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Article

Evaluation of the Physicochemical Properties of Chitosans in Inducing the Defense Response of Coffea arabica against the Fungus Hemileia vastatrix

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Biotecnología Vegetal, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco AC., Camino Arenero 1227, El Bajío, Zapopan 45019, Mexico
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Tecnología Alimentaria, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco AC., Camino Arenero 1227, El Bajío, Zapopan 45019, Mexico
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Biotecnología Vegetal, CONACYT-Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco AC., Zapopan 45019, Mexico
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Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, General Ramón Corona 2514, Nuevo México, Zapopan 45201, Mexico
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Instituto Tecnológico de Tlajomulco/TecNM, Km. 10 Carretera Tlajomulco-San Miguel Cuyutlán, Tlajomulco de Zúñiga 45640, Mexico
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Author to whom correspondence should be addressed.
Academic Editors: Jesus Valcarcel and Carolina Hermida Merino
Polymers 2021, 13(12), 1940; https://doi.org/10.3390/polym13121940
Received: 30 April 2021 / Revised: 28 May 2021 / Accepted: 4 June 2021 / Published: 11 June 2021
(This article belongs to the Special Issue Marine Biomolecules from Food By-Products: Chitosan and Gelatine)
Chitosan is a natural polymer, and its biological properties depend on factors such as the degree of deacetylation and polymerization, viscosity, molecular mass, and dissociation constant. Chitosan has multiple advantages: it is biodegradable, biocompatible, safe, inexpensive, and non-toxic. Due to these characteristics, it has a wide range of applications. In agriculture, one of the most promising properties of chitosan is as an elicitor in plant defense against pathogenic microorganisms. In this work, four kinds of chitosan (practical grade, low molecular weight, medium molecular weight, and high-density commercial food grade) were used in concentrations of 0.01 and 0.05% to evaluate its protective effect against coffee rust. The best treatment was chosen to evaluate the defense response in coffee plants. The results showed a protective effect using practical-grade and commercial food-grade chitosan. In addition, the activity of enzymes with β-1,3 glucanase and peroxidase was induced, and an increase in the amount of phenolic compounds was observed in plants treated with high-molecular-weight chitosan at 0.05%; therefore, chitosan can be considered an effective molecule for controlling coffee rust. View Full-Text
Keywords: chitosan coffee rust; biopolymer; phenolic compounds elicitor; protection chitosan coffee rust; biopolymer; phenolic compounds elicitor; protection
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MDPI and ACS Style

López-Velázquez, J.C.; Haro-González, J.N.; García-Morales, S.; Espinosa-Andrews, H.; Navarro-López, D.E.; Montero-Cortés, M.I.; Qui-Zapata, J.A. Evaluation of the Physicochemical Properties of Chitosans in Inducing the Defense Response of Coffea arabica against the Fungus Hemileia vastatrix. Polymers 2021, 13, 1940. https://doi.org/10.3390/polym13121940

AMA Style

López-Velázquez JC, Haro-González JN, García-Morales S, Espinosa-Andrews H, Navarro-López DE, Montero-Cortés MI, Qui-Zapata JA. Evaluation of the Physicochemical Properties of Chitosans in Inducing the Defense Response of Coffea arabica against the Fungus Hemileia vastatrix. Polymers. 2021; 13(12):1940. https://doi.org/10.3390/polym13121940

Chicago/Turabian Style

López-Velázquez, Julio C.; Haro-González, José N.; García-Morales, Soledad; Espinosa-Andrews, Hugo; Navarro-López, Diego E.; Montero-Cortés, Mayra I.; Qui-Zapata, Joaquín A. 2021. "Evaluation of the Physicochemical Properties of Chitosans in Inducing the Defense Response of Coffea arabica against the Fungus Hemileia vastatrix" Polymers 13, no. 12: 1940. https://doi.org/10.3390/polym13121940

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