{"id":73348,"date":"2018-03-09T23:18:15","date_gmt":"2018-03-09T23:18:15","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/aspectos-bioqua%c2%admicos-y-moleculares-del-enraizamiento-in-vitro-de-brotes-con-caracteristicas-juveniles-y-adultas-de-quercus-robur-l\/"},"modified":"2018-03-09T23:18:15","modified_gmt":"2018-03-09T23:18:15","slug":"aspectos-bioqua%c2%admicos-y-moleculares-del-enraizamiento-in-vitro-de-brotes-con-caracteristicas-juveniles-y-adultas-de-quercus-robur-l","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/aspectos-bioqua%c2%admicos-y-moleculares-del-enraizamiento-in-vitro-de-brotes-con-caracteristicas-juveniles-y-adultas-de-quercus-robur-l\/","title":{"rendered":"Aspectos bioqu\u00edmicos y moleculares del enraizamiento in vitro de brotes con caracteristicas juveniles y adultas de quercus robur l."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Gregorio Arellano Ostoa <\/strong><\/h2>\n<p>El objetivo general de esta tesis consiste en determinar los posibles cambios a nivel bioqu\u00edmico y molecular que puedan estar relacionados con la p\u00e9rdida de la capacidad de enraizamiento que se produce en el material adulto de roble (quercus robur l.). Para ello se utilizan cultivos in vitro de brotes de dos l\u00edneas de roble de diferente estado ontogen\u00e9tico; una derivada de renuevos basales, de car\u00e1cter juvenil y que presenta altas tasas de enraizamiento y otra derivada de ramas de la copa, con car\u00e1cter adulto y con baja o nula capacidad de formaci\u00f3n de ra\u00edces adventicias. Ambas l\u00edneas son del mismo genotipo ya que que proceden de un mismo esp\u00e9cimen de 300 a\u00f1os de edad.  los an\u00e1lisis realizados han sido:  a,- la evaluaci\u00f3n de las principales caracter\u00edsticas morfol\u00f3gicas y fisiol\u00f3gicas que distinguen los dos tipos de material al final de la fase de multiplicaci\u00f3n.  b,- la cuantificaci\u00f3n de los niveles end\u00f3genos de auxinas (aia, \u00e1cido indol-3-ac\u00e9tico, y aia-asp, \u00e1cido indol-3-acetil-asp\u00e1rtico) durante los primeros 8 d\u00edas del proceso de enraizamiento inducido con \u00e1cido indol-3-but\u00edrico (aib) as\u00ed como la evaluaci\u00f3n del efecto del npa (\u00e1cido naftil-p-tal\u00e1mico) sobre el enraizamiento y sobre los niveles end\u00f3genos de auxinas.  c,- el an\u00e1lisis de los niveles de expresi\u00f3n durante el enraizamiento de un cdna (qrcpe) identificado en roble y que se expresa preferentemente en cultivos de material adulto. Estudio del efecto del npa sobre los niveles de expresi\u00f3n.  los resultados obtenidos indican que en este clon de roble pueden utilizarse diferentes par\u00e1metros morfol\u00f3gicos referidos al tallo y las hojas como marcadores asociados al cambio de fase. Adem\u00e1s, la l\u00ednea procedente de renuevos basales presenta mayor n\u00famero de brotes enraizables (mayor 20mm) y elevados porcentajes de enraizamiento mientras que los brotes procedentes de las ramas de la copa no enra\u00edzan. Estas caracter\u00edsticas fisiol\u00f3gicas se han mant<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Aspectos bioqu\u00edmicos y moleculares del enraizamiento in vitro de brotes con caracteristicas juveniles y adultas de quercus robur l.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Aspectos bioqu\u00edmicos y moleculares del enraizamiento in vitro de brotes con caracteristicas juveniles y adultas de quercus robur l. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Gregorio Arellano Ostoa <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 30\/03\/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>Ana Mar\u00eda Vi\u00e9itez Mart\u00edn<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Ballester alvarez pardi\u00f1as Antonio <\/li>\n<li> Fernandez lorenzo Juan  Luis (vocal)<\/li>\n<li>carmen Diaz sala (vocal)<\/li>\n<li> Vieitez madri\u00f1an Mar\u00eda  Luisa (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Gregorio Arellano Ostoa El objetivo general de esta tesis consiste en determinar los posibles cambios a nivel [&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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