Use of inductors in the control of Colletotrichum gloeosporioides and Rhizopus stolonifer isolated from soursop fruits: in vitro tests |
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Authors: | Anelsy Ramos-Guerrero Ramsés Ramón González-Estrada Greta Hanako-Rosas Silvia Bautista-Baños Gustavo Acevedo-Hernández Martin Ernesto Tiznado-Hernández Porfirio Gutiérrez-Martínez |
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Affiliation: | 1.Tecnológico Nacional de México/Instituto Tecnológico de Tepic, Laboratorio Integral de Investigación en Alimentos,Tepic,Mexico;2.Instituto de Ecología, A.C. Unidad de Microscopía BioMimic, Carretera Antigua a Coatepec,Xalapa,Mexico;3.Instituto Politécnico Nacional, Centro de Desarrollo de Productos Bióticos,Yautepec,Mexico;4.Universidad de Guadalajara, Centro Universitario de la Ciénega (CUCIENEGA). Av. Universidad,Ocotlán,Mexico;5.Centro de Investigación en Alimentación y Desarrollo, Dirección de Tecnología de Alimentos de Origen Vegetal,Hermosillo,Mexico |
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Abstract: | Soursop (Annona muricata) is a tropical fruit that can be infected by Colletotrichum gloeosporioides and Rhizopus stolonifer. Traditional methods used for postharvest disease control include the application of fungicides, however due to their excessive use, as well as their persistence in the environment, the development of new strategies that control pathogens are required. The application of chitosan (Chi), salicylic acid (SA) and methyl jasmonate (MJ) is an environmentally-friendly alternative with antimicrobial properties and also induces defense mechanisms in plant tissues. In this study, Colletotrichum was reactivated and Rhizopus was identified using morphological features and molecular tools. In vitro, the application of 0.5 and 1.0% of Chi alone or in combination with SA and MJ decreased mycelial growth and sporulation, a complete inhibition of spore germination was obtained. Thus, the application of Chi in combination with SA and MJ could be a smart strategy to inhibit the development of pathogens that attack soursop fruit. |
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