{"id":75191,"date":"2018-03-09T23:20:23","date_gmt":"2018-03-09T23:20:23","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/bases-bioqua%c2%admiques-de-resista%c2%a8ncia-a-penicillium-expansum-en-poma-bases-bioqua%c2%admicas-de-resistencia-a-penicillium-expansum-en-manzana\/"},"modified":"2018-03-09T23:20:23","modified_gmt":"2018-03-09T23:20:23","slug":"bases-bioqua%c2%admiques-de-resista%c2%a8ncia-a-penicillium-expansum-en-poma-bases-bioqua%c2%admicas-de-resistencia-a-penicillium-expansum-en-manzana","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/bases-bioqua%c2%admiques-de-resista%c2%a8ncia-a-penicillium-expansum-en-poma-bases-bioqua%c2%admicas-de-resistencia-a-penicillium-expansum-en-manzana\/","title":{"rendered":"Bases bioqu\u00edmiques de resist\u00e9ncia a penicillium expansum en poma bases bioqu\u00edmicas de resistencia a penicillium expansum en manzana"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Valentines I Escol\u00c1\u00a0 Mar\u00eda  Carme <\/strong><\/h2>\n<p>El principal objetivo de la presente tesis era el estudio de los mecanismos bioqu\u00edmicos que determinan la resistencia de las manzanas contra un ataque por penicillium expansum. Los diversos estudios se centraron en determinar el papel que el per\u00f3xido de hidr\u00f3geno juega en la resistencia, directamente o como inductor de otros procesos tambi\u00e9n involucrados en la resistencia de los frutos, como es la lignificaci\u00f3n. Se estudiaron tambi\u00e9n las posibles relaciones entre la capacidad de empardecimiento enzim\u00e1tico del fruto y la resistencia. Por otro lado, y con los objetivos de comprobar los resultados obtenidos en fruto entero y de establecer un modelo de interpretaci\u00f3n, se utiliz\u00f3 el cultivo celular de manzana. Todos estos estudios ten\u00edan como finalidad determinar los mecanismos bioqu\u00edmicos clave involucrados en la resistencia a p. Expansum y proponer un marcador de susceptibilidad de las manzanas.  los resultados presentados en esta tesis demuestran la participaci\u00f3n del per\u00f3xido de hidr\u00f3geno en la resistencia, ya que se observaba una acumulaci\u00f3n de este compuesto en frutos en respuesta al ataque f\u00fangico. Esta acumulaci\u00f3n se daba en frutos inmaduros (frutos resistentes), pero no en frutos maduros (frutos sensibles). En frutos enteros, la generaci\u00f3n de per\u00f3xido de hidr\u00f3geno estaba determinada por un incremento de actividad de la enzima super\u00f3xido dismutasa (sod) y una disminuci\u00f3n de las enzimas involucradas en la degradaci\u00f3n del per\u00f3xido de hidr\u00f3geno, especialemente de la peroxidasa (pox).  los resultados obtenidos en el modelo in vitro confirman la intervenci\u00f3n del per\u00f3xido de hidr\u00f3geno en el proceso de resistencia seg\u00fan un modelo de interacci\u00f3n tipo compatible. En este modelo, la acumulaci\u00f3n del per\u00f3xido de hidr\u00f3geno estaba principalmente determinada por la acci\u00f3n de la enzima nadph oxidasa, mientras que las otras enzimas (sod, cat y pox) eran secundarias. cuando el cultivo celular de manzana se inoculaba con<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Bases bioqu\u00edmiques de resist\u00e9ncia a penicillium expansum en poma bases bioqu\u00edmicas de resistencia a penicillium expansum en manzana<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Bases bioqu\u00edmiques de resist\u00e9ncia a penicillium expansum en poma bases bioqu\u00edmicas de resistencia a penicillium expansum en manzana <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Valentines I Escol\u00c1\u00a0 Mar\u00eda  Carme <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Lleida<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/06\/2005<\/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>Christian Larrigaudi\u00e9re<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jordi (secretario) Graell sarl\u00e9 <\/li>\n<li>inmaculada Recasens guinJuan (vocal)<\/li>\n<li>jean claude Pech (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Valentines I Escol\u00c1\u00a0 Mar\u00eda Carme El principal objetivo de la presente tesis era el estudio de los [&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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