RT info:eu-repo/semantics/article
T1 Antifungal Potential of Canarian Plant Extracts against High-Risk Phytopathogens
A1 Reyes, Carolina P.
A1 Rodríguez Sabina, Samuel
A1 López Cabeza, Rocío
A1 González Montelongo, Cristina
A1 Giménez, Cristina
A1 Jiménez Díaz, Ignacio Antonio
A1 Cabrera, Raimundo
A1 López Bazzocchi, Isabel
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-friendlysolutions to pest control, plants and their chemo-biodiversity are promising sources of biopesticidesfor integrated pest management. The aim of the present study is to report the evaluation of sixteenplant 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 traditionaluses in medicine and/or pest control, as well as on scientific studies reporting their uses in cropprotection. Their growth inhibition (% I), in an in vitro test-assay on mycelium, was used to identifysix ethanolic plant extracts displaying activity (% I > 30% at 1 mg/mL) against at least one of theassayed 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 againstthe phytopathogens, even affecting the hexane fraction from S. canariensis and achieving an 83.93% ofgrowth inhibition at 0.5 mg/mL on B. cinerea. These findings identified five plant-derived extracts aspotential candidates for the future development of new biofungicides, which could be applied inintegrated pest management.
YR 2022
FD 2022
LK http://riull.ull.es/xmlui/handle/915/35930
UL http://riull.ull.es/xmlui/handle/915/35930
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 10-may-2024