OrangerV1, PascalFrancis, Corpus, bibRecord, 000A05

Morphological factors determining salt tolerance in citrus seedlings : the shoot to root ratio modulates passive root uptake of chloride ions and their accumulation in leaves

Identifieur interne : 000A05 ( PascalFrancis/Corpus ); précédent : 000A04; suivant : 000A06

Morphological factors determining salt tolerance in citrus seedlings : the shoot to root ratio modulates passive root uptake of chloride ions and their accumulation in leaves

Auteurs : J. L. Moya ; E. Primo-Millo ; M. Talon

Source :

Plant, cell and environment [ 0140-7791 ] ; 1999.

RBID : Pascal:99-0551132

Descripteurs français

Pascal (Inist)
- Résistance sel, Morphologie, Feuille végétal, Stade juvénile plante, Absorption, Transport passif, Xylème, Sève, Accumulation biologique, Sodium Chlorure, Racine, Surface foliaire, Répartition spatiale, Citrus reshni, Citrus sinensis Poncirus trifoliata.

English descriptors

KwdEn :
- Absorption, Biological accumulation, Leaf area, Morphology, Passive transport, Plant juvenile growth stage, Plant leaf, Root, Salt resistance, Sap, Sodium Chlorides, Spatial distribution, Xylem.

Abstract

The results presented in this work were obtained with two citrus genotypes, the chloride-tolerant Cleopatra mandarin (Citrus reshni Hort. ex Tan.) and the chloride-sensitive Carrizo citrange [Citrus sinensis (L.) Osb. × Poncirus trifoliata (L.) Raf.]. The data show that chloride uptake under salinization is driven by passive forces. In both species, net rates of chloride root uptake increased linearly, without saturation, with the increase of external NaCI concentrations (30-240 mol m^-3). Uptake rates, on a μg g root dry weight^-1 h^-1 basis, in Cleopatra and Carrizo decreased (from 38 to 21) and increased (from 21 to 35), respectively, with the increase (about three-fold) of the shoot to root ratio. With the appropriate shoot to root ratio in each genotype, it was demonstrated that at identical external doses of NaCI, Cl^- uptake rates and Cl^- xylem concentrations in the two species were very similar. Root pruning and defoliation showed that the amount of chloride taken by the plant was a function of the size of the root system, whereas leaf chloride concentration, the parameter responsible for salt damage, was dependent upon leaf biomass. Measurements of water transpiration suggested that chloride root uptake and leaf accumulation might be linked to water absorption and transpiration rates, respectively. The data indicate that plant morphology is a crucial factor determining salt-tolerance in citrus.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0140-7791`
