RT info:eu-repo/semantics/article
T1 Antifungal Potential of Canarian Plant Extracts against High-Risk Phytopathogens
A1 González Montelongo, Cristina
A1 Pérez Reyes, Carolina
A1 Rodríguez Sabina, Samuel
A1 López-Cabeza, Rocío
A1 Giménez Mariño, Cristina
A1 Jiménez-Díaz, Ignacio A.
A1 Cabrera Pérez, Raimundo Manuel
A1 Bazzochi, Isabel L.
A2 BotánicaEcología y Fisiología Vegetal
K1 plant extracts
K1 natural fungicides
K1 phytopathogenic fungi
K1 pest control
AB Phytopathogens are responsible for great losses in agriculture. In particular, Fusarium, Alternaria and Botrytis are fungal diseases that affect crops worldwide. In the search for eco-friendly solutions to pest control, plants and their chemo-biodiversity are promising sources of biopesticides for integrated pest management. The aim of the present study is to report the evaluation of sixteen plant species from the Canary Islands Archipelago against the phytopathogenic fungi Botrytis cinerea, Fusarium oxysporum, and Alternaria alternata. The plants were selected on the basis of their traditional uses in medicine and/or pest control, as well as on scientific studies reporting their uses in crop protection. Their growth inhibition (% I), in an in vitro test-assay on mycelium, was used to identify six ethanolic plant extracts displaying activity (% I > 30% at 1 mg/mL) against at least one of the assayed fungi. The most effective plant extracts were further fractionated by liquid–liquid partition, using solvents of increasing polarity. This procedure led to an improvement of the bioactivity against the phytopathogens, even affecting the hexane fraction from S. canariensis and achieving an 83.93% of growth inhibition at 0.5 mg/mL on B. cinerea. These findings identified five plant-derived extracts as potential candidates for the future development of new biofungicides, which could be applied in integrated pest management.
YR 2022
FD 2022
LK http://riull.ull.es/xmlui/handle/915/35705
UL http://riull.ull.es/xmlui/handle/915/35705
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 20-may-2024