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Gas exchange rates at different vapor pressure deficits and water relations of 'Pera' sweet orange plants with citrus variegated chlorosis (CVC)

Identifieur interne : 000739 ( PascalFrancis/Corpus ); précédent : 000738; suivant : 000740

Gas exchange rates at different vapor pressure deficits and water relations of 'Pera' sweet orange plants with citrus variegated chlorosis (CVC)

Auteurs : Gustavo Habermann ; Eduardo Caruso Machado ; Joao Domingos Rodrigues ; Camilo Lazaro Medina

Source :

RBID : Pascal:03-0427396

Descripteurs français

English descriptors

Abstract

Net photosynthesis (A) and transpiration rates (E), stomatal conductance (g), water use efficiency (WUE), intrinsic water use efficiency (IWUE) and internal leaf CO2 concentration (Ci) in response to different vapor pressure deficit (1.2 and 2.5 kPa) were investigated in 'Pera' sweet orange plants affected by citrus variegated chlorosis (CVC), a disease caused by Xylella fastidiosa. All plants were well watered and leaf water potential (Ψw) was also measured by the psychrometric technique. Results showed that healthy plants responded to higher vapor pressure deficit (VPD), lowering its net photosynthesis and transpiration rates, and stomatal conductance. However, diseased plants presented no clear response to VPD, showing lower A, E and g for both VPDs studied and very similar values to these variables in healthy plants at the highest VPD. Internal leaf CO2 concentration also decreased for healthy plants when under the highest VPD, and surprisingly, the same pattern of response was found in plants with CVC. These results, the lower Ψw and higher WUE values for diseased plants, indicated that this disease may cause stomatal dysfunction and affect the water resistance through xylem vessels, which ultimately may play some role in photosynthetic metabolism.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

