{"id":54949,"date":"2006-06-10T00:00:00","date_gmt":"2006-06-10T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-de-la-expresion-del-factor-de-splicing-srl1-de-arabidopsis-thaliana-implicado-en-mecanismos-de-tolerancia-a-estres-salino\/"},"modified":"2006-06-10T00:00:00","modified_gmt":"2006-06-10T00:00:00","slug":"analisis-de-la-expresion-del-factor-de-splicing-srl1-de-arabidopsis-thaliana-implicado-en-mecanismos-de-tolerancia-a-estres-salino","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/politecnica-de-valencia\/analisis-de-la-expresion-del-factor-de-splicing-srl1-de-arabidopsis-thaliana-implicado-en-mecanismos-de-tolerancia-a-estres-salino\/","title":{"rendered":"An\u00e1lisis de la expresi\u00f3n del factor de splicing srl1 de arabidopsis thaliana implicado en mecanismos de tolerancia a estr\u00e9s salino"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Lucrecia Catalina Bourgon Baquedano <\/strong><\/h2>\n<p>Previamente en nuestro laboratorio y como resultado del screening funcional de una biblioteca de cdna de arabidopsis, se aisl\u00f3 el cdna correspondiente al gen srl1 por el fenotipo de tolerancia a sal que confer\u00eda su expresi\u00f3n en la levadura saccharomyces cerevisiae. La prote\u00edna codificada en dicho cdna parec\u00eda estar implicada en el procesamiento del pre-mrna. Ello supon\u00eda una novedosa relaci\u00f3n entre la tolerancia a sal de las c\u00e9lulas ecuari\u00f3ticas y un proceso de gran importancia en el metabolismo celular como es el procesamiento del pre-mrna. el objetivo de la presente tesis doctoral se ha centrado en el an\u00e1lisis bioqu\u00edmico y funcional de srl1 y en el estudio del mecanismo de inhibici\u00f3n del splicing en presencia de sal. Para ello se llev\u00f3 a cabo el estudio de expresi\u00f3n del gen srl1 en plantas de arabidopsis thaliana sometidas a diferentes condiciones de estr\u00e9s.  estos estudios indicaron que dicho gen era activado transcripcionalmente en condiciones de estr\u00e9s salino, temperaturas altas y bajas, estr\u00e9s h\u00eddrico y tratamiento con \u00e1cido absc\u00edsico. De forma complementaria el estudio bioinform\u00e1tico de las secuencias promotoras del gen srl1 indic\u00f3 la presencia en las mismas de secuencias hom\u00f3logas a las existentes en otros genes cuya expresi\u00f3n se activaba en las mismas condiciones de estr\u00e9s. por otra parte, en el estudio cuantitativo del fenotipo de tolerancia a sal y a sequ\u00eda en plantas transg\u00e9nicas de arabidopsis que sobreexpresaban srl1, se observ\u00f3 que las plantas transg\u00e9nicas obten\u00edan un mayor desarrollo tanto vegetativo como reproductivo en comparaci\u00f3n con las no transformadas para las condiciones de estr\u00e9s ensayadas. mediante la t\u00e9cnica de rt-pcr modificada, obtuvimos la confirmaci\u00f3n de que el procesamiento de los intrones o splicing constitu\u00eda una diana de toxicidad de la sal tanto en planta como en levadura. Del mismo modo observamos que en plantas las sobreexpresi\u00f3n de srl1 consegu\u00eda contrarrestar dicha inhibici\u00f3n. el emple<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>An\u00e1lisis de la expresi\u00f3n del factor de splicing srl1 de arabidopsis thaliana implicado en mecanismos de tolerancia a estr\u00e9s salino<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 An\u00e1lisis de la expresi\u00f3n del factor de splicing srl1 de arabidopsis thaliana implicado en mecanismos de tolerancia a estr\u00e9s salino <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Lucrecia Catalina Bourgon Baquedano <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 06\/10\/2006<\/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>Oscar Vicente Meana<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: vicente Conejero tom\u00e1s <\/li>\n<li>vicente Pall\u00e1s benet (vocal)<\/li>\n<li>Manuel Tal\u00f3n cubillo (vocal)<\/li>\n<li>pilar Sanchez  testillano (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Lucrecia Catalina Bourgon Baquedano Previamente en nuestro laboratorio y como resultado del screening funcional de una biblioteca [&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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