{"id":71924,"date":"2018-03-09T23:16:38","date_gmt":"2018-03-09T23:16:38","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/aspectos-fisiologicos-y-moleculares-del-transporte-de-cesio-en-las-especies-dulceacua%c2%adcolas-chalamydomonas-reinhardtii-d-y-riccia-fluitans-l\/"},"modified":"2018-03-09T23:16:38","modified_gmt":"2018-03-09T23:16:38","slug":"aspectos-fisiologicos-y-moleculares-del-transporte-de-cesio-en-las-especies-dulceacua%c2%adcolas-chalamydomonas-reinhardtii-d-y-riccia-fluitans-l","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/aspectos-fisiologicos-y-moleculares-del-transporte-de-cesio-en-las-especies-dulceacua%c2%adcolas-chalamydomonas-reinhardtii-d-y-riccia-fluitans-l\/","title":{"rendered":"Aspectos fisiol\u00f3gicos y moleculares del transporte de cesio en las especies dulceacu\u00edcolas chalamydomonas reinhardtii d. y riccia fluitans l."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Adolfo Linares Rueda <\/strong><\/h2>\n<p>En la presente tesis se ha abordado, por un lado, la caracterizaci\u00f3n de la incorporaci\u00f3n y acumulaci\u00f3n de cs+ en c.Reinhardtii (cepas silvestres y trk1) mediante t\u00e9cnicas radiom\u00e9tricas, atendiendo a la influencia del r\u00e9gimen de k+ y del ph sobre \u00e9stos procesos, as\u00ed como sobre variables fisiol\u00f3gicas relacionadas, como el volumen celular; y por otro lado, la b\u00fasqueda de genes implicados en dicho transporte tanto en c.Reinhardtii como en r.Fluitans, y en particular de transportadores tipo hak. As\u00ed, se ha determinado que el r\u00e9gimen de k+, tiene una influencia significativa sobre el volumen celular de la cepa silvestr, pero no en la cepa trk1, que presenta adem\u00e1s un volumen celular medio inferior al exhibido por la silvestres. Las c\u00e9lulas silvestres adaptadas a deficiencia de k+ muestran una reducci\u00f3n del volumen celular medio. El ph externo tambi\u00e9n afecta significativamente al volumen celular de la cepa silvestre, aunque dicho efecto no ha podido ser concretado, pero no en el ca so de las c\u00e9lulas trk1. La concentraci\u00f3n externa de cs+ afecta significativamente al volumen celular de ambas cepas, aunque de forma opuesta. En relaci\u00f3n con el transporte de cs+, se ha determinado la existencia de un  transporte de cs+ de alta afinidad saturable en ambas cepas de c.Reinhardtii adaptada a deficiencia de k+, con un valor de km muy bajo en el caso del silvestre (km 6u;m cs+). En contraste con la cepa silvestre, la cepa trk1 exhibe una menor afinidad (km 36um cs+), aunque tasa de incorporaci\u00f3n superiores indicando que esta cepa mutante presenta una significativa alteraci\u00f3n o desregulaci\u00f3n del transporte decs+ de alta afinidad. En condiciones de suficiencia de k+, la cepa silvestre exhibe un transporte decs+ de baja afinidad observado en la cepa trk1 en similares condiciones resulta cualitativamente diferente al mostrador por la cepa silvestre, sugiriendo  tambi\u00e9n una desregulaci\u00f3n de los mecanismos implicados, caracteriz\u00e1ndose<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Aspectos fisiol\u00f3gicos y moleculares del transporte de cesio en las especies dulceacu\u00edcolas chalamydomonas reinhardtii d. y riccia fluitans l.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Aspectos fisiol\u00f3gicos y moleculares del transporte de cesio en las especies dulceacu\u00edcolas chalamydomonas reinhardtii d. y riccia fluitans l. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Adolfo Linares Rueda <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 M\u00e1laga<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 16\/12\/2004<\/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> Fern\u00e1ndez Garc\u00eda Jos\u00e9 Antonio<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Francisco xavier Niell castanera <\/li>\n<li>Jos\u00e9 M\u00aa Maldonado ruiz (vocal)<\/li>\n<li>alonso Rodriguez navarro (vocal)<\/li>\n<li>Manuel Pineda priego (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Adolfo Linares Rueda En la presente tesis se ha abordado, por un lado, la caracterizaci\u00f3n de la [&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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