Involvement of abscisic acid and ethylene in the responses of citrus seedlings to salt shock
Identifieur interne : 003207 ( Main/Exploration ); précédent : 003206; suivant : 003208Involvement of abscisic acid and ethylene in the responses of citrus seedlings to salt shock
Auteurs : A. G Mez-Cadenas [Espagne] ; F. R. Tadeo [Espagne] ; E. Primo-Millo [Espagne] ; M. Talon [Espagne]Source :
- Physiologia Plantarum [ 0031-9317 ] ; 1998-08.
English descriptors
- KwdEn :
Abstract
The responses of salt‐sensitive citrus rootstocks to 200 mM NaCl were periodically determined on seedlings of citrange Carrizo (Citrus sinensis[L.] Osbeck ×Poncirus trifoliata[L.] Raf) during 30 days. The stressed seedlings adjusted osmotically, reduced stomatal conductance, increased proline content and ethylene production, and showed massive leaf abscission (92%). The salt shock also increased abscisic acid (ABA) and aminocyclopropane‐1‐carboxylic acid (ACC) in roots, xylem fluid and leaves, and in addition promoted Cl− accumulation. The pattern of change of ABA, ACC and proline followed a two‐phase response: an initial transient increase (10‐12 days) overlapping with a gradual and continuous accumulation. This biphasic response appears to be compatible with the proposal that the transitory hormonal rises are induced by the osmotic component of salinity, whereas the Cl− increase determines the subsequent accumulations. During the second phase, Cl− levels correlated with abscission in leaves. Production of leaf ethylene was also concomitant with the increase in the abscission rate. Salt‐induced abscission was either reduced with CoCl2 (52%) or inhibited with silver thiosulphate (14%). The results suggest that in salt‐stressed citrus, leaf abscission is induced by the chloride build‐up through a mechanism that stimulates leaf ACC synthesis and further conversion to ethylene.
Url:
DOI: 10.1034/j.1399-3054.1998.1030405.x
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000008
- to stream Istex, to step Curation: 000008
- to stream Istex, to step Checkpoint: 000C35
- to stream Main, to step Merge: 003443
- to stream Main, to step Curation: 003207
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Involvement of abscisic acid and ethylene in the responses of citrus seedlings to salt shock</title><author><name sortKey="G Mez Adenas, A" sort="G Mez Adenas, A" uniqKey="G Mez Adenas A" first="A." last="G Mez-Cadenas">A. G Mez-Cadenas</name></author><author><name sortKey="Tadeo, F R" sort="Tadeo, F R" uniqKey="Tadeo F" first="F. R." last="Tadeo">F. R. Tadeo</name></author><author><name sortKey="Primo Illo, E" sort="Primo Illo, E" uniqKey="Primo Illo E" first="E." last="Primo-Millo">E. Primo-Millo</name></author><author><name sortKey="Talon, M" sort="Talon, M" uniqKey="Talon M" first="M." last="Talon">M. Talon</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:CECD1D183A7BF7CEA0E5646E42F30919C8FDC26A</idno><date when="1998" year="1998">1998</date><idno type="doi">10.1034/j.1399-3054.1998.1030405.x</idno><idno type="url">https://api.istex.fr/document/CECD1D183A7BF7CEA0E5646E42F30919C8FDC26A/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000008</idno><idno type="wicri:Area/Istex/Curation">000008</idno><idno type="wicri:Area/Istex/Checkpoint">000C35</idno><idno type="wicri:doubleKey">0031-9317:1998:G Mez Adenas A:involvement:of:abscisic</idno><idno type="wicri:Area/Main/Merge">003443</idno><idno type="wicri:Area/Main/Curation">003207</idno><idno type="wicri:Area/Main/Exploration">003207</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Involvement of abscisic acid and ethylene in the responses of citrus seedlings to salt shock</title><author><name sortKey="G Mez Adenas, A" sort="G Mez Adenas, A" uniqKey="G Mez Adenas A" first="A." last="G Mez-Cadenas">A. G Mez-Cadenas</name><affiliation wicri:level="1"><country xml:lang="fr">Espagne</country><wicri:regionArea>A. Gómez‐Cadenas, F. R. Tadeo, E. Primo‐Millo and M. Talon (corresponding author, e‐mail mtalon@ivia.es), Dept of Citriculture, Instituto Valenciano de Investigaciones Agrarias, Moncada E‐46113, Valencia</wicri:regionArea><wicri:noRegion>Valencia</wicri:noRegion></affiliation></author><author><name sortKey="Tadeo, F R" sort="Tadeo, F R" uniqKey="Tadeo F" first="F. R." last="Tadeo">F. R. Tadeo</name><affiliation wicri:level="1"><country xml:lang="fr">Espagne</country><wicri:regionArea>A. Gómez‐Cadenas, F. R. Tadeo, E. Primo‐Millo and M. Talon (corresponding author, e‐mail mtalon@ivia.es), Dept of Citriculture, Instituto Valenciano de Investigaciones Agrarias, Moncada