{"id":59820,"date":"2007-10-07T00:00:00","date_gmt":"2007-10-07T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/filogenia-de-una-peroxidasa-responsable-de-la-sa%c2%adntesis-de-ligninas-en-plantas-vasculares-terrestres\/"},"modified":"2007-10-07T00:00:00","modified_gmt":"2007-10-07T00:00:00","slug":"filogenia-de-una-peroxidasa-responsable-de-la-sa%c2%adntesis-de-ligninas-en-plantas-vasculares-terrestres","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisiologia-vegetal\/filogenia-de-una-peroxidasa-responsable-de-la-sa%c2%adntesis-de-ligninas-en-plantas-vasculares-terrestres\/","title":{"rendered":"Filogenia de una peroxidasa responsable de la s\u00edntesis de ligninas en plantas vasculares terrestres"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  G\u00f3mez Ros Lauara Vanessa <\/strong><\/h2>\n<p>Desde el punto de vista bot\u00e1nico, el fen\u00f3meno de la lignificaci\u00f3n est\u00e1 asociado con la adquisici\u00f3n de la estructura vascular en las plantas. Los elementos diferenciados del xilema se encuentran revestidos internamente de ligninas, que son heteropol\u00edmeros fen\u00f3licos tridimensionales evalentemente asociados a la matriz polisacar\u00eddica de las paredes celulares. Las ligninas son el resultado dela polimerizaci\u00f3n oxidativa de tres alcoholes p-hidroxicinam\u00edlicos, en una reacci\u00f3n mediada por peroxidasas, que da lugar a un heteropol\u00edmero hidrof\u00f3bico \u00f3pticamente inactivo. De forma general se ha considerado que las peroxidasas son las enzimas principales implicadas en la etapa de polimerizaci\u00f3n de las ligninas en una reacci\u00f3n dependiente de h2o2. Por todo ello, los objetivos de la presente memoria son:     1,- el estudio de los niveles de eor en cultivos celulares de z.Elegans durante la diferenciaci\u00f3n de las c\u00e9lulas del mes\u00f3filo en traqueidas, con la finalidad de determinar si la producci\u00f3n de eor est\u00e1 relacionada con la expresi\u00f3n de la peroxidasa y la lignificaci\u00f3n, lo cual apoyar\u00eda el papel de la peroxidasa en dicho proceso.     2,- el estudio de la composici\u00f3n monom\u00e9rica de las ligninas, el patr\u00f3n del significaci\u00f3n, el patr\u00f3n de localizaci\u00f3n del h2o2, el patr\u00f3n de localizaci\u00f3n de la peroxidasa, y la naturaleza guaiacilo o siringilo de estas peroxidasas en angiospermas y gimnospermas, con el fin de determinar el grado de conservaci\u00f3n de estos caracteres fenot\u00edpicos en plantas con semillas.     3,- el establecimiento a nivel molecular de los caracteres distintivos de las guaiacil-peroxidasas y las siringil-peroxidasas.     4,- la filogenia de las siringil-peroxidasas en plantas terrestres.     5,- el estudio del proteoma extracelular de angiospermas y gimnospermas, con el fin de determinar no solo el grado de conservaci\u00f3n de la peroxidasa, sino tambi\u00e9n el de otras prote\u00ednas que participan en el metabolismo de la pared celular en p<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Filogenia de una peroxidasa responsable de la s\u00edntesis de ligninas en plantas vasculares terrestres<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Filogenia de una peroxidasa responsable de la s\u00edntesis de ligninas en plantas vasculares terrestres <\/li>\n<li><strong>Autor:<\/strong>\u00a0  G\u00f3mez Ros Lauara Vanessa <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Murcia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 10\/07\/2007<\/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>Alfonso Ros Barcelo<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Rio legaspi Luis alfonso del <\/li>\n<li>Juan Cuello moreno (vocal)<\/li>\n<li>Jos\u00e9 sebasti\u00e1n Carri\u00f3n Garc\u00eda (vocal)<\/li>\n<li>ant\u00f3n Masa v\u00e1zquez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de G\u00f3mez Ros Lauara Vanessa Desde el punto de vista bot\u00e1nico, el fen\u00f3meno de la lignificaci\u00f3n est\u00e1 asociado [&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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