{"id":142383,"date":"2026-04-14T06:55:45","date_gmt":"2026-04-14T06:55:45","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/alternancia-de-las-rutas-gametofitica-y-esporofitica-en-polen-de-nicotiana-tabacum-estudio-celular-fisiologico-y-molecular\/"},"modified":"2026-04-14T06:55:45","modified_gmt":"2026-04-14T06:55:45","slug":"alternancia-de-las-rutas-gametofitica-y-esporofitica-en-polen-de-nicotiana-tabacum-estudio-celular-fisiologico-y-molecular","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/alternancia-de-las-rutas-gametofitica-y-esporofitica-en-polen-de-nicotiana-tabacum-estudio-celular-fisiologico-y-molecular\/","title":{"rendered":"Alternancia de las rutas gametofitica y esporofitica en polen de nicotiana tabacum: estudio celular, fisiologico y molecular."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Dolores Garrido Garrido <\/strong><\/h2>\n<p>Se realiza un estudio de los cultivos de polen bicelular para obtener polen embriogenico y poder comparar ambos estados de desarrollo. El estudio ultraestructural a microscopia electronica de transmision, pone de manifiesto diferencias estructurales en organulos, tama\u00f1o vacuolar, nucleolo y desaparicion de poros nucleares en la membrana del nucleo de la celula vegetativa del polen embriogenico. Mediante marcaje con 3h-timidina se demuestra que la sintesis de adn tiene lugar durante la inducion embriogenica. Durante las primeras fases de dicha inducion, disminuye la sintesis de arn y proteinas, asi mismo, tiene lugar cambios en la actividad proteina-quinasa, los cuales pueden estar implicados en la reactivacion del ciclo celular de la celula vegetativa.  las poliaminas putrescina, espermidina y espermina, disminuyen durante el proceso de inducion, las dos primeras ligadas a macromoleculas tienen un incremento importante y parecen estar implicadas en un control posttraduccional.  se ha aislado y caracterizado el clon nthsp18p, que codifica una proteina relacionada con el estres termico (hsp) y de los datos aportados puede relacionarse este clon con procesos de desarrollo.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Alternancia de las rutas gametofitica y esporofitica en polen de nicotiana tabacum: estudio celular, fisiologico y molecular.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Alternancia de las rutas gametofitica y esporofitica en polen de nicotiana tabacum: estudio celular, fisiologico y molecular. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Dolores Garrido Garrido <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Granada<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1993<\/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>\u00e1ngel Jes\u00fas Matilla Carro<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Gregorio Nicol\u00e1s Rodrigo <\/li>\n<li>Juan Segura Garcia Del Rio (vocal)<\/li>\n<li>Vicente Conejero Tom\u00e1s (vocal)<\/li>\n<li> Rodriguez Garcia M. Isabel (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Dolores Garrido Garrido Se realiza un estudio de los cultivos de polen bicelular para obtener polen embriogenico [&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":[849,972,35,1989,479],"tags":[3427,196584,9574,3107,37867,7881],"class_list":["post-142383","post","type-post","status-publish","format-standard","hentry","category-biologia-celular","category-botanica","category-ciencias-de-la-vida","category-cultivo-de-tejidos","category-fisiologia-vegetal","tag-angel-jesus-matilla-carro","tag-dolores-garrido-garrido","tag-gregorio-nicolas-rodrigo","tag-juan-segura-garcia-del-rio","tag-rodriguez-garcia-m-isabel","tag-vicente-conejero-tomas"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/142383","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=142383"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/142383\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=142383"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=142383"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=142383"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}