E‐46113, Valencia</wicri:regionArea><wicri:noRegion>Valencia</wicri:noRegion></affiliation></author><author><name sortKey="Primo Illo, E" sort="Primo Illo, E" uniqKey="Primo Illo E" first="E." last="Primo-Millo">E. Primo-Millo</name><affiliation wicri:level="1"><country xml:lang="fr">Espagne</country><wicri:regionArea>A. Gómez‐Cadenas, F. R. Tadeo, E. Primo‐Millo and M. Talon (corresponding author, e‐mail mtalon@ivia.es), Dept of Citriculture, Instituto Valenciano de Investigaciones Agrarias, Moncada E‐46113, Valencia</wicri:regionArea><wicri:noRegion>Valencia</wicri:noRegion></affiliation></author><author><name sortKey="Talon, M" sort="Talon, M" uniqKey="Talon M" first="M." last="Talon">M. Talon</name><affiliation wicri:level="1"><country xml:lang="fr">Espagne</country><wicri:regionArea>A. Gómez‐Cadenas, F. R. Tadeo, E. Primo‐Millo and M. Talon (corresponding author, e‐mail mtalon@ivia.es), Dept of Citriculture, Instituto Valenciano de Investigaciones Agrarias, Moncada E‐46113, Valencia</wicri:regionArea><wicri:noRegion>Valencia</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Physiologia Plantarum</title><idno type="ISSN">0031-9317</idno><idno type="eISSN">1399-3054</idno><imprint><publisher>Munksgaard International Publishers</publisher><pubPlace>Copenhagen</pubPlace><date type="published" when="1998-08">1998-08</date><biblScope unit="volume">103</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="475">475</biblScope><biblScope unit="page" to="484">484</biblScope></imprint><idno type="ISSN">0031-9317</idno></series><idno type="istex">CECD1D183A7BF7CEA0E5646E42F30919C8FDC26A</idno><idno type="DOI">10.1034/j.1399-3054.1998.1030405.x</idno><idno type="ArticleID">PPL1030405</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0031-9317</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Abscisic acid</term><term>Citrus sinensis[L.] Osbeck ×Poncirus trifoliata[L.] Raf</term><term>aminocyclopropane‐1‐carboxylic acid</term><term>citrange Carrizo</term><term>ethylene</term><term>leaf abscission</term><term>rootstocks</term><term>salinity</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The responses of salt‐sensitive citrus rootstocks to 200 mM NaCl were periodically determined on seedlings of citrange Carrizo (Citrus sinensis[L.] Osbeck ×Poncirus trifoliata[L.] Raf) during 30 days. The stressed seedlings adjusted osmotically, reduced stomatal conductance, increased proline content and ethylene production, and showed massive leaf abscission (92%). The salt shock also increased abscisic acid (ABA) and aminocyclopropane‐1‐carboxylic acid (ACC) in roots, xylem fluid and leaves, and in addition promoted Cl− accumulation. The pattern of change of ABA, ACC and proline followed a two‐phase response: an initial transient increase (10‐12 days) overlapping with a gradual and continuous accumulation. This biphasic response appears to be compatible with the proposal that the transitory hormonal rises are induced by the osmotic component of salinity, whereas the Cl− increase determines the subsequent accumulations. During the second phase, Cl− levels correlated with abscission in leaves. Production of leaf ethylene was also concomitant with the increase in the abscission rate. Salt‐induced abscission was either reduced with CoCl2 (52%) or inhibited with silver thiosulphate (14%). The results suggest that in salt‐stressed citrus, leaf abscission is induced by the chloride build‐up through a mechanism that stimulates leaf ACC synthesis and further conversion to ethylene.</div></front></TEI><affiliations><list><country><li>Espagne</li></country></list><tree><country name="Espagne"><noRegion><name sortKey="G Mez Adenas, A" sort="G Mez Adenas, A" uniqKey="G Mez Adenas A" first="A." last="G Mez-Cadenas">A. G Mez-Cadenas</name></noRegion><name sortKey="Primo Illo, E" sort="Primo Illo, E" uniqKey="Primo Illo E" first="E." last="Primo-Millo">E. Primo-Millo</name><name sortKey="Tadeo, F R" sort="Tadeo, F R" uniqKey="Tadeo F" first="F. R." last="Tadeo">F. R. Tadeo</name><name sortKey="Talon, M" sort="Talon, M" uniqKey="Talon M" first="M." last="Talon">M. Talon</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Bois/explor/OrangerV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 003207 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 003207 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Bois
|area= OrangerV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:CECD1D183A7BF7CEA0E5646E42F30919C8FDC26A
|texte= Involvement of abscisic acid and ethylene in the responses of citrus seedlings to salt shock
}}
| This area was generated with Dilib version V0.6.25. |  |