Isohydricity of Two Different Citrus Species under Deficit Irrigation and Reclaimed Water Conditions

Citrus species are frequently subjected to water and saline stresses worldwide. We evaluated the effects of diurnal changes in the evaporative demands and soil water contents on the plant physiology of grapefruit and mandarin crops under saline reclaimed (RW) and transfer (TW) water conditions, comb...

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Detalhes bibliográficos
Autores: Romero-Trigueros, Cristina, Bayona Gambín, José María, Nortes, Pedro Antonio, Alarcón Cabañero, Juan José, Nicolás Nicolás, Emilio
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/346174
Acesso em linha:http://hdl.handle.net/10261/346174
Access Level:acceso abierto
Palavra-chave:ABA
Grapefruit
Hydraulic conductance
Mandarin
Saline stress
Stomatal conductance
Water relations
Water stress
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dc.title.none.fl_str_mv Isohydricity of Two Different Citrus Species under Deficit Irrigation and Reclaimed Water Conditions
title Isohydricity of Two Different Citrus Species under Deficit Irrigation and Reclaimed Water Conditions
spellingShingle Isohydricity of Two Different Citrus Species under Deficit Irrigation and Reclaimed Water Conditions
Romero-Trigueros, Cristina
ABA
Grapefruit
Hydraulic conductance
Mandarin
Saline stress
Stomatal conductance
Water relations
Water stress
title_short Isohydricity of Two Different Citrus Species under Deficit Irrigation and Reclaimed Water Conditions
title_full Isohydricity of Two Different Citrus Species under Deficit Irrigation and Reclaimed Water Conditions
title_fullStr Isohydricity of Two Different Citrus Species under Deficit Irrigation and Reclaimed Water Conditions
title_full_unstemmed Isohydricity of Two Different Citrus Species under Deficit Irrigation and Reclaimed Water Conditions
title_sort Isohydricity of Two Different Citrus Species under Deficit Irrigation and Reclaimed Water Conditions
dc.creator.none.fl_str_mv Romero-Trigueros, Cristina
Bayona Gambín, José María
Nortes, Pedro Antonio
Alarcón Cabañero, Juan José
Nicolás Nicolás, Emilio
author Romero-Trigueros, Cristina
author_facet Romero-Trigueros, Cristina
Bayona Gambín, José María
Nortes, Pedro Antonio
Alarcón Cabañero, Juan José
Nicolás Nicolás, Emilio
author_role author
author2 Bayona Gambín, José María
Nortes, Pedro Antonio
Alarcón Cabañero, Juan José
Nicolás Nicolás, Emilio
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
European Commission
Comisión Interministerial de Ciencia y Tecnología, CICYT (España)
Agencia Estatal de Investigación (España)
Fundación Séneca
Ministerio de Economía y Competitividad (España)
Romero-Trigueros, Cristina [0000-0002-8232-5698]
Nicolás Nicolás, Emilio [0000-0002-6964-6892]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv ABA
Grapefruit
Hydraulic conductance
Mandarin
Saline stress
Stomatal conductance
Water relations
Water stress
topic ABA
Grapefruit
Hydraulic conductance
Mandarin
Saline stress
Stomatal conductance
Water relations
Water stress
description Citrus species are frequently subjected to water and saline stresses worldwide. We evaluated the effects of diurnal changes in the evaporative demands and soil water contents on the plant physiology of grapefruit and mandarin crops under saline reclaimed (RW) and transfer (TW) water conditions, combined with two irrigation strategies, fully irrigated (fI) and non-irrigated (nI). The physiological responses were different depending on the species. Grapefruit showed an isohydric pattern, which restricted the use of the leaf water potential (Ψl) as a plant water status indicator. Its water status was affected by salinity (RW) and water stress (nI), mainly as the combination of both stresses (RW-nI); however, mandarin turned out to be relatively more tolerant to salinity and more sensitive to water stress, mainly because of its low hydraulic conductance (K) levels, showing a critical drop in Ψl that led to severe losses of root–stem (Kroot–stem) and canopy (Kcanopy) hydraulic conductance in TW-nI. This behavior was not observed in RW-nI because a reduction in canopy volume as an adaptive characteristic was observed; thus, mandarin exhibited more anisohydric behavior compared to grapefruit, but isohydrodynamic since its hydrodynamic water potential gradient from roots to shoots (ΔΨplant) was relatively constant across variations in stomatal conductance (gs) and soil water potential. The gs was considered a good plant water status indicator for irrigation scheduling purposes in both species, and its responses to diurnal VPD rise and soil drought were strongly correlated with Kroot–stem. ABA did not show any effect on stomatal regulation, highlighting the fundamental role of plant hydraulics in driving stomatal closure.
