The roots of olive cultivars differing in tolerance to Verticillium dahliae show quantitative differences in phenolic and triterpenic profiles
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Cardoni, Martina; Olmo García, Lucía; Serrano García, Irene; Carrasco Pancorbo, Alegría; Mercado Blanco, JesúsEditorial
Taylor & Francis
Materia
Lignans Olea europaea Oleuropein Oleuropein aglycone Elenolic acid glucoside Pentacyclic triterpenes
Date
2023-05-02Referencia bibliográfica
Martina Cardoni, Lucía Olmo-García, Irene Serrano-García, Alegría Carrasco- Pancorbo & Jesús Mercado-Blanco (2023) The roots of olive cultivars differing in tolerance to Verticillium dahliae show quantitative differences in phenolic and triterpenic profiles, Journal of Plant Interactions, 18:1, 2206840, [DOI: 10.1080/17429145.2023.2206840]
Sponsorship
Spanish Ministerio de Ciencia, Innovacion y Universidades (MICIU)/Agencia Estatal de Investigacion (AEI) PID2019-106283RB-I00, BES-2017-081269, FPU19/00700; MCIN/AEI RYC2021-032996-I; European Union NextGenerationEU/PRTR RYC2021-032996-I; FEDER/Junta de Andalucia-Consejeria de Conocimiento, Investigacion y Universidad; Junta de Andalucia Transformacion Economica, Industria, Conocimiento y Universidades P20_00263; FEDER/Junta de Andalucia-Consejeria de Economia y Conocimiento B-AGR-416-UGR18Abstract
Verticillium wilt of olive (VWO), caused by Verticillium dahliae, is a major concern in many olive-
growing countries. An efficient VWO control measure is the use of tolerant/resistant cultivars. Low
information is available about olive secondary metabolites and its relationship with VWO
tolerance. In this study, a comprehensive metabolic profiling of the roots of six olive cultivars
differing in their level of tolerance/susceptibility to VWO was addressed. Potential changes in the
metabolite profiles due to the presence of the pathogen were also assessed. A strong relationship
between the quantitative basal composition of the root secondary metabolic profile and VWO
tolerance/susceptibility of olive varieties was found. Tolerant cultivars showed higher content of
secoiridoids, while the susceptible ones presented greater amounts of verbascoside and
methoxypinoresinol glucoside. The presence of V. dahliae only caused few significant variations
mostly restricted to the earliest times after inoculation. Thus, a rapid activation of biochemical-
based root defense mechanisms was observed.