Involvement of ascorbate peroxidase and heat shock proteins on citrus tolerance to combined conditions of drought and high temperatures
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Otros documentos de la autoría: Balfagón Sanmartín, Damián; I Zandalinas, Sara; Baliño, Pablo; Muriach, Maria; Gomez-Cadenas, Aurelio
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https://doi.org/10.1016/j.plaphy.2018.03.029 |
Metadatos
Título
Involvement of ascorbate peroxidase and heat shock proteins on citrus tolerance to combined conditions of drought and high temperaturesAutoría
Fecha de publicación
2018Editor
ElsevierISSN
0981-9428; 1873-2690Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S0981942818301529Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Usually several environmental stresses occur in nature simultaneously causing a unique plant response. However, most of the studies until now have focused in individually-applied abiotic stress conditions. Carrizo ... [+]
Usually several environmental stresses occur in nature simultaneously causing a unique plant response. However, most of the studies until now have focused in individually-applied abiotic stress conditions. Carrizo citrange (Poncirus trifoliata L. Raf. X Citrus sinensis L. Osb.) and Cleopatra mandarin (Citrus reshni Hort. ex Tan.) are two citrus rootstocks with contrasting tolerance to drought and heat stress and have been used in this work as a model for the study of plant tolerance to the combination of drought and high temperatures. According to our results, leaf integrity and photosynthetic machinery are less affected in Carrizo than in Cleopatra under combined conditions of drought and heat stress. The pattern of accumulation of three proteins (APX, HSP101 and HSP17.6) involved in abiotic stress tolerance shows that they do not accumulate under water stress conditions individually applied. However, contents of APX and HSP101 are higher in Carrizo than in Cleopatra under stress combination whereas HSP17.6 has a similar behavior in both types of plants. This, together with a better stomatal control and a higher APX activity of Carrizo, contributes to the higher tolerance of Carrizo plants to the combination of stresses and point to it as a better rootstock than Cleopatra (traditionally used in areas with scare water supplies) under the predictable future climatic conditions with frequent periods of drought combined with high temperatures. This work also provides the basis for testing the tolerance of different citrus varieties grafted on these rootstocks and growing under different field conditions. [-]
Publicado en
Plant Physiology and Biochemistry, Volume 127, June 2018.Proyecto de investigación
AGL2016-76574-R ; UJI-B2016-23Derechos de acceso
0981-9428/ © 2018 Elsevier Masson SAS. All rights reserved.
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info:eu-repo/semantics/restrictedAccess
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