Soluble Carbohydrates as Osmolytes in Several Halophytes from a Mediterranean Salt Marsh

Compartmentalization of toxic ions in the vacuole and accumulation of osmolytes in the cytoplasm is a common response of halophytes to high soil salinity. Soluble carbohydrates, such as sugars and polyols, are some of the compatible solutes used for osmotic adjustment and osmoprotection. Major carbo...

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Detalles Bibliográficos
Autores: Gil, Ricardo, Lull, Cristina, Boscaiu, Mónica, Bautista, Inmaculada, Lidón, Antonio, Vicente, Óscar
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/48597
Acceso en línea:http://hdl.handle.net/10261/48597
Access Level:acceso abierto
Palabra clave:Salinity tolerance
Plantago-crassifolia
Stress
Proline
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spelling Soluble Carbohydrates as Osmolytes in Several Halophytes from a Mediterranean Salt MarshGil, RicardoLull, CristinaBoscaiu, MónicaBautista, InmaculadaLidón, AntonioVicente, ÓscarSalinity tolerancePlantago-crassifoliaStressProlineCompartmentalization of toxic ions in the vacuole and accumulation of osmolytes in the cytoplasm is a common response of halophytes to high soil salinity. Soluble carbohydrates, such as sugars and polyols, are some of the compatible solutes used for osmotic adjustment and osmoprotection. Major carbohydrates were identified and quantified by high-performance anion-exchange chromatography, combined with pulsed amperometric detection (HPAEC-PAD), in five halophytic species from a Mediterranean salt marsh (Juncus acutus, Juncus maritimus, Plantago crassifolia, Inula crithmoides and Sarcocornia fruticosa). Sucrose, followed by glucose and fructose were the more representative sugars detected in J. acutus and J. maritimus, and sorbitol the only soluble carbohydrate present at significant levels in P. crassifolia. In the other two taxa analyzed, no clearly predominant carbohydrates were observed: polyols (myo-inositol and glycerol) seemed to be the most representative in I. crithmoides, albeit at relatively low concentrations, and sugars (sucrose and glucose) in S. fruticosa. Multivariate statistical analysis was used to correlate soil properties and meteorological conditions increasing soil salinity, with seasonal changes in carbohydrate contents, to establish their possible function as osmolytes and their contribution to salt tolerance in the investigated species. The obtained results confirmed sorbitol as the major functional osmolyte in P. crassifolia-as it has been described previously for other species of the genus-and suggested the participation of sucrose and, to a lesser extent, glucose and fructose in osmoregulatory mechanisms in J. acutus and J. maritimus.This study was supported by the Spanish Ministry of Science and Innovation (project CGL2008-00438/BOS), with contribution from the European Regional Development Fund.Peer reviewed201220122011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/48597reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/485972026-05-22T06:33:51Z
dc.title.none.fl_str_mv Soluble Carbohydrates as Osmolytes in Several Halophytes from a Mediterranean Salt Marsh
title Soluble Carbohydrates as Osmolytes in Several Halophytes from a Mediterranean Salt Marsh
spellingShingle Soluble Carbohydrates as Osmolytes in Several Halophytes from a Mediterranean Salt Marsh
Gil, Ricardo
Salinity tolerance
Plantago-crassifolia
Stress
Proline
title_short Soluble Carbohydrates as Osmolytes in Several Halophytes from a Mediterranean Salt Marsh
title_full Soluble Carbohydrates as Osmolytes in Several Halophytes from a Mediterranean Salt Marsh
title_fullStr Soluble Carbohydrates as Osmolytes in Several Halophytes from a Mediterranean Salt Marsh
title_full_unstemmed Soluble Carbohydrates as Osmolytes in Several Halophytes from a Mediterranean Salt Marsh
title_sort Soluble Carbohydrates as Osmolytes in Several Halophytes from a Mediterranean Salt Marsh
dc.creator.none.fl_str_mv Gil, Ricardo
Lull, Cristina
Boscaiu, Mónica
Bautista, Inmaculada
Lidón, Antonio
Vicente, Óscar
author Gil, Ricardo
author_facet Gil, Ricardo
Lull, Cristina
Boscaiu, Mónica
Bautista, Inmaculada
Lidón, Antonio
Vicente, Óscar
author_role author
author2 Lull, Cristina
Boscaiu, Mónica
Bautista, Inmaculada
Lidón, Antonio
Vicente, Óscar
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Salinity tolerance
Plantago-crassifolia
Stress
Proline
topic Salinity tolerance
Plantago-crassifolia
Stress
Proline
description Compartmentalization of toxic ions in the vacuole and accumulation of osmolytes in the cytoplasm is a common response of halophytes to high soil salinity. Soluble carbohydrates, such as sugars and polyols, are some of the compatible solutes used for osmotic adjustment and osmoprotection. Major carbohydrates were identified and quantified by high-performance anion-exchange chromatography, combined with pulsed amperometric detection (HPAEC-PAD), in five halophytic species from a Mediterranean salt marsh (Juncus acutus, Juncus maritimus, Plantago crassifolia, Inula crithmoides and Sarcocornia fruticosa). Sucrose, followed by glucose and fructose were the more representative sugars detected in J. acutus and J. maritimus, and sorbitol the only soluble carbohydrate present at significant levels in P. crassifolia. In the other two taxa analyzed, no clearly predominant carbohydrates were observed: polyols (myo-inositol and glycerol) seemed to be the most representative in I. crithmoides, albeit at relatively low concentrations, and sugars (sucrose and glucose) in S. fruticosa. Multivariate statistical analysis was used to correlate soil properties and meteorological conditions increasing soil salinity, with seasonal changes in carbohydrate contents, to establish their possible function as osmolytes and their contribution to salt tolerance in the investigated species. The obtained results confirmed sorbitol as the major functional osmolyte in P. crassifolia-as it has been described previously for other species of the genus-and suggested the participation of sucrose and, to a lesser extent, glucose and fructose in osmoregulatory mechanisms in J. acutus and J. maritimus.
publishDate 2011
dc.date.none.fl_str_mv 2011
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/48597
url http://hdl.handle.net/10261/48597
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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