The Rootstock Genotypes Determine Drought Tolerance by Regulating Aquaporin Expression at the Transcript Level and Phytohormone Balance

• Published in: Plants (Basel) Vol. 12; no. 4; p. 718
• Main Authors: Labarga, David, Mairata, Andreu, Puelles, Miguel, Martín, Ignacio, Albacete, Alfonso, García-Escudero, Enrique, Pou, Alicia
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 01.02.2023; MDPI
• Subjects: Abiotic stress; Abscisic acid; Aquaporins; Conductance; Drought; Drought resistance; Gas exchange; Genetic aspects; Genotypes; Grafting; Grapes; grapevine; Hydraulics; Immunological tolerance; Leaves; Metabolism; molecular alterations; Photosynthesis; Physiological effects; Physiology; Plant growth; Plant heat tolerance; Proteins; Roots (Botany); Rootstocks; Scions; Stomata; Stomatal conductance; stomatal traits and plant physiology; Transpiration; Vines; Water deficit; Water shortages; Water stress; Water transport; Xylem; Spain; water stress; grapevine; stomatal traits and plant physiology; molecular alterations

Grapevine rootstocks may supply water to the scion according to the transpiration demand, thus modulating plant responses to water deficit, but the scion variety can alter these responses, as well. The rootstock genotypes' effect on the scion physiological response, aquaporin expression, and ho...