{"id":97919,"date":"2009-11-12T00:00:00","date_gmt":"2009-11-12T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/caracterizacion-de-la-familia-genica-de-nadph-tiorredoxina-reductasas-ntr-de-arabidopsis\/"},"modified":"2009-11-12T00:00:00","modified_gmt":"2009-11-12T00:00:00","slug":"caracterizacion-de-la-familia-genica-de-nadph-tiorredoxina-reductasas-ntr-de-arabidopsis","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sevilla\/caracterizacion-de-la-familia-genica-de-nadph-tiorredoxina-reductasas-ntr-de-arabidopsis\/","title":{"rendered":"Caracterizaci\u00f3n de la familia g\u00e9nica de nadph tiorredoxina reductasas (ntr) de arabidopsis"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Kerstin Kirchsteiger <\/strong><\/h2>\n<p>En plantas la familia g\u00e9nica que codifica tiorredoxina reductasa dependiente de nadph (ntr) est\u00e1 compuesta por tres genes: ntra, ntrb y ntrc. Las prote\u00ednas ntra y ntrb son altamente hom\u00f3logas y tienen localizaci\u00f3n predominante en citsol y mitochondria, respectivamente. Ntrc es una ntr peculiar compuesta por un p\u00e9ptido de tr\u00e1nsito al cloroplasto, un dominio ntr y un dominio trx en un solo polip\u00e9ptido. Nuestro grupo ha descrito que la prote\u00edn ntrc de arroz forma un sistema tiorredoxina reductasa in vitro [1]. el mutante ntrc de arabidopsis muestra un fenotipo de retraso de desarrollo, menor cantidad de pigmentos fotosint\u00e9ticos, morfolog\u00eda de irregular de las c\u00e9lulas del mes\u00f3filo y cloroplastos con estructura deficiente. Tanto los mutantes simples en ntra y ntrb, como el mutante doble en ambos genes no muestran fenotipo en condiciones de cultivo est\u00e1ndar. Mientras que el mutante doble ntra-ntrc muestra un fenotipo similar a la planta knock-out en ntrc, un mutante doble ntrb-ntrc es inviable lo que apunta a mayor importancia de las ntr localizadas en org\u00e1nulos. en geles de tinci\u00f3n de actividad de enzimas involucradas en la respuesta a estr\u00e9s, como la ascorbato peroxidasa y super\u00f3xido dismutasa (sod) solamente el mutante ntrc muestra inducci\u00f3n de una sod cloroplast\u00eddica, lo que refuerza el papel adjudicado de ntrc en la detoxificaci\u00f3n del cloroplasto.  por \u00faltimo, en an\u00e1lisis western blot en condiciones no reductoras, la planta carente de ntrc muestra un desequilibrio en el estado redox de 2 cys-peroxirredoxina, lo que indica que una de las consecuencias de la deficiencia de ntrc es la alteraci\u00f3n del equilibrio redox de prote\u00ednas cloroplast\u00eddicas.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Caracterizaci\u00f3n de la familia g\u00e9nica de nadph tiorredoxina reductasas (ntr) de arabidopsis<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Caracterizaci\u00f3n de la familia g\u00e9nica de nadph tiorredoxina reductasas (ntr) de arabidopsis <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Kerstin Kirchsteiger <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Sevilla<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 11\/12\/2009<\/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>Francisco Javier Cejudo Fern\u00e1ndez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: pilar Carbonero zalduegui <\/li>\n<li>francisca Sevilla valenzuela (vocal)<\/li>\n<li>Jos\u00e9 Antonio Navarro  carruesco (vocal)<\/li>\n<li>Antonio  Jes\u00fas Serrato recio (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Kerstin Kirchsteiger En plantas la familia g\u00e9nica que codifica tiorredoxina reductasa dependiente de nadph (ntr) est\u00e1 compuesta [&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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