pA  
A01 01  1    @0 0304-4238
A02 01      @0 SHRTAH
A03   1    @0 Sci. hortic.
A05       @2 98
A06       @2 3
A08 01  1  ENG  @1 Gas exchange rates at different vapor pressure deficits and water relations of 'Pera' sweet orange plants with citrus variegated chlorosis (CVC)
A11 01  1    @1 HABERMANN (Gustavo)
A11 02  1    @1 CARUSO MACHADO (Eduardo)
A11 03  1    @1 DOMINGOS RODRIGUES (Joao)
A11 04  1    @1 LAZARO MEDINA (Camilo)
A14 01      @1 Departamento de Botânica, Instituto de Biociências, Universidade Estadual Paulista (UNESP), CP 510 @2 18618-000 Botucatu, SP @3 BRA @Z 1 aut. @Z 3 aut.
A14 02      @1 Instituto Agronõmico de Campinas (IAC), Centro de Ecofisiologia e Biofísica @2 13001-970 Campinas, SP @3 BRA @Z 2 aut.
A14 03      @1 Departamento de Fisiologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109 @2 13083-970 Campinas, SP @3 BRA @Z 4 aut.
A20       @1 233-245
A21       @1 2003
A23 01      @0 ENG
A43 01      @1 INIST @2 16233 @5 354000111013010040
A44       @0 0000 @1 © 2003 INIST-CNRS. All rights reserved.
A45       @0 1 p.3/4
A47 01  1    @0 03-0427396
A60       @1 P
A61       @0 A
A64 01  1    @0 Scientia horticulturae
A66 01      @0 NLD
C01 01    ENG  @0 Net photosynthesis (A) and transpiration rates (E), stomatal conductance (g), water use efficiency (WUE), intrinsic water use efficiency (IWUE) and internal leaf CO2 concentration (Ci) in response to different vapor pressure deficit (1.2 and 2.5 kPa) were investigated in 'Pera' sweet orange plants affected by citrus variegated chlorosis (CVC), a disease caused by Xylella fastidiosa. All plants were well watered and leaf water potential (Ψw) was also measured by the psychrometric technique. Results showed that healthy plants responded to higher vapor pressure deficit (VPD), lowering its net photosynthesis and transpiration rates, and stomatal conductance. However, diseased plants presented no clear response to VPD, showing lower A, E and g for both VPDs studied and very similar values to these variables in healthy plants at the highest VPD. Internal leaf CO2 concentration also decreased for healthy plants when under the highest VPD, and surprisingly, the same pattern of response was found in plants with CVC. These results, the lower Ψw and higher WUE values for diseased plants, indicated that this disease may cause stomatal dysfunction and affect the water resistance through xylem vessels, which ultimately may play some role in photosynthetic metabolism.
C02 01  X    @0 002A34F03
C03 01  X  FRE  @0 Echange gazeux @5 01
C03 01  X  ENG  @0 Gas exchange @5 01
C03 01  X  SPA  @0 Intercambio gaseoso @5 01
C03 02  X  FRE  @0 Pression vapeur @5 02
C03 02  X  ENG  @0 Vapor pressure @5 02
C03 02  X  SPA  @0 Presión vapor @5 02
C03 03  X  FRE  @0 Régime hydrique @5 03
C03 03  X  ENG  @0 Water regime @5 03
C03 03  X  SPA  @0 Régimen hídrico @5 03
C03 04  X  FRE  @0 Bactériose @5 04
C03 04  X  ENG  @0 Bacteriosis @5 04
C03 04  X  SPA  @0 Bacteriosis @5 04
C03 05  X  FRE  @0 Chlorose @5 05
C03 05  X  ENG  @0 Chlorosis @5 05
C03 05  X  SPA  @0 Clorosis @5 05
C03 06  X  FRE  @0 Efficacité utilisation eau @5 06
C03 06  X  ENG  @0 Water use efficiency @5 06
C03 06  X  SPA  @0 Eficacia utilización agua @5 06
C03 07  X  FRE  @0 Citrus sinensis @2 NS @5 10
C03 07  X  ENG  @0 Citrus sinensis @2 NS @5 10
C03 07  X  SPA  @0 Citrus sinensis @2 NS @5 10
C03 08  X  FRE  @0 Xylella fastidiosa @2 NS @4 INC @5 76
C07 01  X  FRE  @0 Infection
C07 01  X  ENG  @0 Infection
C07 01  X  SPA  @0 Infección
C07 02  X  FRE  @0 Rutaceae @2 NS
C07 02  X  ENG  @0 Rutaceae @2 NS
C07 02  X  SPA  @0 Rutaceae @2 NS
C07 03  X  FRE  @0 Dicotyledones @2 NS
