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Artículo

Different relative humidity conditions combined with chloride and sulfate salinity treatments modify abscisic acid and salicylic acid levels in the halophyte Prosopis strombulifera

Devinar, María GenovevaIcon ; Llanes, Analia SusanaIcon ; Masciarelli, Oscar AlbertoIcon ; Luna, Maria VirginiaIcon
Fecha de publicación: 02/2013
Editorial: Springer
Revista: Plant Growth Regulation
ISSN: 0167-6903
e-ISSN: 1573-5087
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Biotecnología Agropecuaria

Resumen

It has been shown that abscisic acid (ABA) and salicylic acid (SA) act as endogenous signal molecules responsible for inducing abiotic stress tolerance in plants. However, our knowledge on the role of both phytohormones in response to environmental conditions in halophytic plants is still limited. In this study endogenous ABA and SA levels, growth parameters and chlorophylls content were determined in leaves and roots of the halophyte Prosopis strombulifera cultivated under increasing NaCl and Na2SO4 concentrations, at 30 and 70 % relative humidity (RH) conditions. Endogenous ABA and SA content differed depending on the salt type and concentration, RH, plant age and the organ analyzed. Under low RH conditions P. strombulifera growth was strongly inhibited and chlorophyll a and b content were decreased. In leaves of Na2SO4-treated plants at 30 % RH, high ABA levels were correlated with protection against dehydration and ion toxicity. Instead, high SA levels were correlated with the damaging effect of sulfate anion and low RH on plant growth. NaCl-treated plants growth was also inhibited at 30 % RH although levels of both hormones were not significantly increased. Taken together, the salt toxic effects on growth parameters and photosynthetic pigments were accentuated by low RH conditions and these responses were reflected on ABA and SA content.
Palabras clave: Abscicic Acid , Halophytes , Humidity Conditions , Plant Growth , Salicilic Acid , Salinity
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/22801
DOI: http://dx.doi.org/10.1007/s10725-013-9796-5
URL: https://link.springer.com/article/10.1007%2Fs10725-013-9796-5
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Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Citación
Devinar, María Genoveva; Llanes, Analia Susana; Masciarelli, Oscar Alberto; Luna, Maria Virginia; Different relative humidity conditions combined with chloride and sulfate salinity treatments modify abscisic acid and salicylic acid levels in the halophyte Prosopis strombulifera; Springer; Plant Growth Regulation; 70; 3; 2-2013; 247-256
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