Interaction between ABA and cytokinins in salinized tomato plants

• Autores: A. Martínez Pérez, E. Bahar, Alfonso Albacete Moreno, J. A. J. Thompson, María Josefa Sánchez Iglesias
• Localización: Proceedings of the 4th. Workshop on Agri-Food Research. WIA.15 / coord. por Javier Calatrava Leyva; Francisco Artés Hernández (aut.), Marcos Egea Gutíerrez-Cortines (aut.), Juan Antonio Fernández Hernández (aut.), Alain Baille (aut.), 2016, ISBN 978-84-608-5399-2, págs. 148-151
• Idioma: inglés
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• Resumen

  • Abscisic acid (ABA) and cytokinins (CKs) are phytohormones that mediate plant responses to abiotic stress and are mainly considered to be produced in roots. These two plant hormones have long been considered antagonists, but the role of this antagonism in mediating abiotic stress resistance remains unknown. In this study we have used reciprocal grafting of transgenic lines with altered hormone synthesis (ABA or CK synthesis) with the aim of assessing the importance of ABA and CK interaction in mediating plant salinity responses in tomato. Preliminary results have shown a negative effect in ABA and CK on tomato plant biomass under salinity. Results have also indicated that jasmonic acid (JA) might be involved in the negative impact on tomato growth caused by ABA and CK interaction under salt conditions.