{"id":26440,"date":"2018-03-09T09:18:16","date_gmt":"2018-03-09T09:18:16","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/caracterizacion-molecular-de-la-perdida-del-poder-patogeno-en-agrobacterium-tumefaciens\/"},"modified":"2018-03-09T09:18:16","modified_gmt":"2018-03-09T09:18:16","slug":"caracterizacion-molecular-de-la-perdida-del-poder-patogeno-en-agrobacterium-tumefaciens","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/caracterizacion-molecular-de-la-perdida-del-poder-patogeno-en-agrobacterium-tumefaciens\/","title":{"rendered":"Caracterizaci\u00f3n molecular de la p\u00e9rdida del poder pat\u00f3geno en agrobacterium tumefaciens"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Pablo Fernando Llop P\u00e9rez <\/strong><\/h2>\n<p>Agrobacterium tumefaciens es una bacteria fitopat\u00f3gena causante de tumores en el cuello de muchas especies vegetales de inter\u00e9s econ\u00f3mico, siendo en viveros donde m\u00e1s da\u00f1o produce. Los estudios epidemiol\u00f3gicos y de poblaciones del pat\u00f3geno son poco abundantes. Se ha se\u00f1alado el predominio de cepas no pat\u00f3genas frente a pat\u00f3genas de ambientes donde \u00e9stas \u00faltimas estar\u00edan en ventaja, pero apenas se ha investigado la p\u00e9rdida del poder pat\u00f3geno en tumores.  se pretende ampliar el estudio de este fen\u00f3meno en diversas cepas y en diversos hu\u00e9spedes, para comprobar si se presenta en la mayor\u00eda de cepas y existen interacciones con las plantas.  en primer lugar, se ha puesto a punto un m\u00e9todo de identificaci\u00f3n de cepas a.Tumefaciens, por medio de rapds con indicadores inespec\u00edficos, y se ha comprobado que es eficaz para diferenciar entre las especies del g\u00e9nero.  en segundo lugar, se ha llevado a cabo inoculaciones en diversos hu\u00e9spedes, y de los tumores producidos, se anularon colonias de las que se ha estudiado el fenotipo pat\u00f3geno, para comprobar la frecuencia de aparici\u00f3n de este fen\u00f3meno y los cambios moleculares sufridos. Tambi\u00e9n se ha llevado a cabo experimentos in vitro mediante siembras sucesivas en un medio general para ver si la p\u00e9rdida del poder pat\u00f3geno se reproduce de forma espont\u00e1nea. el sistema de identificaci\u00f3n mediante rapds ha confirmado que, del an\u00e1lisis de 5.000 colonias no pat\u00f3genas de los aislamientos hechos de tumores, solo 7 se corresponde con la que se hab\u00eda inoculado previamente. El resto eran cepas de agrobacterium, de los que se desconoce su origen. Por tanto, en este trabajo, se comprueba que la p\u00e9rdida del poder pat\u00f3geno, en las condiciones y cepas estudiadas, se produce de forma muy escasa.  la caracterizaci\u00f3n molecular de los mutantes ha mostrado que 6 de 7 presentan cambios en su pl\u00e1smido ti, como inserciones de elementos transponibles o mutaciones puntuales. El caso m\u00e1s ll<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Caracterizaci\u00f3n molecular de la p\u00e9rdida del poder pat\u00f3geno en agrobacterium tumefaciens<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Caracterizaci\u00f3n molecular de la p\u00e9rdida del poder pat\u00f3geno en agrobacterium tumefaciens <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Pablo Fernando Llop P\u00e9rez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Universitat de val\u00e9ncia (estudi general)<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 23\/10\/2003<\/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>Milagros L\u00f3pez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: emilio Montesinos segui <\/li>\n<li>xavier Nesme (vocal)<\/li>\n<li>Jaime Cubero dabrio (vocal)<\/li>\n<li>leandro Pe\u00f1a garcia (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Pablo Fernando Llop P\u00e9rez Agrobacterium tumefaciens es una bacteria fitopat\u00f3gena causante de tumores en el cuello de [&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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