publishDate 2021
dc.date.none.fl_str_mv 2021
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/346174
url http://hdl.handle.net/10261/346174
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/MINECO//AGL2013-49047-C2-2-R
info:eu-repo/grantAgreement///AGL2016–77282-C3-1-R
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-106226RB-C21
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The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI: https://doi.org/10.3390/plants10102121
C. Romero–Trigueros acknowledges the financial support of the Consejería de Empleo, Universidades y Empresa (CARM), through the Fundación Séneca—Agencia de Ciencia y Tecnología de la Región de Murcia, for a postdoctoral fellowship (20363/PD/17), as well as the Spanish Research Agency of the Ministry of Science and Innovation for a contract from Juan de la Cierva-Incorporación (JC2019-040871-I). The authors are also grateful to the Fundación Séneca (19903/GERM/15)
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
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spelling Isohydricity of Two Different Citrus Species under Deficit Irrigation and Reclaimed Water ConditionsRomero-Trigueros, CristinaBayona Gambín, José MaríaNortes, Pedro AntonioAlarcón Cabañero, Juan JoséNicolás Nicolás, EmilioABAGrapefruitHydraulic conductanceMandarinSaline stressStomatal conductanceWater relationsWater stressCitrus species are frequently subjected to water and saline stresses worldwide. We evaluated the effects of diurnal changes in the evaporative demands and soil water contents on the plant physiology of grapefruit and mandarin crops under saline reclaimed (RW) and transfer (TW) water conditions, combined with two irrigation strategies, fully irrigated (fI) and non-irrigated (nI). The physiological responses were different depending on the species. Grapefruit showed an isohydric pattern, which restricted the use of the leaf water potential (Ψl) as a plant water status indicator. Its water status was affected by salinity (RW) and water stress (nI), mainly as the combination of both stresses (RW-nI); however, mandarin turned out to be relatively more tolerant to salinity and more sensitive to water stress, mainly because of its low hydraulic conductance (K) levels, showing a critical drop in Ψl that led to severe losses of root–stem (Kroot–stem) and canopy (Kcanopy) hydraulic conductance in TW-nI. This behavior was not observed in RW-nI because a reduction in canopy volume as an adaptive characteristic was observed; thus, mandarin exhibited more anisohydric behavior compared to grapefruit, but isohydrodynamic since its hydrodynamic water potential gradient from roots to shoots (ΔΨplant) was relatively constant across variations in stomatal conductance (gs) and soil water potential. The gs was considered a good plant water status indicator for irrigation scheduling purposes in both species, and its responses to diurnal VPD rise and soil drought were strongly correlated with Kroot–stem. ABA did not show any effect on stomatal regulation, highlighting the fundamental role of plant hydraulics in driving stomatal closure.This research was funded by Spanish Ministry projects with European Union FEDER funds (CICYT (FEDER, UE, AGL2010–17553; FEDER, UE, AGL2013–49047-C2–2-R; AEI/FEDER, UE, AGL2016–77282-C3–1- R; PID2019–106226RB-C21/ AEI/10.13039/501100011033)) granted to the authorsC. Romero–Trigueros acknowledges the financial support of the Consejería de Empleo, Universidades y Empresa (CARM), through the Fundación Séneca—Agencia de Ciencia y Tecnología de la Región de Murcia, for a postdoctoral fellowship (20363/PD/17), as well as the Spanish Research Agency of the Ministry of Science and Innovation for a contract from Juan de la Cierva-Incorporación (JC2019-040871-I). The authors are also grateful to the Fundación Séneca (19903/GERM/15)Peer reviewedMultidisciplinary Digital Publishing InstituteMinisterio de Ciencia e Innovación (España)European CommissionComisión Interministerial de Ciencia y Tecnología, CICYT (España)Agencia Estatal de Investigación (España)Fundación SénecaMinisterio de Economía y Competitividad (España)Romero-Trigueros, Cristina [0000-0002-8232-5698]Nicolás Nicolás, Emilio [0000-0002-6964-6892]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/346174reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement///AGL2010–17553info:eu-repo/grantAgreement/MINECO//AGL2013-49047-C2-2-Rinfo:eu-repo/grantAgreement///AGL2016–77282-C3-1-Rinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-106226RB-C21info:eu-repo/grantAgreement///JC2019-040871-IThe underlying dataset has been published as supplementary material of the article in the publisher platform at DOI: https://doi.org/10.3390/plants10102121C. Romero–Trigueros acknowledges the financial support of the Consejería de Empleo, Universidades y Empresa (CARM), through the Fundación Séneca—Agencia de Ciencia y Tecnología de la Región de Murcia, for a postdoctoral fellowship (20363/PD/17), as well as the Spanish Research Agency of the Ministry of Science and Innovation for a contract from Juan de la Cierva-Incorporación (JC2019-040871-I). The authors are also grateful to the Fundación Séneca (19903/GERM/15)Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3461742026-05-22T06:33:51Z
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