A02	`01`			`@0 PLCEDV`
A03		`1`		`@0 Plant cell environ.`
A05				`@2 22`
A06				`@2 11`
A08	`01`	`1`	`ENG`	`@1 Morphological factors determining salt tolerance in citrus seedlings : the shoot to root ratio modulates passive root uptake of chloride ions and their accumulation in leaves`
A11	`01`	`1`		`@1 MOYA (J. L.)`
A11	`02`	`1`		`@1 PRIMO-MILLO (E.)`
A11	`03`	`1`		`@1 TALON (M.)`
A14	`01`			`@1 Departamento de Citricultura y Otros Frutales, Instituto Valenciano de Investigaciones Agrarias, Moncada @2 46113-, Valencia @3 ESP @Z 1 aut. @Z 2 aut. @Z 3 aut.`
A20				`@1 1425-1433`
A21				`@1 1999`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 17987 @5 354000080507680090`
A44				`@0 0000 @1 © 1999 INIST-CNRS. All rights reserved.`
A45				`@0 29 ref.`
A47	`01`	`1`		`@0 99-0551132`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Plant, cell and environment`
A66	`01`			`@0 GBR`
C01	`01`		`ENG`	@0 The results presented in this work were obtained with two citrus genotypes, the chloride-tolerant Cleopatra mandarin (Citrus reshni Hort. ex Tan.) and the chloride-sensitive Carrizo citrange [Citrus sinensis (L.) Osb. × Poncirus trifoliata (L.) Raf.]. The data show that chloride uptake under salinization is driven by passive forces. In both species, net rates of chloride root uptake increased linearly, without saturation, with the increase of external NaCI concentrations (30-240 mol m^-3). Uptake rates, on a μg g root dry weight^-1 h^-1 basis, in Cleopatra and Carrizo decreased (from 38 to 21) and increased (from 21 to 35), respectively, with the increase (about three-fold) of the shoot to root ratio. With the appropriate shoot to root ratio in each genotype, it was demonstrated that at identical external doses of NaCI, Cl^- uptake rates and Cl^- xylem concentrations in the two species were very similar. Root pruning and defoliation showed that the amount of chloride taken by the plant was a function of the size of the root system, whereas leaf chloride concentration, the parameter responsible for salt damage, was dependent upon leaf biomass. Measurements of water transpiration suggested that chloride root uptake and leaf accumulation might be linked to water absorption and transpiration rates, respectively. The data indicate that plant morphology is a crucial factor determining salt-tolerance in citrus.
C02	`01`	`X`		`@0 002A32E05C`
C03	`01`	`X`	`FRE`	`@0 Résistance sel @5 01`
C03	`01`	`X`	`ENG`	`@0 Salt resistance @5 01`
