Chloride absorption in salt-sensitive Carrizo citrange and salt-tolerant Cleopatra mandarin citrus rootstocks is linked to water use.
Identifieur interne : 002C21 ( Main/Merge ); précédent : 002C20; suivant : 002C22Chloride absorption in salt-sensitive Carrizo citrange and salt-tolerant Cleopatra mandarin citrus rootstocks is linked to water use.
Auteurs : José Luís Moya [Espagne] ; Aurelio G Mez-Cadenas ; Eduardo Primo-Millo ; Manuel TalonSource :
- Journal of experimental botany [ 0022-0957 ] ; 2003.
English descriptors
- KwdEn :
- Adaptation, Physiological (drug effects), Biological Transport (drug effects), Chlorides (metabolism), Citrus (drug effects), Citrus (genetics), Citrus (physiology), Genotype, Hybridization, Genetic, Microscopy, Confocal, Plant Leaves (drug effects), Plant Leaves (physiology), Plant Roots (cytology), Plant Roots (drug effects), Plant Roots (physiology), Plant Shoots (drug effects), Plant Shoots (physiology), Plant Transpiration (drug effects), Sodium Chloride (pharmacology), Water (metabolism).
- MESH :
- chemical , metabolism : Chlorides, Water.
- cytology : Plant Roots.
- drug effects : Adaptation, Physiological, Biological Transport, Citrus, Plant Leaves, Plant Roots, Plant Shoots, Plant Transpiration.
- genetics : Citrus.
- chemical , pharmacology : Sodium Chloride.
- physiology : Citrus, Plant Leaves, Plant Roots, Plant Shoots.
- Genotype, Hybridization, Genetic, Microscopy, Confocal.
Abstract
In this work, seedlings of two citrus rootstocks, the salt-tolerant Cleopatra mandarin (Citrus reshni Hort. ex Tan.) and the salt-sensitive Carrizo citrange (Citrus sinensis [L.] Osb. x Poncirus trifoliata [L.] Raf.) were used to study the relationship between chloride and water uptake. The results indicated that net chloride uptake rates in both genotypes were alike and decreased linearly with the time of salinity exposure, although they were more rapidly reduced in the tolerant genotype. In each rootstock, chloride uptake rates paralleled the decreases in transpiration rates. When transpiration was modified, concomitant changes in leaf Cl(-) concentrations were observed. There was a high positive correlation between total chloride content per plant and total water absorbed. In addition, the data indicate that the tolerant genotype "excluded" more chloride, i.e. it absorbed lower amounts of chloride per volume of water. Cleopatra also possessed a less efficient root system for water uptake and a higher shoot-to-root ratio. The results show that, overall, chloride absorption is linked to water use and that further tolerance in Cleopatra is mostly conferred by superior root resistance to Cl(-) uptake. Therefore, it is proposed that chloride absorption and, hence, salt tolerance in citrus depends to a great extent upon water use.
PubMed: 12554725
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pubmed:12554725Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Chloride absorption in salt-sensitive Carrizo citrange and salt-tolerant Cleopatra mandarin citrus rootstocks is linked to water use.</title><author><name sortKey="Moya, Jose Luis" sort="Moya, Jose Luis" uniqKey="Moya J" first="José Luís" last="Moya">José Luís Moya</name><affiliation wicri:level="1"><nlm:affiliation>Departamento de Citricultura y Otros Frutales, Instituto Valenciano de Investigaciones Agrarias, Moncada E-46113, Valencia, Spain.</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Departamento de Citricultura y Otros Frutales, Instituto Valenciano de Investigaciones Agrarias, Moncada E-46113, Valencia</wicri:regionArea><wicri:noRegion>Valencia</wicri:noRegion></affiliation></author><author><name sortKey="G Mez Cadenas, Aurelio" sort="G Mez Cadenas, Aurelio" uniqKey="G Mez Cadenas A" first="Aurelio" last="G Mez-Cadenas">Aurelio G Mez-Cadenas</name></author><author><name sortKey="Primo Millo, Eduardo" sort="Primo Millo, Eduardo" uniqKey="Primo Millo E" first="Eduardo" last="Primo-Millo">Eduardo Primo-Millo</name></author><author><name sortKey="Talon, Manuel" sort="Talon, Manuel" uniqKey="Talon M" first="Manuel" last="Talon">Manuel Talon</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2003">2003</date><idno type="RBID">pubmed:12554725</idno><idno type="pmid">12554725</idno><idno type="wicri:Area/PubMed/Corpus">000E54</idno><idno type="wicri:Area/PubMed/Curation">000E54</idno><idno type="wicri:Area/PubMed/Checkpoint">000E54</idno><idno type="wicri:Area/Ncbi/Merge">000087</idno><idno type="wicri:Area/Ncbi/Curation">000087</idno><idno type="wicri:Area/Ncbi/Checkpoint">000087</idno><idno type="wicri:doubleKey">0022-0957:2003:Moya J:chloride:absorption:in</idno><idno type="wicri:Area/Main/Merge">002C21</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Chloride absorption in salt-sensitive Carrizo citrange and salt-tolerant Cleopatra mandarin citrus rootstocks is linked to water use.