level="4"><nlm:affiliation>Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, Université Louis Pasteur, 67084 Strasbourg cedex, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, Université Louis Pasteur, 67084 Strasbourg cedex</wicri:regionArea><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName><orgName type="university">Université Strasbourg 1</orgName></affiliation></author><author><name sortKey="Pierrel, M A" sort="Pierrel, M A" uniqKey="Pierrel M" first="M A" last="Pierrel">M A Pierrel</name></author><author><name sortKey="Atanassova, R" sort="Atanassova, R" uniqKey="Atanassova R" first="R" last="Atanassova">R. Atanassova</name></author><author><name sortKey="Werck Reichhart, D" sort="Werck Reichhart, D" uniqKey="Werck Reichhart D" first="D" last="Werck-Reichhart">D. Werck-Reichhart</name></author><author><name sortKey="Fritig, B" sort="Fritig, B" uniqKey="Fritig B" first="B" last="Fritig">B. Fritig</name></author><author><name sortKey="Saindrenan, P" sort="Saindrenan, P" uniqKey="Saindrenan P" first="P" last="Saindrenan">P. 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Chong</name><affiliation wicri:level="4"><nlm:affiliation>Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, Université Louis Pasteur, 67084 Strasbourg cedex, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, Université Louis Pasteur, 67084 Strasbourg cedex</wicri:regionArea><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName><orgName type="university">Université Strasbourg 1</orgName></affiliation></author><author><name sortKey="Pierrel, M A" sort="Pierrel, M A" uniqKey="Pierrel M" first="M A" last="Pierrel">M A Pierrel</name></author><author><name sortKey="Atanassova, R" sort="Atanassova, R" uniqKey="Atanassova R" first="R" last="Atanassova">R. Atanassova</name></author><author><name sortKey="Werck Reichhart, D" sort="Werck Reichhart, D" uniqKey="Werck Reichhart D" first="D" last="Werck-Reichhart">D. Werck-Reichhart</name></author><author><name sortKey="Fritig, B" sort="Fritig, B" uniqKey="Fritig B" first="B" last="Fritig">B. Fritig</name></author><author><name sortKey="Saindrenan, P" sort="Saindrenan, P" uniqKey="Saindrenan P" first="P" last="Saindrenan">P. Saindrenan</name></author></analytic><series><title level="j">Plant physiology</title><idno type="ISSN">0032-0889</idno><imprint><date when="2001" type="published">2001</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Benzoates (chemistry)</term><term>Benzoates (metabolism)</term><term>Benzoates (pharmacology)</term><term>Cells, Cultured (MeSH)</term><term>Kinetics (MeSH)</term><term>Plant Leaves (metabolism)</term><term>Salicylic Acid (metabolism)</term><term>Tobacco (cytology)</term><term>Tobacco (drug effects)</term><term>Tobacco (metabolism)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acide salicylique (métabolisme)</term><term>Benzoates (composition chimique)</term><term>Benzoates (métabolisme)</term><term>Benzoates (pharmacologie)</term><term>Cellules cultivées (MeSH)</term><term>Cinétique (MeSH)</term><term>Feuilles de plante (métabolisme)</term><term>Tabac (cytologie)</term><term>Tabac (effets des médicaments et des substances chimiques)</term><term>Tabac (métabolisme)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Benzoates</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Benzoates</term><term>Salicylic Acid</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Benzoates</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Benzoates</term></keywords><keywords scheme="MESH" qualifier="cytologie" xml:lang="fr"><term>Tabac</term></keywords><keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Tobacco</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Tobacco</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Tabac</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Leaves</term><term>Tobacco</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Acide salicylique</term><term>Benzoates</term><term>Feuilles de plante</term><term>Tabac</term></keywords><keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Benzoates</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Cells, Cultured</term><term>Kinetics</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Cellules cultivées</term><term>Cinétique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Salicylic acid (SA) is a key endogenous component of local and systemic disease resistance in plants. In this study, we investigated the role of benzoic acid (BA) as precursor of SA biosynthesis in tobacco (Nicotiana tabacum cv Samsun NN) plants undergoing a hypersensitive response following infection with tobacco mosaic virus or in tobacco cell suspensions elicited with beta-megaspermin, an elicitor from Phytophthora megasperma. We found a small pool of conjugated BA in healthy leaves and untreated cell suspensions of tobacco, whereas free BA levels were barely detectable. Infection of plants with tobacco mosaic virus or elicitation of cells led to a rapid de novo synthesis and accumulation of conjugated BA, whereas free BA was weakly induced. In presence of diphenylene iodonium, an inhibitor of superoxide anion formation, SA accumulation was abolished in elicited cells and much higher BA levels were concomitantly induced, mainly as a conjugated form. Furthermore, piperonylic acid, an inhibitor of cinnamate-4-hydroxylase was used as a powerful tool to redirect the metabolic flow from the main phenylpropanoid pathway into the SA biosynthetic branch. Under these conditions, in vivo labeling and radioisotope dilution experiments with [(14)C]trans-cinnamic acid as precursor clearly indicated that the free form of BA produced in elicited tobacco cells is not the major precursor of SA biosynthesis. The main conjugated form of BA accumulating after elicitation of tobacco cells was identified for the first time as benzoyl-glucose. Our data point to the likely role of conjugated forms of BA in SA biosynthesis.