C03	`01`	`X`	`SPA`	`@0 Resistencia sal @5 01`
C03	`02`	`X`	`FRE`	`@0 Morphologie @5 02`
C03	`02`	`X`	`ENG`	`@0 Morphology @5 02`
C03	`02`	`X`	`SPA`	`@0 Morfología @5 02`
C03	`03`	`X`	`FRE`	`@0 Feuille végétal @5 03`
C03	`03`	`X`	`ENG`	`@0 Plant leaf @5 03`
C03	`03`	`X`	`SPA`	`@0 Hoja vegetal @5 03`
C03	`04`	`X`	`FRE`	`@0 Stade juvénile plante @5 04`
C03	`04`	`X`	`ENG`	`@0 Plant juvenile growth stage @5 04`
C03	`04`	`X`	`SPA`	`@0 Estado juvenil planta @5 04`
C03	`05`	`X`	`FRE`	`@0 Absorption @5 05`
C03	`05`	`X`	`ENG`	`@0 Absorption @5 05`
C03	`05`	`X`	`SPA`	`@0 Absorción @5 05`
C03	`06`	`X`	`FRE`	`@0 Transport passif @5 06`
C03	`06`	`X`	`ENG`	`@0 Passive transport @5 06`
C03	`06`	`X`	`SPA`	`@0 Transporte pasivo @5 06`
C03	`07`	`X`	`FRE`	`@0 Xylème @5 07`
C03	`07`	`X`	`ENG`	`@0 Xylem @5 07`
C03	`07`	`X`	`SPA`	`@0 Xilema @5 07`
C03	`08`	`X`	`FRE`	`@0 Sève @5 08`
C03	`08`	`X`	`ENG`	`@0 Sap @5 08`
C03	`08`	`X`	`SPA`	`@0 Savia @5 08`
C03	`09`	`X`	`FRE`	`@0 Accumulation biologique @5 09`
C03	`09`	`X`	`ENG`	`@0 Biological accumulation @5 09`
C03	`09`	`X`	`SPA`	`@0 Acumulación biológica @5 09`
C03	`10`	`X`	`FRE`	`@0 Sodium Chlorure @2 NC @2 NA @5 15`
C03	`10`	`X`	`ENG`	`@0 Sodium Chlorides @2 NC @2 NA @5 15`
C03	`10`	`X`	`SPA`	`@0 Sodio Cloruro @2 NC @2 NA @5 15`
C03	`11`	`X`	`FRE`	`@0 Racine @5 33`
C03	`11`	`X`	`ENG`	`@0 Root @5 33`
C03	`11`	`X`	`SPA`	`@0 Raíz @5 33`
C03	`12`	`X`	`FRE`	`@0 Surface foliaire @5 34`
C03	`12`	`X`	`ENG`	`@0 Leaf area @5 34`
C03	`12`	`X`	`SPA`	`@0 Superficie foliar @5 34`
C03	`13`	`X`	`FRE`	`@0 Répartition spatiale @5 35`
C03	`13`	`X`	`ENG`	`@0 Spatial distribution @5 35`
C03	`13`	`X`	`SPA`	`@0 Distribución espacial @5 35`
C03	`14`	`X`	`FRE`	`@0 Citrus reshni @2 NS @4 INC @5 75`
C03	`15`	`X`	`FRE`	`@0 Citrus sinensis Poncirus trifoliata @2 NS @4 INC @5 77`
C07	`01`	`X`	`FRE`	`@0 Agrume @5 40`
C07	`01`	`X`	`ENG`	`@0 Citrus fruit @5 40`
C07	`01`	`X`	`SPA`	`@0 Agrios @5 40`
C07	`02`	`X`	`FRE`	`@0 Porte greffe @5 41`
C07	`02`	`X`	`ENG`	`@0 Rootstock @5 41`
C07	`02`	`X`	`SPA`	`@0 Portainjerto @5 41`
C07	`03`	`X`	`FRE`	`@0 Rutaceae @2 NS @5 46`
C07	`03`	`X`	`ENG`	`@0 Rutaceae @2 NS @5 46`
C07	`03`	`X`	`SPA`	`@0 Rutaceae @2 NS @5 46`
C07	`04`	`X`	`FRE`	`@0 Dicotyledones @2 NS`
C07	`04`	`X`	`ENG`	`@0 Dicotyledones @2 NS`
C07	`04`	`X`	`SPA`	`@0 Dicotyledones @2 NS`
C07	`05`	`X`	`FRE`	`@0 Angiospermae @2 NS`
C07	`05`	`X`	`ENG`	`@0 Angiospermae @2 NS`
C07	`05`	`X`	`SPA`	`@0 Angiospermae @2 NS`
C07	`06`	`X`	`FRE`	`@0 Spermatophyta @2 NS`
C07	`06`	`X`	`ENG`	`@0 Spermatophyta @2 NS`
C07	`06`	`X`	`SPA`	`@0 Spermatophyta @2 NS`
N21				`@1 355`

