Antifungal Nanoformulation for Biocontrol of Tomato Root and Crown Rot Caused by <i>Fusarium oxysporum</i> f. sp. <i>radicis</i>-<i>lycopersici</i>
Ricardo Aravena,
Ximena Besoain,
Natalia Riquelme,
Aldo Salinas,
Miryam Valenzuela,
Eduardo Oyanedel,
Wilson Barros,
Yusser Olguin,
Alejandro Madrid,
Matias Alvear,
Iván Montenegro
Affiliations
Ricardo Aravena
Escuela de Agronomia, Facultad de Ciencias Agronomicas y de los Alimentos, Pontificia Universidad Catolica de Valparaiso, San Francisco s/n La Palma, Quillota 2260000, Chile
Ximena Besoain
Escuela de Agronomia, Facultad de Ciencias Agronomicas y de los Alimentos, Pontificia Universidad Catolica de Valparaiso, San Francisco s/n La Palma, Quillota 2260000, Chile
Natalia Riquelme
Escuela de Agronomia, Facultad de Ciencias Agronomicas y de los Alimentos, Pontificia Universidad Catolica de Valparaiso, San Francisco s/n La Palma, Quillota 2260000, Chile
Aldo Salinas
Escuela de Agronomia, Facultad de Ciencias Agronomicas y de los Alimentos, Pontificia Universidad Catolica de Valparaiso, San Francisco s/n La Palma, Quillota 2260000, Chile
Miryam Valenzuela
Molecular Microbiology and Environmental Biotechnology Laboratory, Department of Chemistry & Center of Biotechnology Dr. Daniel Alkalay Lowitt, Universidad Tecnica Federico Santa Maria, Avda. España 1680, Valparaiso 2390123, Chile
Eduardo Oyanedel
Escuela de Agronomia, Facultad de Ciencias Agronomicas y de los Alimentos, Pontificia Universidad Catolica de Valparaiso, San Francisco s/n La Palma, Quillota 2260000, Chile
Wilson Barros
Escuela de Agronomia, Facultad de Ciencias Agronomicas y de los Alimentos, Pontificia Universidad Catolica de Valparaiso, San Francisco s/n La Palma, Quillota 2260000, Chile
Yusser Olguin
Centro Cientifico Tecnologico de Valparaiso—CCTVaL, Universidad Tecnica Federico Santa Maria, Avenida España 1680, Valparaiso 2340000, Chile
Alejandro Madrid
Laboratorio de Productos Naturales y Sintesis Organica—LPNSO, Departamento de Quimica, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Avda. Leopoldo Carvallo 270, Playa Ancha, Valparaiso 2340000, Chile
Matias Alvear
Laboratory of Industrial Chemistry, Process Chemistry Centre, Abo Akademi University, Biskopsgatan 8, 20500 Turku/Abo, Finland
Iván Montenegro
Escuela de Obstetricia y Puericultura, Facultad de Medicina, Universidad de Valparaiso, Angamos 655, Reñaca, Vina del Mar 2520000, Chile
Tomatoes (Solanum lycopersicum L.) are the most cultivated and important vegetable crop in the world. These plants can wilt during crop growth due to fusarium wilt (fusariosis), a disease that damages tomato vascular systems. The Fusarium isolated and analyzed in this work correspond to Fusarium oxysporum f. sp. radicis-lycopersici. The isolates were molecularly identified, and analysis was done on the in vitro effects of the nanoemulsions (previously obtained from extracts of Chilean medicinal plants of the genera Psoralea and Escallonia) to inhibit mycelial and conidial germination of the isolates. Subsequently, the nanoemulsions were evaluated under greenhouse conditions for preventive control of fusariosis in the root and crown, with high levels of disease control observed using the highest concentrations of these nanoemulsions, at 250 and 500 ppm.