Stomatal conductance and root-to-shoot signalling in chestnut saplings exposed to Phytophthora cinnamomi or partial soil drying.
Identifieur interne : 002266 ( Main/Exploration ); précédent : 002265; suivant : 002267Stomatal conductance and root-to-shoot signalling in chestnut saplings exposed to Phytophthora cinnamomi or partial soil drying.
Auteurs : Marion Maurel [France] ; Cécile Robin [France] ; Thierry Simonneau [France] ; Denis Loustau [France] ; Erwin Dreyer [France] ; Marie-Laure Desprez-Loustau [France]Source :
- Functional plant biology : FPB [ 1445-4416 ] ; 2004.
Abstract
The effects of root infection by Phytophthora cinnamomi on stomatal conductance in Castanea sativa L. saplings were investigated to determine the potential role of root-derived chemical signals. A split-root experiment was carried out, in which inoculation of the pathogen or drought was applied to the root systems in either one or both compartments. At the end of the experiment plant sap extracts were collected and their effects on stomatal conductance were determined by leaf bioassay. Inoculation or drought imposed in both compartments resulted in decreases in stomatal conductance (gs), transpiration rate, soil-to-leaf specific hydraulic conductance, leaf water potential, xylem [ABA] and root biomass, but not in the ratio of root-to-leaf mass in inoculated plants. Conversely, only gs and xylem [ABA] were affected in plants inoculated or droughted in one compartment, and no changes were detectable in leaf water potential and soil-to-leaf specific hydraulic conductance. The leaf bioassay showed that gs in chestnut was sensitive to ABA but not to Phytophthora elicitins. Stomatal conductance was reduced by some sap extracts, both from control and inoculated plants. Our results suggest the involvement of different signals, chemical and hydraulic, in regulating stomatal conductance of chestnut at different stages of stress.
DOI: 10.1071/FP03133
PubMed: 32688879
Affiliations:
- France
- Aquitaine, Grand Est, Languedoc-Roussillon, Lorraine (région), Nouvelle-Aquitaine, Occitanie (région administrative)
- Cestas, Montpellier, Seichamps, Villenave d'Ornon
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nuts="2">Aquitaine</region><settlement type="city">Villenave d'Ornon</settlement></placeName></affiliation></author><author><name sortKey="Robin, Cecile" sort="Robin, Cecile" uniqKey="Robin C" first="Cécile" last="Robin">Cécile Robin</name><affiliation wicri:level="3"><nlm:affiliation>UMR INRA-Université Bordeaux 1 BIOGECO, Équipe de Pathologie Forestière, Centre INRA de Bordeaux, Domaine de la Grande-Ferrade, BP81, 33883 Villenave d'Ornon Cedex, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR INRA-Université Bordeaux 1 BIOGECO, Équipe de Pathologie Forestière, Centre INRA de Bordeaux, Domaine de la Grande-Ferrade, BP81, 33883 Villenave d'Ornon Cedex</wicri:regionArea><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Villenave d'Ornon</settlement></placeName></affiliation></author><author><name sortKey="Simonneau, Thierry" sort="Simonneau, Thierry" uniqKey="Simonneau T" first="Thierry" last="Simonneau">Thierry Simonneau</name><affiliation wicri:level="3"><nlm:affiliation>INRA MONTPELLIER, Laboratoire d'Écophysiologie des Plantes Sous Stress Environnementaux, 2, place Viala, 34060 Montpellier Cedex 01, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>INRA MONTPELLIER, Laboratoire d'Écophysiologie des Plantes Sous Stress Environnementaux, 2, place Viala, 34060 Montpellier Cedex 01</wicri:regionArea><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Loustau, Denis" sort="Loustau, Denis" uniqKey="Loustau D" first="Denis" last="Loustau">Denis Loustau</name><affiliation wicri:level="3"><nlm:affiliation>INRA Bordeaux, Unité de Recherches Forestières, Équipe d'Écophysiologie, Pierroton, 33610 Cestas, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>INRA Bordeaux, Unité de Recherches Forestières, Équipe d'Écophysiologie, Pierroton, 33610 Cestas</wicri:regionArea><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Cestas</settlement></placeName></affiliation></author><author><name sortKey="Dreyer, Erwin" sort="Dreyer, Erwin" uniqKey="Dreyer E" first="Erwin" last="Dreyer">Erwin Dreyer</name><affiliation