Format Inist (serveur)

NO :	PASCAL 99-0551132 INIST
ET :	Morphological factors determining salt tolerance in citrus seedlings : the shoot to root ratio modulates passive root uptake of chloride ions and their accumulation in leaves
AU :	MOYA (J. L.); PRIMO-MILLO (E.); TALON (M.)
AF :	Departamento de Citricultura y Otros Frutales, Instituto Valenciano de Investigaciones Agrarias, Moncada/46113-, Valencia/Espagne (1 aut., 2 aut., 3 aut.)
DT :	Publication en série; Niveau analytique
SO :	Plant, cell and environment; ISSN 0140-7791; Coden PLCEDV; Royaume-Uni; Da. 1999; Vol. 22; No. 11; Pp. 1425-1433; Bibl. 29 ref.
LA :	Anglais
EA :	The results presented in this work were obtained with two citrus genotypes, the chloride-tolerant Cleopatra mandarin (Citrus reshni Hort. ex Tan.) and the chloride-sensitive Carrizo citrange [Citrus sinensis (L.) Osb. × Poncirus trifoliata (L.) Raf.]. The data show that chloride uptake under salinization is driven by passive forces. In both species, net rates of chloride root uptake increased linearly, without saturation, with the increase of external NaCI concentrations (30-240 mol m^-3). Uptake rates, on a μg g root dry weight^-1 h^-1 basis, in Cleopatra and Carrizo decreased (from 38 to 21) and increased (from 21 to 35), respectively, with the increase (about three-fold) of the shoot to root ratio. With the appropriate shoot to root ratio in each genotype, it was demonstrated that at identical external doses of NaCI, Cl^- uptake rates and Cl^- xylem concentrations in the two species were very similar. Root pruning and defoliation showed that the amount of chloride taken by the plant was a function of the size of the root system, whereas leaf chloride concentration, the parameter responsible for salt damage, was dependent upon leaf biomass. Measurements of water transpiration suggested that chloride root uptake and leaf accumulation might be linked to water absorption and transpiration rates, respectively. The data indicate that plant morphology is a crucial factor determining salt-tolerance in citrus.
CC :	002A32E05C
FD :	Résistance sel; Morphologie; Feuille végétal; Stade juvénile plante; Absorption; Transport passif; Xylème; Sève; Accumulation biologique; Sodium Chlorure; Racine; Surface foliaire; Répartition spatiale; Citrus reshni; Citrus sinensis Poncirus trifoliata
FG :	Agrume; Porte greffe; Rutaceae; Dicotyledones; Angiospermae; Spermatophyta
ED :	Salt resistance; Morphology; Plant leaf; Plant juvenile growth stage; Absorption; Passive transport; Xylem; Sap; Biological accumulation; Sodium Chlorides; Root; Leaf area; Spatial distribution
EG :	Citrus fruit; Rootstock; Rutaceae; Dicotyledones; Angiospermae; Spermatophyta
SD :	Resistencia sal; Morfología; Hoja vegetal; Estado juvenil planta; Absorción; Transporte pasivo; Xilema; Savia; Acumulación biológica; Sodio Cloruro; Raíz; Superficie foliar; Distribución espacial
LO :	INIST-17987.354000080507680090
ID :	99-0551132

