Katya Vasileva, Zhana Ivanova-Doneva and Veneta Stoeva
Agricultural Academy, Maritsa Vegetable Crops Research Institute, 4003 Plovdiv, Bulgaria
Vasileva, K., Ivanova-Doneva, Zh. & Stoeva, V. (2024). Study of the antifungal effect of nanoparticles of metals and metal oxides on Fusarium oxysporum f. sp. lycopersici. Bulg. J. Agric. Sci., 30(5), 821–827
Fusarium wilt is a systemic disease, as the fungus spreads inside the infected plant. The aim of this research is to investigate the antifungal effect of different metal ions on restricting the Fusarium mycelia growth.
The pathogenicity test of all isolates was confirmed on tomato variety Ideal. The isolates from Fusarium oxysporum f. sp. lycopersici were identified with a polymerase chain reaction (PCR)-based technique.
The inhibiting effect of iron oxide (Gamma high purity 99.55%, size 18 nm), iron purity 99.55% (size 60–70 nm), iron purity 99.55% (size 790 nm), zinc (high purity 99.55%, size 60–70 nm), zinc purity 99.55% (size 790 nm), zinc oxide (purity 99.99%, size 18 nm), magnesium micron powder (purity 99.95%, size 35 µm), magnesium oxide (purity 99.95%, size 18 nm) on the mycelium growth of the Fusarium oxysporum f. sp. lycopersici was tested. The nanoparticles which demonstrate the highest restriction level on the mycelia growth of Fusarium isolates in the 3 different concentrations were zinc (high purity 99.55%, size 60-70 nm).