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">11154339</PMID><DateCompleted><Year>2003</Year><Month>12</Month><Day>15</Day></DateCompleted><DateRevised><Year>2019</Year><Month>05</Month><Day>14</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0032-0889</ISSN><JournalIssue CitedMedium="Print"><Volume>125</Volume><Issue>1</Issue><PubDate><Year>2001</Year><Month>Jan</Month></PubDate></JournalIssue><Title>Plant physiology</Title><ISOAbbreviation>Plant Physiol</ISOAbbreviation></Journal><ArticleTitle>Free and conjugated benzoic acid in tobacco plants and cell cultures. Induced accumulation upon elicitation of defense responses and role as salicylic acid precursors.</ArticleTitle><Pagination><MedlinePgn>318-28</MedlinePgn></Pagination><Abstract><AbstractText>Salicylic acid (SA) is a key endogenous component of local and systemic disease resistance in plants. In this study, we investigated the role of benzoic acid (BA) as precursor of SA biosynthesis in tobacco (Nicotiana tabacum cv Samsun NN) plants undergoing a hypersensitive response following infection with tobacco mosaic virus or in tobacco cell suspensions elicited with beta-megaspermin, an elicitor from Phytophthora megasperma. We found a small pool of conjugated BA in healthy leaves and untreated cell suspensions of tobacco, whereas free BA levels were barely detectable. Infection of plants with tobacco mosaic virus or elicitation of cells led to a rapid de novo synthesis and accumulation of conjugated BA, whereas free BA was weakly induced. In presence of diphenylene iodonium, an inhibitor of superoxide anion formation, SA accumulation was abolished in elicited cells and much higher BA levels were concomitantly induced, mainly as a conjugated form. Furthermore, piperonylic acid, an inhibitor of cinnamate-4-hydroxylase was used as a powerful tool to redirect the metabolic flow from the main phenylpropanoid pathway into the SA biosynthetic branch. Under these conditions, in vivo labeling and radioisotope dilution experiments with [(14)C]trans-cinnamic acid as precursor clearly indicated that the free form of BA produced in elicited tobacco cells is not the major precursor of SA biosynthesis. The main conjugated form of BA accumulating after elicitation of tobacco cells was identified for the first time as benzoyl-glucose. Our data point to the likely role of conjugated forms of BA in SA biosynthesis.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Chong</LastName><ForeName>J</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, Université Louis Pasteur, 67084 Strasbourg cedex, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Pierrel</LastName><ForeName>M A</ForeName><Initials>MA</Initials></Author><Author ValidYN="Y"><LastName>Atanassova</LastName><ForeName>R</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Werck-Reichhart</LastName><ForeName>D</ForeName><Initials>D</Initials></Author><Author ValidYN="Y"><LastName>Fritig</LastName><ForeName>B</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Saindrenan</LastName><ForeName>P</ForeName><Initials>P</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></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Physiol</MedlineTA><NlmUniqueID>0401224</NlmUniqueID><ISSNLinking>0032-0889</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D001565">Benzoates</NameOfSubstance></Chemical><Chemical><RegistryNumber>O414PZ4LPZ</RegistryNumber><NameOfSubstance UI="D020156">Salicylic Acid</NameOfSubstance></Chemical><Chemical><RegistryNumber>QX3V1NO0KH</RegistryNumber><NameOfSubstance UI="C005455">piperonylic acid</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001565" 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Atanassova</name><name sortKey="Fritig, B" sort="Fritig, B" uniqKey="Fritig B" first="B" last="Fritig">B. Fritig</name><name sortKey="Pierrel, M A" sort="Pierrel, M A" uniqKey="Pierrel M" first="M A" last="Pierrel">M A Pierrel</name><name sortKey="Saindrenan, P" sort="Saindrenan, P" uniqKey="Saindrenan P" first="P" last="Saindrenan">P. Saindrenan</name><name sortKey="Werck Reichhart, D" sort="Werck Reichhart, D" uniqKey="Werck Reichhart D" first="D" last="Werck-Reichhart">D. Werck-Reichhart</name></noCountry><country name="France"><region name="Grand Est"><name sortKey="Chong, J" sort="Chong, J" uniqKey="Chong J" first="J" last="Chong">J. Chong</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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