Links to Exploration step

Pascal:99-0551132

Le document en format XML

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<term>Passive transport</term>
<term>Plant juvenile growth stage</term>
<term>Plant leaf</term>
<term>Root</term>
<term>Salt resistance</term>
<term>Sap</term>
<term>Sodium Chlorides</term>
<term>Spatial distribution</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Résistance sel</term>
<term>Morphologie</term>
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<term>Absorption</term>
<term>Transport passif</term>
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<term>Sève</term>
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<term>Sodium Chlorure</term>
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<term>Surface foliaire</term>
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<front><div type="abstract" xml:lang="en">The results presented in this work were obtained with two citrus genotypes, the chloride-tolerant Cleopatra mandarin (Citrus reshni Hort. ex Tan.) and the chloride-sensitive Carrizo citrange [Citrus sinensis (L.) Osb. × Poncirus trifoliata (L.) Raf.]. The data show that chloride uptake under salinization is driven by passive forces. In both species, net rates of chloride root uptake increased linearly, without saturation, with the increase of external NaCI concentrations (30-240 mol m<sup>-3</sup>
). Uptake rates, on a μg g root dry weight<sup>-1</sup>
 h<sup>-1</sup>
 basis, in Cleopatra and Carrizo decreased (from 38 to 21) and increased (from 21 to 35), respectively, with the increase (about three-fold) of the shoot to root ratio. With the appropriate shoot to root ratio in each genotype, it was demonstrated that at identical external doses of NaCI, Cl<sup>-</sup>
 uptake rates and Cl<sup>-</sup>
 xylem concentrations in the two species were very similar. Root pruning and defoliation showed that the amount of chloride taken by the plant was a function of the size of the root system, whereas leaf chloride concentration, the parameter responsible for salt damage, was dependent upon leaf biomass. Measurements of water transpiration suggested that chloride root uptake and leaf accumulation might be linked to water absorption and transpiration rates, respectively. The data indicate that plant morphology is a crucial factor determining salt-tolerance in citrus.</div>
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<fC01 i1="01" l="ENG"><s0>The results presented in this work were obtained with two citrus genotypes, the chloride-tolerant Cleopatra mandarin (Citrus reshni Hort. ex Tan.) and the chloride-sensitive Carrizo citrange [Citrus sinensis (L.) Osb. × Poncirus trifoliata (L.) Raf.]. The data show that chloride uptake under salinization is driven by passive forces. In both species, net rates of chloride root uptake increased linearly, without saturation, with the increase of external NaCI concentrations (30-240 mol m<sup>-3</sup>
). Uptake rates, on a μg g root dry weight<sup>-1</sup>
 h<sup>-1</sup>
 basis, in Cleopatra and Carrizo decreased (from 38 to 21) and increased (from 21 to 35), respectively, with the increase (about three-fold) of the shoot to root ratio. With the appropriate shoot to root ratio in each genotype, it was demonstrated that at identical external doses of NaCI, Cl<sup>-</sup>
 uptake rates and Cl<sup>-</sup>
 xylem concentrations in the two species were very similar. Root pruning and defoliation showed that the amount of chloride taken by the plant was a function of the size of the root system, whereas leaf chloride concentration, the parameter responsible for salt damage, was dependent upon leaf biomass. Measurements of water transpiration suggested that chloride root uptake and leaf accumulation might be linked to water absorption and transpiration rates, respectively. The data indicate that plant morphology is a crucial factor determining salt-tolerance in citrus.</s0>
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<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Estado juvenil planta</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Absorption</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Absorption</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Absorción</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Transport passif</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Passive transport</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Transporte pasivo</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Xylème</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Xylem</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Xilema</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Sève</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Sap</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Savia</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Accumulation biologique</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Biological accumulation</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Acumulación biológica</s0>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Sodium Chlorure</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Sodium Chlorides</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Sodio Cloruro</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Racine</s0>
<s5>33</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Root</s0>
<s5>33</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Raíz</s0>
<s5>33</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Surface foliaire</s0>
<s5>34</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>Leaf area</s0>