wicri:level="3"><nlm:affiliation>UMR INRA-Université Nancy I: Ecologie et Écophysiologie Forestières, Champenoux, 54280 Seichamps, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR INRA-Université Nancy I: Ecologie et Écophysiologie Forestières, Champenoux, 54280 Seichamps</wicri:regionArea><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region><settlement type="city">Seichamps</settlement></placeName></affiliation></author><author><name sortKey="Desprez Loustau, Marie Laure" sort="Desprez Loustau, Marie Laure" uniqKey="Desprez Loustau M" first="Marie-Laure" last="Desprez-Loustau">Marie-Laure Desprez-Loustau</name><affiliation wicri:level="3"><nlm:affiliation>UMR INRA-Université Bordeaux 1 BIOGECO, Équipe de Pathologie Forestière, Centre INRA de Bordeaux, Domaine de la Grande-Ferrade, BP81, 33883 Villenave d'Ornon Cedex, France. Corresponding author; email: loustau@bordeaux.inra.fr.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR INRA-Université Bordeaux 1 BIOGECO, Équipe de Pathologie Forestière, Centre INRA de Bordeaux, Domaine de la Grande-Ferrade, BP81, 33883 Villenave d'Ornon Cedex</wicri:regionArea><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Villenave d'Ornon</settlement></placeName></affiliation></author></analytic><series><title level="j">Functional plant biology : FPB</title><idno type="eISSN">1445-4416</idno><imprint><date when="2004" type="published">2004</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The effects of root infection by Phytophthora cinnamomi on stomatal conductance in Castanea sativa L. saplings were investigated to determine the potential role of root-derived chemical signals. A split-root experiment was carried out, in which inoculation of the pathogen or drought was applied to the root systems in either one or both compartments. At the end of the experiment plant sap extracts were collected and their effects on stomatal conductance were determined by leaf bioassay. Inoculation or drought imposed in both compartments resulted in decreases in stomatal conductance (g<sub>s</sub>), transpiration rate, soil-to-leaf specific hydraulic conductance, leaf water potential, xylem [ABA] and root biomass, but not in the ratio of root-to-leaf mass in inoculated plants. Conversely, only g<sub>s</sub> and xylem [ABA] were affected in plants inoculated or droughted in one compartment, and no changes were detectable in leaf water potential and soil-to-leaf specific hydraulic conductance. The leaf bioassay showed that g<sub>s</sub> in chestnut was sensitive to ABA but not to Phytophthora elicitins. Stomatal conductance was reduced by some sap extracts, both from control and inoculated plants. Our results suggest the involvement of different signals, chemical and hydraulic, in regulating stomatal conductance of chestnut at different stages of stress.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">32688879</PMID><DateRevised><Year>2020</Year><Month>07</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1445-4416</ISSN><JournalIssue CitedMedium="Internet"><Volume>31</Volume><Issue>1</Issue><PubDate><Year>2004</Year><Month>Feb</Month></PubDate></JournalIssue><Title>Functional plant biology : FPB</Title><ISOAbbreviation>Funct Plant Biol</ISOAbbreviation></Journal><ArticleTitle>Stomatal conductance and root-to-shoot signalling in chestnut saplings exposed to Phytophthora cinnamomi or partial soil drying.</ArticleTitle><Pagination><MedlinePgn>41-51</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1071/FP03133</ELocationID><Abstract><AbstractText>The effects of root infection by Phytophthora cinnamomi on stomatal conductance in Castanea sativa L. saplings were investigated to determine the potential role of root-derived chemical signals. A split-root experiment was carried out, in which inoculation of the pathogen or drought was applied to the root systems in either one or both compartments. At the end of the experiment plant sap extracts were collected and their effects on stomatal conductance were determined by leaf bioassay. Inoculation or drought imposed in both compartments resulted in decreases in stomatal conductance (g<sub>s</sub>), transpiration rate, soil-to-leaf specific hydraulic conductance, leaf water potential, xylem [ABA] and root