{"id":137337,"date":"2026-01-12T17:04:47","date_gmt":"2026-01-12T17:04:47","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-citotoxico-del-cadmio-en-la-cianobacteria-nostoc-uam-208-aislada-en-tramos-contaminados-de-rios-de-la-comunidad-de-madrid\/"},"modified":"2026-01-12T17:04:47","modified_gmt":"2026-01-12T17:04:47","slug":"estudio-citotoxico-del-cadmio-en-la-cianobacteria-nostoc-uam-208-aislada-en-tramos-contaminados-de-rios-de-la-comunidad-de-madrid","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/estudio-citotoxico-del-cadmio-en-la-cianobacteria-nostoc-uam-208-aislada-en-tramos-contaminados-de-rios-de-la-comunidad-de-madrid\/","title":{"rendered":"Estudio citotoxico del cadmio en la cianobacteria nostoc uam 208 aislada en tramos contaminados de rios de la comunidad de Madrid"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Francisca Fern\u00e1ndez Pi\u00f1as <\/strong><\/h2>\n<p>Se ha estudiado la accion toxica del cadmio en una cianobacteria, nostoc uam 208, aislada de tramos contaminados con metales pesados de rios de la comunidad de Madrid. En primer lugar, se ha estudiado la disponibilidad real del metal en el medio de cultivo utilizado para el crecimiento de esta cianobacteria y en segundo lugar, se ha ensayado la toxicidad del cadmio en diversos parametros fisiologicos y en la ultraestructura del microorganismo. Se ha encontrado que la fijacion del nitrogeno es la funcion fisiologica que se afecto en primer lugar y en mayor medida. El desprendimiento de o2 fotosintetico tambien resulto muy inhibido a tiempos cortos. Mediante diversos experimentos, se ha comprobado que la inhibicion de la fijacion de nitrogeno parece estar relacionada con la inactivacion por oxigeno de la enzima responsable de este proceso, la nitrogenasa. Los cambios ultraestructurales encontrados incluyen una vacuolizacion generalizada de las celulas junto a una patente degradacion de las membranas fotosinteticas.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio citotoxico del cadmio en la cianobacteria nostoc uam 208 aislada en tramos contaminados de rios de la comunidad de Madrid<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio citotoxico del cadmio en la cianobacteria nostoc uam 208 aislada en tramos contaminados de rios de la comunidad de Madrid <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Francisca Fern\u00e1ndez Pi\u00f1as <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1991<\/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>Ildefonso Bonilla Mangas<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Flor (secretario) Martinez Diez <\/li>\n<li>Agustin Garate Ormaechea (vocal)<\/li>\n<li>Fernando Silio Gomez-carcedo (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Francisca Fern\u00e1ndez Pi\u00f1as Se ha estudiado la accion toxica del cadmio en una cianobacteria, nostoc uam 208, [&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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