{"id":11169,"date":"2001-07-06T00:00:00","date_gmt":"2001-07-06T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-genetico-molecular-de-la-respuesta-de-arabidopsis-thaliana-l-al-ayuno-de-fosfato\/"},"modified":"2001-07-06T00:00:00","modified_gmt":"2001-07-06T00:00:00","slug":"analisis-genetico-molecular-de-la-respuesta-de-arabidopsis-thaliana-l-al-ayuno-de-fosfato","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/analisis-genetico-molecular-de-la-respuesta-de-arabidopsis-thaliana-l-al-ayuno-de-fosfato\/","title":{"rendered":"An\u00e1lisis gen\u00e9tico molecular de la respuesta de arabidopsis thaliana (l.) al ayuno de fosfato"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Vicente Rubio Mu\u00f1oz <\/strong><\/h2>\n<p>Las plantas han desarrollado respuestas encaminadas a adaptar su crecimiento a suelos pobres en fosfato (pi). Algunas de estas respuestas incluyen cambios a nivel metab\u00f3lico, fisiol\u00f3gico, molecular y del desarrollo de la planta. con el fin de identificar genes implicados en la regulaci\u00f3n de dichas respuetas, se selccionaron mutantes alterados en la expresi\u00f3n de un trang\u00e9n marcador del ayuno de pi, atlps1:gus, a partir de una poblaci\u00f3n m2 de arabidopsis thaliana portadora de dicho transg\u00e9n. Se identificaron diferentes mutantes, dos de ellos, atphr1 y atphr2, adem\u00e1s de tener alterada la expresi\u00f3n de atlps1: gus, presentaban alteraciones en diversas respuestas al ayuno de pi, incluyendo la expresi\u00f3n de otros genes inducibles por carencia de pi, as\u00ed como otras respuestas fisiol\u00f3gicas y del desarrollo de la planta. El gen atphr1, identificado a trav\u00e9s de una estrategia de clonaci\u00f3n posiconal, forma parte de una nueva familia g\u00e9nica a la cual tambi\u00e9n pertenece el gen phosphate starvation response 1 de chlamydomonas reinhardtii. Los miembros de esta familia (myb-cc) se caracterizan por compartir un dominio de uni\u00f3n a dna tipo myb y un motivo \u00abcoiled-coil\u00bb implicado en interacciones prote\u00edna-prote\u00edna. en consonancia con la presencia en esta prote\u00edna  de estos dominios, la prote\u00edna atphr1 se une en forma de d\u00edmero a una secuencia espec\u00edfica de naturaleza palindr\u00f3mica imperfecta. El hecho de que la secuencia reconocida por atphr1 se encuentre en los promotores de genes inducibles por carencia de pi sugieren que dicha prote\u00edna act\u00faa como un factor transcripcional en una etapa final de la ruta de transducci\u00f3n de se\u00f1al de ayuno de pi.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>An\u00e1lisis gen\u00e9tico molecular de la respuesta de arabidopsis thaliana (l.) al ayuno de fosfato<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 An\u00e1lisis gen\u00e9tico molecular de la respuesta de arabidopsis thaliana (l.) al ayuno de fosfato <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Vicente Rubio Mu\u00f1oz <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 07\/06\/2001<\/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>ares Rodr\u00edguez Paz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: pilar Carbonero zalduegui <\/li>\n<li>Francisco Murillo  araujo (vocal)<\/li>\n<li>vicente Conejero tom\u00e1s (vocal)<\/li>\n<li>Jos\u00e9 Mar\u00eda Almendral del rio (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Vicente Rubio Mu\u00f1oz Las plantas han desarrollado respuestas encaminadas a adaptar su crecimiento a suelos pobres en [&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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