{"id":12255,"date":"2018-03-09T08:58:01","date_gmt":"2018-03-09T08:58:01","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/induccion-a-embriogenesis-en-polen-caracterizacion-celular-y-expresion-de-proteinas-de-estres\/"},"modified":"2018-03-09T08:58:01","modified_gmt":"2018-03-09T08:58:01","slug":"induccion-a-embriogenesis-en-polen-caracterizacion-celular-y-expresion-de-proteinas-de-estres","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/induccion-a-embriogenesis-en-polen-caracterizacion-celular-y-expresion-de-proteinas-de-estres\/","title":{"rendered":"Inducci\u00f3n a embriogenesis en polen: caracterizaci\u00f3n celular y expresi\u00f3n de proteinas de estr\u00e9s."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jos\u00e9 Mar\u00eda Segu\u00ed Simarro <\/strong><\/h2>\n<p>El polen cultivado in vitro, tras someterlo a un tratamiento de estr\u00e9s, es capaz de desviarse de su ruta de desarrollo gametof\u00edtico hacia una nueva v\u00eda esporof\u00edtica, proceso denominado embriog\u00e9nesis del polen, por el cual el grano de polen inmaduro o microspora se multiplica para dar lugar a un embri\u00f3n y posteriomente a una planta haploide. Las plantas haploides y doble-haploides son de enorme inter\u00e9s para la obtenci\u00f3n de l\u00edneas isog\u00e9nicas en mejora vegetal de una forma r\u00e1pida adem\u00e1s de para estudios gen\u00e9ticos y de mutag\u00e9nesis.  el objetivo de esta tesis doctoral es el estudio, desde el punto de vista celular, del proceso de inducci\u00f3n a la embriog\u00e9nesis haploide.  como modelo experimental se han utilizado microsporas aisladas de anteras de brassica napus inducidas y cultivadas in vitro durante las primeras etapas del proceso de aislamiento e inducci\u00f3n y el posterior desarrollo embriog\u00e9nico.  tras la inducci\u00f3n, en la c\u00e9lula se suceden gran cantidad de acontecimientos, cambios en determinados componentes citopl\u00e1smicos. Aumenta la s\u00edntesis espec\u00edfica de ciertas prote\u00ednas implicadas en las distintas respuestas que se originan, dispar\u00e1ndose cascadas de transmisi\u00f3n de se\u00f1ales de estr\u00e9s al interior celular.  en esta tesis se ha caracterizado los cambios celulares, citpl\u00e1smicos y en los compartimentos nucleares, originados por la inducci\u00f3n a embriog\u00e9nesis. se han encontrado determinadas estructuras que pueden constituir marcadores celulares del proceso. Asimismo se han descrito cambios en la expresi\u00f3n y localizaci\u00f3n subcelular de diferentes prote\u00ednas de estr\u00e9s, espec\u00edficamente prote\u00ednas de choque t\u00e9rmico (hsp 70 y hsp 90), implicadas en la respuesta mediada por dicho tratamiento. Durante el proceso, se han detectado variaciones en la expresi\u00f3n in situ de varios elementos de las cascadas de map quinasas encargadas de la transmisi\u00f3n de se\u00f1ales extracelulares de estr\u00e9s, encontr\u00e1ndose diferentes patrones<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Inducci\u00f3n a embriogenesis en polen: caracterizaci\u00f3n celular y expresi\u00f3n de proteinas de estr\u00e9s.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Inducci\u00f3n a embriogenesis en polen: caracterizaci\u00f3n celular y expresi\u00f3n de proteinas de estr\u00e9s. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jos\u00e9 Mar\u00eda Segu\u00ed Simarro <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 13\/07\/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>Mar\u00eda  Del Carmen Risue\u00f1o Almeida<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: agustin gregorio Zapata gonzalez <\/li>\n<li>nicolas Jouve de la barreda (vocal)<\/li>\n<li>julio Beltron (vocal)<\/li>\n<li>Jaime Re\u00f1a piqueras (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jos\u00e9 Mar\u00eda Segu\u00ed Simarro El polen cultivado in vitro, tras someterlo a un tratamiento de estr\u00e9s, es [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[972,35,534],"tags":[6521,40107,40105,40106,19181,2179],"class_list":["post-12255","post","type-post","status-publish","format-standard","hentry","category-botanica","category-ciencias-de-la-vida","category-genetica-vegetal","tag-agustin-gregorio-zapata-gonzalez","tag-jaime-rena-piqueras","tag-jose-maria-segui-simarro","tag-julio-beltron","tag-maria-del-carmen-risueno-almeida","tag-nicolas-jouve-de-la-barreda"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/12255","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=12255"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/12255\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=12255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=12255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=12255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}