</title><author><name sortKey="Moya, Jose Luis" sort="Moya, Jose Luis" uniqKey="Moya J" first="José Luís" last="Moya">José Luís Moya</name><affiliation wicri:level="1"><nlm:affiliation>Departamento de Citricultura y Otros Frutales, Instituto Valenciano de Investigaciones Agrarias, Moncada E-46113, Valencia, Spain.</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Departamento de Citricultura y Otros Frutales, Instituto Valenciano de Investigaciones Agrarias, Moncada E-46113, Valencia</wicri:regionArea><wicri:noRegion>Valencia</wicri:noRegion></affiliation></author><author><name sortKey="G Mez Cadenas, Aurelio" sort="G Mez Cadenas, Aurelio" uniqKey="G Mez Cadenas A" first="Aurelio" last="G Mez-Cadenas">Aurelio G Mez-Cadenas</name></author><author><name sortKey="Primo Millo, Eduardo" sort="Primo Millo, Eduardo" uniqKey="Primo Millo E" first="Eduardo" last="Primo-Millo">Eduardo Primo-Millo</name></author><author><name sortKey="Talon, Manuel" sort="Talon, Manuel" uniqKey="Talon M" first="Manuel" last="Talon">Manuel Talon</name></author></analytic><series><title level="j">Journal of experimental botany</title><idno type="ISSN">0022-0957</idno><imprint><date when="2003" type="published">2003</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adaptation, Physiological (drug effects)</term><term>Biological Transport (drug effects)</term><term>Chlorides (metabolism)</term><term>Citrus (drug effects)</term><term>Citrus (genetics)</term><term>Citrus (physiology)</term><term>Genotype</term><term>Hybridization, Genetic</term><term>Microscopy, Confocal</term><term>Plant Leaves (drug effects)</term><term>Plant Leaves (physiology)</term><term>Plant Roots (cytology)</term><term>Plant Roots (drug effects)</term><term>Plant Roots (physiology)</term><term>Plant Shoots (drug effects)</term><term>Plant Shoots (physiology)</term><term>Plant Transpiration (drug effects)</term><term>Sodium Chloride (pharmacology)</term><term>Water (metabolism)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Chlorides</term><term>Water</term></keywords><keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Adaptation, Physiological</term><term>Biological Transport</term><term>Citrus</term><term>Plant Leaves</term><term>Plant Roots</term><term>Plant Shoots</term><term>Plant Transpiration</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Citrus</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Sodium Chloride</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Citrus</term><term>Plant Leaves</term><term>Plant Roots</term><term>Plant Shoots</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Genotype</term><term>Hybridization, Genetic</term><term>Microscopy, Confocal</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this work, seedlings of two citrus rootstocks, the salt-tolerant Cleopatra mandarin (Citrus reshni Hort. ex Tan.) and the salt-sensitive Carrizo citrange (Citrus sinensis [L.] Osb. x Poncirus trifoliata [L.] Raf.) were used to study the relationship between chloride and water uptake. The results indicated that net chloride uptake rates in both genotypes were alike and decreased linearly with the time of salinity exposure, although they were more rapidly reduced in the tolerant genotype. In each rootstock, chloride uptake rates paralleled the decreases in transpiration rates. When transpiration was modified, concomitant changes in leaf Cl(-) concentrations were observed. There was a high positive correlation between total chloride content per plant and total water absorbed. In addition, the data indicate that the tolerant genotype "excluded" more chloride, i.e. it absorbed lower amounts of chloride per volume of water. Cleopatra also possessed a less efficient root system for water uptake and a higher shoot-to-root ratio. The results show that, overall, chloride absorption is linked to water use and that further tolerance in Cleopatra is mostly conferred by superior root resistance to Cl(-) uptake. Therefore, it is proposed that chloride absorption and, hence, salt tolerance in citrus depends to a great extent upon water use.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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