{"id":41980,"date":"1999-01-01T00:00:00","date_gmt":"1999-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/actividad-y-modo-de-accion-de-productos-de-trichilia-havanensis-jacq-y-scutellaria-alpina-subsp-javalambrensis-sobre-leptinotarsa-decenlineata-y-spodoptera-exigua\/"},"modified":"1999-01-01T00:00:00","modified_gmt":"1999-01-01T00:00:00","slug":"actividad-y-modo-de-accion-de-productos-de-trichilia-havanensis-jacq-y-scutellaria-alpina-subsp-javalambrensis-sobre-leptinotarsa-decenlineata-y-spodoptera-exigua","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-agrarias\/actividad-y-modo-de-accion-de-productos-de-trichilia-havanensis-jacq-y-scutellaria-alpina-subsp-javalambrensis-sobre-leptinotarsa-decenlineata-y-spodoptera-exigua\/","title":{"rendered":"Actividad y modo de accion de productos de trichilia havanensis jacq. y scutellaria alpina subsp. javalambrensis sobre leptinotarsa decenlineata y spodoptera exigua."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jes\u00fas Lopez Olguin <\/strong><\/h2>\n<p>Mediante ensayos de preferencia y de no-preferencia con discos foliares, se evalu\u00f3 la actividad de extractos del fruto de trichilia havanensis (meliaceae) y de un extracto acet\u00f3nico de la parte a\u00e9rea de scutellaria alpina subsp. Javalambrensis (labiatae) frente a larvas de leptinotarsa decemlineata y spodoptera exigua.  el fraccionamiento dirigido de los extractos activos de t. Havanensis permiti\u00f3 la identificaci\u00f3n de tres limonoides: azadirona, o-acetiltrichilenona y 1,7-di-o-acetilhavanensina. Las fracciones de t. Havanensis formadas por dos limonoides: f17(1,7-di-o-acetilhavanensina + 1,7-di-o-acetil-14,15-desoxihavanensina), f18(1,7-di-o-acetilhavanensina+3,7-di-o-acetilhavanensina) y la fracci\u00f3n f31 (mezcla de limonoides), fueron m\u00e1s activas contra l, decemlineata y s. Exigua que los correspondientes compuestos puros, lo que sugiere un efecto sin\u00e9rgico en las mezclas. Los \u00edndices nutricionales en periodos de tratamiento y post-tratamiento muestran que los productos de t. Havanensis tienen un modo de acci\u00f3n t\u00f3xico en ambas especies de insectos.  un extracto acet\u00f3nico de s. Alpina subsp. javalambrensis fue un potente disuasorio de la alimentaci\u00f3n para larvas de l. Decemlineata y las scutalpinas b e i aisladas de este extracto, redujeron significativamente la tasa de consumo de alimento, la tasa de incremento de peso y la eficiencia del crecimiento de las larvas incluso a 100 ppm. La comparaci\u00f3n de los \u00edndices nutricionales en periodos de tratamiento y post-tratamiento mostr\u00f3 que la scutalpina i tiene un modo de acci\u00f3n t\u00f3xico, mientras que la scutalpina b actu\u00f3 por antixenosis.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Actividad y modo de accion de productos de trichilia havanensis jacq. y scutellaria alpina subsp. javalambrensis sobre leptinotarsa decenlineata y spodoptera exigua.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Actividad y modo de accion de productos de trichilia havanensis jacq. y scutellaria alpina subsp. javalambrensis sobre leptinotarsa decenlineata y spodoptera exigua. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jes\u00fas Lopez Olguin <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1999<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Pedro Casta\u00f1era Dominguez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: manuel Arroyo varela <\/li>\n<li>f\u00e9lix Ortego alonso (vocal)<\/li>\n<li>benjam\u00edn Rodr\u00edguez gonz\u00e1lez (vocal)<\/li>\n<li>vicente Marco mancebon (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jes\u00fas Lopez Olguin Mediante ensayos de preferencia y de no-preferencia con discos foliares, se evalu\u00f3 la actividad [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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