<s5>34</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>Superficie foliar</s0>
<s5>34</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Répartition spatiale</s0>
<s5>35</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Spatial distribution</s0>
<s5>35</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Distribución espacial</s0>
<s5>35</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Citrus reshni</s0>
<s2>NS</s2>
<s4>INC</s4>
<s5>75</s5>
</fC03>
<fC03 i1="15" i2="X" l="FRE"><s0>Citrus sinensis  Poncirus trifoliata</s0>
<s2>NS</s2>
<s4>INC</s4>
<s5>77</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Agrume</s0>
<s5>40</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Citrus fruit</s0>
<s5>40</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Agrios</s0>
<s5>40</s5>
</fC07>
<fC07 i1="02" i2="X" l="FRE"><s0>Porte greffe</s0>
<s5>41</s5>
</fC07>
<fC07 i1="02" i2="X" l="ENG"><s0>Rootstock</s0>
<s5>41</s5>
</fC07>
<fC07 i1="02" i2="X" l="SPA"><s0>Portainjerto</s0>
<s5>41</s5>
</fC07>
<fC07 i1="03" i2="X" l="FRE"><s0>Rutaceae</s0>
<s2>NS</s2>
<s5>46</s5>
</fC07>
<fC07 i1="03" i2="X" l="ENG"><s0>Rutaceae</s0>
<s2>NS</s2>
<s5>46</s5>
</fC07>
<fC07 i1="03" i2="X" l="SPA"><s0>Rutaceae</s0>
<s2>NS</s2>
<s5>46</s5>
</fC07>
<fC07 i1="04" i2="X" l="FRE"><s0>Dicotyledones</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="04" i2="X" l="ENG"><s0>Dicotyledones</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="04" i2="X" l="SPA"><s0>Dicotyledones</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="05" i2="X" l="FRE"><s0>Angiospermae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="05" i2="X" l="ENG"><s0>Angiospermae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="05" i2="X" l="SPA"><s0>Angiospermae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="06" i2="X" l="FRE"><s0>Spermatophyta</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="06" i2="X" l="ENG"><s0>Spermatophyta</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="06" i2="X" l="SPA"><s0>Spermatophyta</s0>
<s2>NS</s2>
</fC07>
<fN21><s1>355</s1>
</fN21>
</pA>
</standard>
<server><NO>PASCAL 99-0551132 INIST</NO>
<ET>Morphological factors determining salt tolerance in citrus seedlings : the shoot to root ratio modulates passive root uptake of chloride ions and their accumulation in leaves</ET>
<AU>MOYA (J. L.); PRIMO-MILLO (E.); TALON (M.)</AU>
<AF>Departamento de Citricultura y Otros Frutales, Instituto Valenciano de Investigaciones Agrarias, Moncada/46113-, Valencia/Espagne (1 aut., 2 aut., 3 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Plant, cell and environment; ISSN 0140-7791; Coden PLCEDV; Royaume-Uni; Da. 1999; Vol. 22; No. 11; Pp. 1425-1433; Bibl. 29 ref.</SO>
<LA>Anglais</LA>
<EA>The results presented in this work were obtained with two citrus genotypes, the chloride-tolerant Cleopatra mandarin (Citrus reshni Hort. ex Tan.) and the chloride-sensitive Carrizo citrange [Citrus sinensis (L.) Osb. × Poncirus trifoliata (L.) Raf.]. The data show that chloride uptake under salinization is driven by passive forces. In both species, net rates of chloride root uptake increased linearly, without saturation, with the increase of external NaCI concentrations (30-240 mol m<sup>-3</sup>
). Uptake rates, on a μg g root dry weight<sup>-1</sup>
 h<sup>-1</sup>
 basis, in Cleopatra and Carrizo decreased (from 38 to 21) and increased (from 21 to 35), respectively, with the increase (about three-fold) of the shoot to root ratio. With the appropriate shoot to root ratio in each genotype, it was demonstrated that at identical external doses of NaCI, Cl<sup>-</sup>
 uptake rates and Cl<sup>-</sup>
 xylem concentrations in the two species were very similar. Root pruning and defoliation showed that the amount of chloride taken by the plant was a function of the size of the root system, whereas leaf chloride concentration, the parameter responsible for salt damage, was dependent upon leaf biomass. Measurements of water transpiration suggested that chloride root uptake and leaf accumulation might be linked to water absorption and transpiration rates, respectively. The data indicate that plant morphology is a crucial factor determining salt-tolerance in citrus.</EA>
<CC>002A32E05C</CC>
<FD>Résistance sel; Morphologie; Feuille végétal; Stade juvénile plante; Absorption; Transport passif; Xylème; Sève; Accumulation biologique; Sodium Chlorure; Racine; Surface foliaire; Répartition spatiale; Citrus reshni; Citrus sinensis  Poncirus trifoliata</FD>
<FG>Agrume; Porte greffe; Rutaceae; Dicotyledones; Angiospermae; Spermatophyta</FG>
<ED>Salt resistance; Morphology; Plant leaf; Plant juvenile growth stage; Absorption; Passive transport; Xylem; Sap; Biological accumulation; Sodium Chlorides; Root; Leaf area; Spatial distribution</ED>
<EG>Citrus fruit; Rootstock; Rutaceae; Dicotyledones; Angiospermae; Spermatophyta</EG>
<SD>Resistencia sal; Morfología; Hoja vegetal; Estado juvenil planta; Absorción; Transporte pasivo; Xilema; Savia; Acumulación biológica; Sodio Cloruro; Raíz; Superficie foliar; Distribución espacial</SD>
<LO>INIST-17987.354000080507680090</LO>
<ID>99-0551132</ID>
</server>
</inist>
</record>

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Morphological factors determining salt tolerance in citrus seedlings : the shoot to root ratio modulates passive root uptake of chloride ions and their accumulation in leaves

Morphological factors determining salt tolerance in citrus seedlings : the shoot to root ratio modulates passive root uptake of chloride ions and their accumulation in leaves

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