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Bielsa B - Autor o Coautor
Sanz M - Autor o Coautor
Rubio-Cabetas M - Autor (correspondencia)
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Publicaciones > Artículo

Uncovering early response to drought by proteomic, physiological and biochemical changes in the almond × peach rootstock 'Garnem'

Publicado en:Functional Plant Biology. 46 (11): 994-1008 - 2019-01-01 46(11), doi: 10.1071/FP19050

Bielsa B; Sanz M; Rubio-Cabetas M;

Afiliaciones

Área de Laboratorios de Análisis y Asistencia Tecnológica, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Av. Montañana 930, Zaragoza, 50059, Spain - Autor o Coautor
Centro de Investigación y Tecnología Agroalimentaria de Aragón - Entidad de origen
Ctr Invest & Tecnol Agroalimentaria Aragon CITA, Area Lab Anal & Asistencia Tecnol, Av Montanana 930, Zaragoza 50059, Spain - Autor o Coautor
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, INIFAP Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, INIA - Financiador
Unidad de Hortofruticultura, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), IA2 (CITA-Universidad de Zaragoza), Av. Montañana 930, Zaragoza, 50059, Spain - Autor o Coautor
Univ Zaragoza, Unidad Hortofruticultura, Ctr Invest & Tecnol Agroalimentaria Aragon CITA, IA2,CITA, Av Montanana 930, E-50009 Zaragoza, Spain - Autor o Coautor
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Resúmen

Resúmen: © 2019 CSIRO. Drought affects growth and metabolism in plants. To investigate the changes in root protein function involved in the early response to drought stress, a proteomic analysis in combination to a physiological and biochemical analysis was performed in plants of 'Garnem', an almond × peach hybrid rootstock, subjected to short-term drought stress. Abscisic acid (ABA) accumulation levels increased during the drought exposure, which induced stomatal closure, and thus, minimised water losses. These effects were reflected in stomatal conductance and leaf water potential levels. However, 'Garnem' was able to balance water content and maintain an osmotic adjustment in cell membranes, suggesting a dehydration avoidance strategy. The proteomic analysis revealed significant abundance changes in 29 and 24 spots after 2 and 24 h of drought stress respectively. Out of these, 15 proteins were identified by LC-ESI-MS/MS. The abundance changes of these proteins suggest the influence in drought-responsive mechanisms present in 'Garnem', allowing its adaptation to drought conditions. Overall, our study improves existing knowledge on the root proteomic changes in the early response to drought. This will lead to a better understanding of dehydration avoidance and tolerance strategies, and finally, help in new drought-tolerance breeding approaches.

Palabras clave: Abscisic acid; Drought tolerance; Proteomics; Prunus; Water stress

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WoS Scopus by Scimago
Best Categ.Plant SciencesAgronomy and Crop Science
WoSScopus by ScimagoSPIFecytAgaurDialnetCircCapesMiar
IF2.6171.010--11.000
Rank64/22940/319
QQ2Q1-----A2
DD3D2-
TT1T1
PP73P13
Index ERIC-
Index Emergin-
Index AHCI-