
handle: 20.500.12759/9406
Las cochinillas harinosas (Hemíptera, Pseudococcidae) son plagas que afectan a la vid. Su difícil control obliga a la búsqueda de soluciones más efectivas incluyendo a los inhibidores de proteasas de plantas (IPPs). De una colección proteínas de plantas endémicas de Perú del laboratorio de Proteómica, Enzimas y Metabolitos Activos de la Universidad Privada Antenor Orrego, se realizó una serie de corridas electroforéticas de SDS-PAGE para visualizar proteínas de bajo peso molecular. En base a estas proteínas, se realizó una revisión en las bases de datos de inhibidores de proteínas para identificar las proteínas candidatas inhibidoras. Se encontró que en la mayoría de las familias de plantas endémicas estudiadas se expresan proteínas con pesos moleculares similares a los inhibidores de proteasas de las bases de datos, siendo una de ellas el inhibidor de la proteína fosfatasa. En el estudio, las familias con el mayor número de proteínas de bajo peso molecular son Fabaceae y Campanulaceae. La presencia del inhibidor de la proteína fosfatasa en las muestras estudiadas nos indican una alta posibilidad de inhibición a la enzima digestiva fosfatasa alcalina de las cochinillas harinosas. Futuros trabajos deben enfatizar el análisis de estas proteínas de bajo peso molecular de Campanulaceae, Asteraceae, Fabaceae y Calceolariaceae
Mealybugs (Hemiptera, Pseudococcidae) are pests that affect the vine. Its difficult control forces the search for more effective solutions including plant protease inhibitors (PPIs). From a collection of proteins from endemic plants of Peru from the Proteomics, Enzymes, and Active Metabolites laboratory of the Antenor Orrego Private University, a series of SDS-PAGE electrophoresis was carried out to visualize low molecular weight proteins. Based on these proteins, a review of protein inhibitor databases was performed to identify candidate inhibitory proteins. It was found that in most of the endemic plant families studied, proteins with molecular weights similar to the protease inhibitors in the databases are expressed, one of them being the protein phosphatase inhibitor. In the study, the families with the highest number of low molecular weight proteins are Fabaceae and Campanulaceae. The presence of the protein phosphatase inhibitor in the studied samples indicates a high possibility of inhibition of the digestive enzyme alkaline phosphatase of mealybugs. Future work should emphasize the analysis of these low molecular weight proteins from Campanulaceae, Asteraceae, Fabaceae, and Calceolariaceae
Tesis
Cochinillas Harinosas, http://purl.org/pe-repo/ocde/ford#4.00.00, Inhibidores de Proteasas
Cochinillas Harinosas, http://purl.org/pe-repo/ocde/ford#4.00.00, Inhibidores de Proteasas
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