{"id":75485,"date":"2005-07-07T00:00:00","date_gmt":"2005-07-07T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/diseccion-genetica-del-mecanismo-de-resistencia-frente-a-patogenos-biotrofos-mediado-por-el-gen-csb3-en-arabidopsis-thaliana\/"},"modified":"2005-07-07T00:00:00","modified_gmt":"2005-07-07T00:00:00","slug":"diseccion-genetica-del-mecanismo-de-resistencia-frente-a-patogenos-biotrofos-mediado-por-el-gen-csb3-en-arabidopsis-thaliana","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/diseccion-genetica-del-mecanismo-de-resistencia-frente-a-patogenos-biotrofos-mediado-por-el-gen-csb3-en-arabidopsis-thaliana\/","title":{"rendered":"Disecci\u00f3n gen\u00e9tica del mecanismo de resistencia frente a pat\u00f3genos biotrofos mediado por el gen csb3 en arabidopsis thaliana"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Gil Morri\u00f3 Mar\u00eda Jos\u00e9 <\/strong><\/h2>\n<p>La comprensi\u00f3n de los mecanismos moleculares que controlan la resistencia de la planta frente a pat\u00f3genos biotrofos es un campo de investigaci\u00f3n complejo y en expansi\u00f3n donde se impone la identificaci\u00f3n de nuevos reguladores. previamente se hab\u00eda descrito en nuestro laboratorio el gen p69c que codifica una proteasa con homolog\u00eda a subtilisinas  y cuya expresi\u00f3n se induce en el transcurso de la interacci\u00f3n planta-pat\u00f3geno.  Con el fin de estudiar nuevos componentes de la planta implicados en la se\u00f1alizaci\u00f3n de la respuesta defensiva, se procedi\u00f3 al escrutinio de mutantes de arabidopsis thaliana que de forma constitutiva y sin la existencia de ning\u00fan est\u00edmulo externo se encontrara activada la expresi\u00f3n del gen gus dirigida por el promotor p69c.  En la presente memoria de tesis se describe ampliamente la identificaci\u00f3n y caracterizaci\u00f3n del mutante, csb3 (constitutive subtilisin3).  Las plantas csb3 poseen elevados niveles de \u00e1cido salic\u00edlico (sa) y adem\u00e1s expresan genes dependientes de la ruta de sa tales como pr-1, pr-2 y gst6.  Por otra parte, el mutante csb3 exhibe una elevada resistencia al oomiceto pat\u00f3geno hyaloperonospora parasitica de naturaleza biotrofa y a la bacteria pat\u00f3gena tambi\u00e9n  biotrofa pseudomonas syringae pv.Tomato dc3000 (pst) dc3000.  Sin embargo, la resistencia a pat\u00f3genos necrotrofos tales como botrytis cinerea y plectosphaerella cucumerina permanece inalterada en las plantas csb3.  Para analizar la participaci\u00f3n de los distintos componentes de la ruta de se\u00f1alizaci\u00f3n dependiente de sa en la manifestaci\u00f3n del fenotipo de resistencia de csb3, se procedi\u00f3 al an\u00e1lisis epist\u00e1tico entre csb3 y pad4, sid2, eds5, nahg, npr1, dth9 y cpr1.  Estos estudios indican que la elevada resistencia frente a pat\u00f3genos biotrofos de las plantas csb3 requiere de todos y cada uno de los componentes de la ruta de se\u00f1alizaci\u00f3n dependiente del sa estudiados. El gen csb3 identificado por clonaje posicional cod<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Disecci\u00f3n gen\u00e9tica del mecanismo de resistencia frente a pat\u00f3genos biotrofos mediado por el gen csb3 en arabidopsis thaliana<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Disecci\u00f3n gen\u00e9tica del mecanismo de resistencia frente a pat\u00f3genos biotrofos mediado por el gen csb3 en arabidopsis thaliana <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Gil Morri\u00f3 Mar\u00eda Jos\u00e9 <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 07\/07\/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>Pablo Vera Vera<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: carmen Castresana fernandez <\/li>\n<li>Jos\u00e9 Leon ramos (vocal)<\/li>\n<li>roberto Solano tavira (vocal)<\/li>\n<li>Manuel Rodriguez concepcion (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Gil Morri\u00f3 Mar\u00eda Jos\u00e9 La comprensi\u00f3n de los mecanismos moleculares que controlan la resistencia de la planta [&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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