{"id":27314,"date":"2003-04-12T00:00:00","date_gmt":"2003-04-12T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/efecto-del-insecticida-organofosforado-malation-sobre-el-aparato-reproductor-de-la-lombriz-de-tierra-eisenia-foetida-como-especie-biocentinela\/"},"modified":"2003-04-12T00:00:00","modified_gmt":"2003-04-12T00:00:00","slug":"efecto-del-insecticida-organofosforado-malation-sobre-el-aparato-reproductor-de-la-lombriz-de-tierra-eisenia-foetida-como-especie-biocentinela","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/efecto-del-insecticida-organofosforado-malation-sobre-el-aparato-reproductor-de-la-lombriz-de-tierra-eisenia-foetida-como-especie-biocentinela\/","title":{"rendered":"Efecto del insecticida organofosforado malati\u00f3n sobre el aparato reproductor de la lombriz de tierra eisenia foetida como especie biocentinela"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Espinoza Navarro Omar Ren\u00e9 <\/strong><\/h2>\n<p>El malati\u00f3n es un insecticida organofosforado de amplio uso cuyo principal efecto t\u00f3xico agudo se debe a la inhibici\u00f3n de la enzima acetilcolinesterasa. sin embargo, poco se ha estudiado respecto a sus efectos cr\u00f3nicos entre los cuales se encuentran los efectos sobre la reproducci\u00f3n.  la lombriz de tierra eisenia foetida es un gusano segmentado (annelida, oligochaeta), que constituye un excelente modelo de organismo biocentinela para evaluar los riesgos t\u00f3xicos de xenobi\u00f3ticos en ecosistemas terrestres.  el objetivo de este estudio es analizar los da\u00f1os sobre el aparato reproductor de eisenia foetida expuesta a malati\u00f3n comerical 57%. Se utilizaron lombrices de tierra con clitelo desarrollado, las cuales fueron expuestas a dosis \u00fanicas subletales de 2\/3, 1\/3, 1\/6 y 1\/10 de la ld50 (ld50= 880 mg\/kg de tierra). Las controles fueron regadas con agua potable. Cada grupo fue analizado al d\u00eda 1,5,15 y 30 post-tratamiento.  los resultados observados en animales indican una reducci\u00f3n significativa de peso corporal en individuos tratados y enrrollamiento de la cola en el 100% de ellos. El recuento esperm\u00e1tico muestra un aumento significativo a los 1 y 5 d\u00edas, seguida de una disminuci\u00f3n entre los 15 y los 30 d\u00edas. el uso de la t\u00e9cnica del naranja de acridina, muestra un aumento significativo de espermatozoides metacrom\u00e1ticos anormales en animales tratados (fluorescencia de color rojo).  el estudio histol\u00f3gico, con m\u00e9todo tricr\u00f3mico de arteta, muestra que los n\u00facleos de espermatogonias en ves\u00edculas seminales de animales tratados con maltai\u00f3n, se encuentran hipercrom\u00e1ticos, sugiriendo apoptosis. El tratamiento con la t\u00e9cnica de bromo-deoxiuridina muestra un alza significativa de la proliferaci\u00f3n celular entre los 5 y 15 d\u00edas en individuos tratados. Con la t\u00e9cnica de tunel, se observa que los individuos tratados presentan mayor porcentaje de espermatogonias con quiebre en su adn, sugiriendo apoptosis.  estos resultado<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Efecto del insecticida organofosforado malati\u00f3n sobre el aparato reproductor de la lombriz de tierra eisenia foetida como especie biocentinela<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Efecto del insecticida organofosforado malati\u00f3n sobre el aparato reproductor de la lombriz de tierra eisenia foetida como especie biocentinela <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Espinoza Navarro Omar Ren\u00e9 <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 04\/12\/2003<\/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>Juan  Carlos Stockert Cossu<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jaime Gosalvez berenguer <\/li>\n<li>Javierfrancisco Regadera gonz\u00e1lez (vocal)<\/li>\n<li>Mar\u00eda  Jos\u00e9 Blanquez layunta (vocal)<\/li>\n<li> Botella cubells Mar\u00eda Luisa (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Espinoza Navarro Omar Ren\u00e9 El malati\u00f3n es un insecticida organofosforado de amplio uso cuyo principal efecto t\u00f3xico [&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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