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      Cuantificación de la actividad específica de lectina en teosinte Zea diploperennis Translated title: Quantification of specific lectin activity in teosinte Zea diploperennis

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          Abstract

          Resumen Objetivo Evaluar la actividad específica de lectina en teosinte Zea diploperennis sano e infectado con Ustilago maydis. Materiales y métodos-. Plántulas de Zea diploperennis de 6 días de crecimiento fueron inoculadas con Ustilago maydis. Se evaluó la concentración de proteínas totales y la actividad hemaglutinante de extractos crudos de teosinte sano e infectado en placas de microtitulación con eritrocitos tipo O al 3% siguiendo la técnica de diluciones dobles seriadas durante 6 días. Resultados. La concentración de proteínas totales se incrementa en coleoptilo sano durante cada día de su crecimiento. No así en teosinte infectado donde la curva presenta una tendencia a la baja desde el momento de la inoculación. La actividad específica de lectina disminuye en ambos casos desde el primer día de cuantificación. Conclusiones. La evidente reducción en la actividad de lectina en teosinte infectado en comparación con teosinte sano podría explicar la susceptibilidad de este teosinte a dicho fitopatógeno. Si bien, la participación de las lectinas de teosinte y maíz en el mecanismo de defensa a Ustilago maydis todavía no ha sido esclarecida, los resultados obtenidos contribuyen a la comprensión del efecto que puede tener la concentración de lectina y proteína sobre la resistencia en teosinte.

          Translated abstract

          Abstract Objective To evaluate the specific activity of lectin in healthy and infected teosinte Zea diploperennis with Ustilago maydis. Materials and methods. Zea diploperennis seedlings of 6 days of growth were inoculated with Ustilago maydis. Total protein concentration and hemagglutinating activity of crude extracts of healthy and infected teosinte were evaluated in microtiter plates with 3% type O red cells following the technique of serial double dilutions for 6 days. Results. The concentration of total proteins increases in healthy coleoptile during each day of its growth. Not so in infected teosinte where the curve shows a downward trend from the moment of inoculation. The specific lectin activity decreases in both cases from the first day of quantification. Conclusions. The evident reduction in lectin activity in infected teosinte compared to healthy teosinte could explain the susceptibility of this teosinte to said phytopathogen. Although the participation of the teosinte and corn lectins in the defense mechanism against Ustilago maydis has not yet been clarified, the results obtained contribute to the understanding of the effect that the concentration of lectin and protein can have on resistance in teosinte.

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          A Rapid and Sensitive Method for the Quantitation of Microgram Quantities of Protein Utilizing the Principle of Protein-Dye Binding

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            What should be called a lectin?

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              Taxonomy of Zea (Gramineae). II. Subspecific Categories in the Zea Mays Complex and a Generic Synopsis

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                Author and article information

                Journal
                jonnpr
                Journal of Negative and No Positive Results
                JONNPR
                Research and Science S.L. (Madrid, Madrid, Spain )
                2529-850X
                2021
                : 6
                : 7
                : 941-950
                Affiliations
                [1] Oaxaca de Juárez Oaxaca orgnameInstituto Tecnológico de Oaxaca orgdiv1Unidad de Bioquímica e Inmunología, Tecnológico Nacional de México Mexico
                [2] Oaxaca de Juárez Oaxaca orgnameUniversidad Autónoma “Benito Juárez” de Oaxaca orgdiv1Facultad de Medicina y Cirugía orgdiv2Centro de Investigación Facultad de Medicina UNAM-UABJO México
                [4] Oaxaca de Juárez Oaxaca orgnameInstituto Tecnológico de Oaxaca orgdiv1Departamento de Ingeniería Química y Bioquímica orgdiv2Laboratorio de Alimentos Mexico
                [3] Oaxaca orgnameUniversidad de la Sierra Sur, Miahuatlán de Porfirio Díaz orgdiv1Instituto de Nutrición México
                [5] Oaxaca de Juárez Oaxaca orgnameLaboratorio de Patología Clínica “Dr. Eduardo Pérez Ortega” México
                Article
                S2529-850X2021000700941 S2529-850X(21)00600700941
                10.19230/jonnpr.3860
                03384141-640c-4c93-b38e-63ac706fddaa

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 10 July 2020
                : 05 February 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 11, Pages: 10
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                SciELO Spain

                Categories
                Original

                proteína total,Actividad de lectina,Zea diploperennis,Ustilago maydis,Lectin activity,total protein

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