C07 03  X  ENG  @0 Dicotyledones @2 NS
C07 03  X  SPA  @0 Dicotyledones @2 NS
C07 04  X  FRE  @0 Angiospermae @2 NS
C07 04  X  ENG  @0 Angiospermae @2 NS
C07 04  X  SPA  @0 Angiospermae @2 NS
C07 05  X  FRE  @0 Spermatophyta @2 NS
C07 05  X  ENG  @0 Spermatophyta @2 NS
C07 05  X  SPA  @0 Spermatophyta @2 NS
C07 06  X  FRE  @0 Agrume @5 39
C07 06  X  ENG  @0 Citrus fruit @5 39
C07 06  X  SPA  @0 Agrios @5 39
C07 07  X  FRE  @0 Arbre fruitier @5 40
C07 07  X  ENG  @0 Fruit tree @5 40
C07 07  X  SPA  @0 Arbol frutal @5 40
C07 08  X  FRE  @0 Phytopathogène @5 41
C07 08  X  ENG  @0 Plant pathogen @5 41
C07 08  X  SPA  @0 Fitopatógeno @5 41
C07 09  X  FRE  @0 Bactérie @5 42
C07 09  X  ENG  @0 Bacteria @5 42
C07 09  X  SPA  @0 Bacteria @5 42
N21       @1 293
N82       @1 PSI

Format Inist (serveur)

NO : PASCAL 03-0427396 INIST
ET : Gas exchange rates at different vapor pressure deficits and water relations of 'Pera' sweet orange plants with citrus variegated chlorosis (CVC)
AU : HABERMANN (Gustavo); CARUSO MACHADO (Eduardo); DOMINGOS RODRIGUES (Joao); LAZARO MEDINA (Camilo)
AF : Departamento de Botânica, Instituto de Biociências, Universidade Estadual Paulista (UNESP), CP 510/18618-000 Botucatu, SP/Brésil (1 aut., 3 aut.); Instituto Agronõmico de Campinas (IAC), Centro de Ecofisiologia e Biofísica/13001-970 Campinas, SP/Brésil (2 aut.); Departamento de Fisiologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109/13083-970 Campinas, SP/Brésil (4 aut.)
DT : Publication en série; Niveau analytique
SO : Scientia horticulturae; ISSN 0304-4238; Coden SHRTAH; Pays-Bas; Da. 2003; Vol. 98; No. 3; Pp. 233-245; Bibl. 1 p.3/4
LA : Anglais
EA : Net photosynthesis (A) and transpiration rates (E), stomatal conductance (g), water use efficiency (WUE), intrinsic water use efficiency (IWUE) and internal leaf CO2 concentration (Ci) in response to different vapor pressure deficit (1.2 and 2.5 kPa) were investigated in 'Pera' sweet orange plants affected by citrus variegated chlorosis (CVC), a disease caused by Xylella fastidiosa. All plants were well watered and leaf water potential (Ψw) was also measured by the psychrometric technique. Results showed that healthy plants responded to higher vapor pressure deficit (VPD), lowering its net photosynthesis and transpiration rates, and stomatal conductance. However, diseased plants presented no clear response to VPD, showing lower A, E and g for both VPDs studied and very similar values to these variables in healthy plants at the highest VPD. Internal leaf CO2 concentration also decreased for healthy plants when under the highest VPD, and surprisingly, the same pattern of response was found in plants with CVC. These results, the lower Ψw and higher WUE values for diseased plants, indicated that this disease may cause stomatal dysfunction and affect the water resistance through xylem vessels, which ultimately may play some role in photosynthetic metabolism.
CC : 002A34F03
FD : Echange gazeux; Pression vapeur; Régime hydrique; Bactériose; Chlorose; Efficacité utilisation eau; Citrus sinensis; Xylella fastidiosa
FG : Infection; Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Agrume; Arbre fruitier; Phytopathogène; Bactérie
ED : Gas exchange; Vapor pressure; Water regime; Bacteriosis; Chlorosis; Water use efficiency; Citrus sinensis
EG : Infection; Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Citrus fruit; Fruit tree; Plant pathogen; Bacteria
SD : Intercambio gaseoso; Presión vapor; Régimen hídrico; Bacteriosis; Clorosis; Eficacia utilización agua; Citrus sinensis
LO : INIST-16233.354000111013010040
ID : 03-0427396

