Please use this identifier to cite or link to this item: http://hdl.handle.net/2067/46101
Title: Antifungal activity of hydroxytyrosol enriched extracts from olive mill waste against Verticillium dahliae, the cause of Verticillium wilt of olive
Authors: Drais, Mounira Inas
Pannucci, Elisa
Caracciolo, Rocco
Bernini, Roberta 
Romani,Annalisa
Santi, Luca 
Varvaro, Leonardo 
Journal: PHYTOPATHOLOGIA MEDITERRANEA 
Issue Date: 2021
Abstract: 
Verticillium wilt (caused by Verticillium dahliae Kleb.) is an important disease affecting olive (Olea europaea L.) production. Effective control of this disease relies on integrated management strategies. In vitro antifungal activity of two hydrox ytyrosol (HTyr) enriched extracts (HTE1 and HTE2) obtained from olive mill waste products (OMWP) was assessed against V. dahliae. Inhibitory effects of pure HTyr as a standard, and HTE1 and HTE2 at different concentrations, were evaluated on myce lium growth and conidium germination of V. dahliae. Chemical characterization of
HTE1 and HTE2 allowed identification and quantification of HTyr as the main con stituent in both extracts along with other low molecular weight phenols. HTE1 showed a higher inhibitory activity in both growth and conidium germination of V. dahliae.
At the tested concentrations, low antifungal effects of HTyr were observed. After 3 d, 1 mg mL-1 of HTE1 gave greater inhibition of mycelium growth than HTE2 or HTyr. After 24 h, HTE1 gave 55% inhibition of conidium germination, and HTyr and HTE2 both gave 37% inhibition. This study has demonstrated that phenolic compounds derived from OMWP have antifungal activity against V. dahliae, indicating the poten tial of these compounds for eco-friendly control of Verticillium wilt.
URI: http://hdl.handle.net/2067/46101
ISSN: 1593-2095
DOI: 10.36253/phyto-12019
Rights: Attribution 4.0 International
Appears in Collections:A1. Articolo in rivista

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