{"id":38730,"date":"2018-03-09T09:38:27","date_gmt":"2018-03-09T09:38:27","guid":{"rendered":""},"modified":"2018-03-09T09:38:27","modified_gmt":"2018-03-09T09:38:27","slug":"presencia-de-saprolegnia-en-el-agua-del-rio-luna-leon-caracteristicas-ultraestructurales-y-patogenicidad-experimental-para-la-trucha-arco-iris-oncorhynchus-mykiss-de-las-cepas-potencialmente-pa","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/presencia-de-saprolegnia-en-el-agua-del-rio-luna-leon-caracteristicas-ultraestructurales-y-patogenicidad-experimental-para-la-trucha-arco-iris-oncorhynchus-mykiss-de-las-cepas-potencialmente-pa\/","title":{"rendered":"Presencia de saprolegnia en el agua del rio luna (leon). caracteristicas  ultraestructurales y patogenicidad experimental para la trucha arco iris  (oncorhynchus mykiss) de las cepas potencialmente patogenas."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Juan  Miguel Fregeneda Grandes <\/strong><\/h2>\n<p>Se ha estudiado la presencia de saprolegniaceae, principalmente saprolegnia, a lo largo de un a\u00f1o en el r\u00edo luna (le\u00f3n), en el que suelen presentarse brotes invernales de saprolegniosis en las truchas. Se observ\u00f3 una variaci\u00f3n estacinal en la concentraci\u00f3n de saprolegniaceae, no en el caso de las cepas de saprolegnia potencialmente pat\u00f3genas, con valores m\u00ednimos en el invierno y m\u00e1ximos en verano y comienzos del oto\u00f1o. El g\u00e9nero m\u00e1s frecuente fue saprolegnia y las cepas que ten\u00edan filamentos largos en sus quistes secundarios se identificaron como saprolegnia sp. Y s. Diclina tipo 1, que se consideraron potencialmente pat\u00f3genas para los salm\u00f3nidos.  los estudios ultraestructurales de los quistes de las zoosporas secundarias de dichas cepas potencialmente pat\u00f3genas mostraron diferencias respecto al n\u00famero de haces y al n\u00famero y longitud de los filamentos por haz, lo que sirvi\u00f3 para clasificarlas en los grupos i y ii, seg\u00fan que tuvieran en los haces mayor o menor n\u00famero y longitud de los filamentos, respectivamente.  mediante infecciones experimentales con juveniles de trucha arco iris se comprob\u00f3 una estrecha relaci\u00f3n entre las caracter\u00edsticas de los quistes secundarios y el grado de patogenicidad. Las cepas pertenecientes grupo l resultaron menos pat\u00f3genas que las del grupo ii. se observ\u00f3 la difusi\u00f3n de saprolegnia por v\u00eda sanguinea.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Presencia de saprolegnia en el agua del rio luna (leon). caracteristicas  ultraestructurales y patogenicidad experimental para la trucha arco iris  (oncorhynchus mykiss) de las cepas potencialmente patogenas.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Presencia de saprolegnia en el agua del rio luna (leon). caracteristicas  ultraestructurales y patogenicidad experimental para la trucha arco iris  (oncorhynchus mykiss) de las cepas potencialmente patogenas. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Juan  Miguel Fregeneda Grandes <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Le\u00f3n<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 23\/10\/1998<\/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>Jos\u00e9 Miguel Aller Gancedo<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan  Luis Mart\u00ednez Alvarez <\/li>\n<li>Carmelo Ortega Rodriguez (vocal)<\/li>\n<li>Jos\u00e9 Luis Muzquiz Moracho (vocal)<\/li>\n<li>Fernando Real Valcarcel (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Juan Miguel Fregeneda Grandes Se ha estudiado la presencia de saprolegniaceae, principalmente saprolegnia, a lo largo de [&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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