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Pascal:03-0427396

Le document en format XML

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<div type="abstract" xml:lang="en">Net photosynthesis (A) and transpiration rates (E), stomatal conductance (g), water use efficiency (WUE), intrinsic water use efficiency (IWUE) and internal leaf CO
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<sub>w</sub>
) was also measured by the psychrometric technique. Results showed that healthy plants responded to higher vapor pressure deficit (VPD), lowering its net photosynthesis and transpiration rates, and stomatal conductance. However, diseased plants presented no clear response to VPD, showing lower A, E and g for both VPDs studied and very similar values to these variables in healthy plants at the highest VPD. Internal leaf CO
<sub>2</sub>
concentration also decreased for healthy plants when under the highest VPD, and surprisingly, the same pattern of response was found in plants with CVC. These results, the lower Ψ
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concentration (C
<sub>i</sub>
) in response to different vapor pressure deficit (1.2 and 2.5 kPa) were investigated in 'Pera' sweet orange plants affected by citrus variegated chlorosis (CVC), a disease caused by Xylella fastidiosa. All plants were well watered and leaf water potential (Ψ
<sub>w</sub>
) was also measured by the psychrometric technique. Results showed that healthy plants responded to higher vapor pressure deficit (VPD), lowering its net photosynthesis and transpiration rates, and stomatal conductance. However, diseased plants presented no clear response to VPD, showing lower A, E and g for both VPDs studied and very similar values to these variables in healthy plants at the highest VPD. Internal leaf CO
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<fC03 i1="04" i2="X" l="SPA">
<s0>Bacteriosis</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE">
<s0>Chlorose</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG">
<s0>Chlorosis</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA">
<s0>Clorosis</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE">
<s0>Efficacité utilisation eau</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG">
<s0>Water use efficiency</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA">
<s0>Eficacia utilización agua</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE">
<s0>Citrus sinensis</s0>
<s2>NS</s2>
<s5>10</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG">
<s0>Citrus sinensis</s0>
<s2>NS</s2>
<s5>10</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA">
<s0>Citrus sinensis</s0>
<s2>NS</s2>
<s5>10</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE">
<s0>Xylella fastidiosa</s0>
<s2>NS</s2>
<s4>INC</s4>
<s5>76</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE">
<s0>Infection</s0>
</fC07>
<fC07 i1="01" i2="X" l="ENG">
<s0>Infection</s0>
</fC07>
<fC07 i1="01" i2="X" l="SPA">
<s0>Infección</s0>
</fC07>
<fC07 i1="02" i2="X" l="FRE">
<s0>Rutaceae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="02" i2="X" l="ENG">
<s0>Rutaceae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="02" i2="X" l="SPA">
<s0>Rutaceae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="03" i2="X" l="FRE">
<s0>Dicotyledones</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="03" i2="X" l="ENG">
<s0>Dicotyledones</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="03" i2="X" l="SPA">
<s0>Dicotyledones</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="04" i2="X" l="FRE">
<s0>Angiospermae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="04" i2="X" l="ENG">
<s0>Angiospermae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="04" i2="X" l="SPA">
<s0>Angiospermae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="05" i2="X" l="FRE">
<s0>Spermatophyta</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="05" i2="X" l="ENG">
<s0>Spermatophyta</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="05" i2="X" l="SPA">
<s0>Spermatophyta</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="06" i2="X" l="FRE">
<s0>Agrume</s0>
<s5>39</s5>
</fC07>
<fC07 i1="06" i2="X" l="ENG">
<s0>Citrus fruit</s0>
<s5>39</s5>
</fC07>
<fC07 i1="06" i2="X" l="SPA">
<s0>Agrios</s0>
<s5>39</s5>
</fC07>
<fC07 i1="07" i2="X" l="FRE">
<s0>Arbre fruitier</s0>
<s5>40</s5>
</fC07>
<fC07 i1="07" i2="X" l="ENG">
<s0>Fruit tree</s0>
<s5>40</s5>
</fC07>
<fC07 i1="07" i2="X" l="SPA">
<s0>Arbol frutal</s0>
<s5>40</s5>
</fC07>
<fC07 i1="08" i2="X" l="FRE">
<s0>Phytopathogène</s0>
<s5>41</s5>
</fC07>
<fC07 i1="08" i2="X" l="ENG">
<s0>Plant pathogen</s0>
<s5>41</s5>
</fC07>
<fC07 i1="08" i2="X" l="SPA">
<s0>Fitopatógeno</s0>
<s5>41</s5>
</fC07>
<fC07 i1="09" i2="X" l="FRE">
<s0>Bactérie</s0>
<s5>42</s5>
</fC07>
<fC07 i1="09" i2="X" l="ENG">
<s0>Bacteria</s0>
<s5>42</s5>
</fC07>
<fC07 i1="09" i2="X" l="SPA">
<s0>Bacteria</s0>
<s5>42</s5>
</fC07>
<fN21>
<s1>293</s1>
</fN21>
<fN82>
<s1>PSI</s1>
</fN82>
</pA>
</standard>
<server>
<NO>PASCAL 03-0427396 INIST</NO>
<ET>Gas exchange rates at different vapor pressure deficits and water relations of 'Pera' sweet orange plants with citrus variegated chlorosis (CVC)</ET>
<AU>HABERMANN (Gustavo); CARUSO MACHADO (Eduardo); DOMINGOS RODRIGUES (Joao); LAZARO MEDINA (Camilo)</AU>
<AF>Departamento de Botânica, Instituto de Biociências, Universidade Estadual Paulista (UNESP), CP 510/18618-000 Botucatu, SP/Brésil (1 aut., 3 aut.); Instituto Agronõmico de Campinas (IAC), Centro de Ecofisiologia e Biofísica/13001-970 Campinas, SP/Brésil (2 aut.); Departamento de Fisiologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109/13083-970 Campinas, SP/Brésil (4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Scientia horticulturae; ISSN 0304-4238; Coden SHRTAH; Pays-Bas; Da. 2003; Vol. 98; No. 3; Pp. 233-245; Bibl. 1 p.3/4</SO>
<LA>Anglais</LA>
<EA>Net photosynthesis (A) and transpiration rates (E), stomatal conductance (g), water use efficiency (WUE), intrinsic water use efficiency (IWUE) and internal leaf CO
<sub>2</sub>
concentration (C
<sub>i</sub>
) in response to different vapor pressure deficit (1.2 and 2.5 kPa) were investigated in 'Pera' sweet orange plants affected by citrus variegated chlorosis (CVC), a disease caused by Xylella fastidiosa. All plants were well watered and leaf water potential (Ψ
<sub>w</sub>
) was also measured by the psychrometric technique. Results showed that healthy plants responded to higher vapor pressure deficit (VPD), lowering its net photosynthesis and transpiration rates, and stomatal conductance. However, diseased plants presented no clear response to VPD, showing lower A, E and g for both VPDs studied and very similar values to these variables in healthy plants at the highest VPD. Internal leaf CO
<sub>2</sub>
concentration also decreased for healthy plants when under the highest VPD, and surprisingly, the same pattern of response was found in plants with CVC. These results, the lower Ψ
<sub>w</sub>
and higher WUE values for diseased plants, indicated that this disease may cause stomatal dysfunction and affect the water resistance through xylem vessels, which ultimately may play some role in photosynthetic metabolism.</EA>
<CC>002A34F03</CC>
<FD>Echange gazeux; Pression vapeur; Régime hydrique; Bactériose; Chlorose; Efficacité utilisation eau; Citrus sinensis; Xylella fastidiosa</FD>
<FG>Infection; Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Agrume; Arbre fruitier; Phytopathogène; Bactérie</FG>
<ED>Gas exchange; Vapor pressure; Water regime; Bacteriosis; Chlorosis; Water use efficiency; Citrus sinensis</ED>
<EG>Infection; Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Citrus fruit; Fruit tree; Plant pathogen; Bacteria</EG>
<SD>Intercambio gaseoso; Presión vapor; Régimen hídrico; Bacteriosis; Clorosis; Eficacia utilización agua; Citrus sinensis</SD>
<LO>INIST-16233.354000111013010040</LO>
<ID>03-0427396</ID>
</server>
</inist>
</record>

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