biomass, but not in the ratio of root-to-leaf mass in inoculated plants. Conversely, only g<sub>s</sub> and xylem [ABA] were affected in plants inoculated or droughted in one compartment, and no changes were detectable in leaf water potential and soil-to-leaf specific hydraulic conductance. The leaf bioassay showed that g<sub>s</sub> in chestnut was sensitive to ABA but not to Phytophthora elicitins. Stomatal conductance was reduced by some sap extracts, both from control and inoculated plants. Our results suggest the involvement of different signals, chemical and hydraulic, in regulating stomatal conductance of chestnut at different stages of stress.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Maurel</LastName><ForeName>Marion</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>UMR INRA-Université Bordeaux 1 BIOGECO, Équipe de Pathologie Forestière, Centre INRA de Bordeaux, Domaine de la Grande-Ferrade, BP81, 33883 Villenave d'Ornon Cedex, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Robin</LastName><ForeName>Cécile</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>UMR INRA-Université Bordeaux 1 BIOGECO, Équipe de Pathologie Forestière, Centre INRA de Bordeaux, Domaine de la Grande-Ferrade, BP81, 33883 Villenave d'Ornon Cedex, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Simonneau</LastName><ForeName>Thierry</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>INRA MONTPELLIER, Laboratoire d'Écophysiologie des Plantes Sous Stress Environnementaux, 2, place Viala, 34060 Montpellier Cedex 01, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Loustau</LastName><ForeName>Denis</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>INRA Bordeaux, Unité de Recherches Forestières, Équipe d'Écophysiologie, Pierroton, 33610 Cestas, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Dreyer</LastName><ForeName>Erwin</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>UMR INRA-Université Nancy I: Ecologie et Écophysiologie Forestières, Champenoux, 54280 Seichamps, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Desprez-Loustau</LastName><ForeName>Marie-Laure</ForeName><Initials>ML</Initials><AffiliationInfo><Affiliation>UMR INRA-Université Bordeaux 1 BIOGECO, Équipe de Pathologie Forestière, Centre INRA de Bordeaux, Domaine de la Grande-Ferrade, BP81, 33883 Villenave d'Ornon Cedex, France. Corresponding author; email: loustau@bordeaux.inra.fr.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Australia</Country><MedlineTA>Funct Plant Biol</MedlineTA><NlmUniqueID>101154361</NlmUniqueID><ISSNLinking>1445-4416</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>7</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2004</Year><Month>2</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2004</Year><Month>2</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32688879</ArticleId><ArticleId IdType="pii">FP03133</ArticleId><ArticleId IdType="doi">10.1071/FP03133</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>France</li></country><region><li>Aquitaine</li><li>Grand Est</li><li>Languedoc-Roussillon</li><li>Lorraine (région)</li><li>Nouvelle-Aquitaine</li><li>Occitanie (région administrative)</li></region><settlement><li>Cestas</li><li>Montpellier</li><li>Seichamps</li><li>Villenave d'Ornon</li></settlement></list><tree><country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Maurel, Marion" sort="Maurel, Marion" uniqKey="Maurel M" first="Marion" last="Maurel">Marion Maurel</name></region><name sortKey="Desprez Loustau, Marie Laure" sort="Desprez Loustau, Marie Laure" uniqKey="Desprez Loustau M" first="Marie-Laure" last="Desprez-Loustau">Marie-Laure Desprez-Loustau</name><name sortKey="Dreyer, Erwin" sort="Dreyer, Erwin" uniqKey="Dreyer E" first="Erwin" last="Dreyer">Erwin Dreyer</name><name sortKey="Loustau, Denis" sort="Loustau, Denis" uniqKey="Loustau D" first="Denis" last="Loustau">Denis Loustau</name><name sortKey="Robin, Cecile" sort="Robin, Cecile" uniqKey="Robin C" first="Cécile" last="Robin">Cécile Robin</name><name sortKey="Simonneau, Thierry" sort="Simonneau, Thierry" uniqKey="Simonneau T" first="Thierry" last="Simonneau">Thierry Simonneau</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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