{"id":5196233,"date":"2010-03-20T13:51:17","date_gmt":"2010-03-20T11:51:17","guid":{"rendered":"https:\/\/www.ozono21.com\/blog\/?p=5196233"},"modified":"2026-02-19T13:22:08","modified_gmt":"2026-02-19T11:22:08","slug":"virus-usan-maquinaria-de-bacterias-para-replicarse","status":"publish","type":"post","link":"https:\/\/www.ozono21.com\/blog\/virus\/virus-usan-maquinaria-de-bacterias-para-replicarse\/","title":{"rendered":"Los virus pueden usurpar la maquinaria de las bacterias para replicarse"},"content":{"rendered":"<p style=\"text-align: justify;\">\n<h2 style=\"text-align: justify;\"><strong><img loading=\"lazy\" decoding=\"async\" style=\"margin: 30px 0px 30px 0px; cursor: hand; border: 0px;\"  class=\"alignleft\"    src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2012\/06\/vir\u200fus-fagos.jpg\" alt=\" bacterias para replicarse \" title=\"Los virus pueden usurpar la maquinaria de las bacterias para replicarse \"  width=\"313\" height=\"209\" \/><\/a><a title=\"Ozono contra los Virus \" href=\"https:\/\/www.ozono21.com\/sectores-pagina\/empresariales\/desinfeccion-limpieza\/3\/\" target=\"_blank\" rel=\"noopener noreferrer\">Un equipo del Consejo Superior de Investigaciones Cient\u00edficas (CSIC) ha demostrado c\u00f3mo los virus se sirven del esqueleto de las bacterias para replicarse de forma m\u00e1s eficiente. <\/a><\/strong><\/h2>\n<\/p>\n<p style=\"text-align: justify;\"><em>Autores, Daniel Mu\u00f1oz-Esp\u00edn, Richard Daniel, Yoshikazu Kawai, Rut Carballido-L\u00f3pez, Virginia Castilla-Llorente, Jeff Errington, Wilfried J.J. Meijer y <strong>Margarita Salas<\/strong><\/em>. <strong>The actin-like MreB cytoskeleton organizes viral DNA replication in bacteria<\/strong> PNAS<\/p>\n<p>FUENTE | CSIC &#8211; mi+d (30\/11\/2009)<\/p>\n<p style=\"text-align: justify;\"><strong>Un equipo, dirigido por la investigadora del Consejo Superior de Investigaciones Cient\u00edficas (CSIC) Margarita Salas, ha demostrado c\u00f3mo los virus se sirven del esqueleto de las bacterias para replicarse de forma m\u00e1s eficiente.<\/strong> Esta capacidad s\u00f3lo era conocida, hasta el momento, en c\u00e9lulas eucariotas, la base de los organismos complejos como el ser humano. El hallazgo, publicado en <strong><em><a href=\"http:\/\/www.pnas.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">Proceedings<\/a><\/em><\/strong><em> <\/em>de la Academia Nacional de Ciencias de EE.UU. (<em>PNAS<\/em>), permitir\u00eda crear estirpes bacterianas modificadas gen\u00e9ticamente para minimizar sus posibilidades de infecci\u00f3n por virus. <strong>Este descubrimiento podr\u00eda evitar p\u00e9rdidas econ\u00f3micas en industrias que emplean bacterias en sus procesos de producci\u00f3n, como la de los detergentes o fertilizantes.<\/strong><\/p>\n<p style=\"text-align: justify;\">Adem\u00e1s de Salas, el trabajo ha contado con la participaci\u00f3n de los investigadores del CSIC Daniel Mu\u00f1oz Esp\u00edn y Wilfried Meijer, del <strong><a href=\"http:\/\/www.cbm.uam.es\/\" target=\"_blank\" rel=\"noopener noreferrer\">Centro de Biolog\u00eda Molecular Severo Ochoa<\/a> <\/strong>(centro mixto del CSIC y la <a href=\"http:\/\/www.uam.es\/ss\/Satellite\/es\/home\" target=\"_blank\" rel=\"noopener noreferrer\">Universidad Aut\u00f3noma de Madrid<\/a>), en colaboraci\u00f3n con cient\u00edficos de la <strong><a href=\"http:\/\/www.ncl.ac.uk\/\" target=\"_blank\" rel=\"noopener noreferrer\">Universidad de Newcastle<\/a> <\/strong>(Reino Unido).<\/p>\n<p style=\"text-align: justify;\">Como explica la investigadora del CSIC, los virus han coevolucionado con sus c\u00e9lulas hospedadoras a lo largo de la historia y, por ello, \u00abno resulta sorprendente que hayan aprendido a explotar diferentes mecanismos de ellas\u00bb. La comunidad cient\u00edfica conoce desde hace a\u00f1os que, en las c\u00e9lulas eucariotas, <strong>los virus aprovechan las caracter\u00edsticas del citoesqueleto para enriquecer su sitio natural de replicaci\u00f3n en el interior de la c\u00e9lula o para establecer una <em>autopista<\/em> sobre la que la nueva progenie de virus pueda <em>circular<\/em> para abandonar la c\u00e9lula infectada. <\/strong><\/p>\n<p style=\"text-align: justify;\">El <strong>citoesqueleto es<\/strong> una red tridimensional de filamentos proteicos que desempe\u00f1a un papel clave en la estructura y funci\u00f3n de las c\u00e9lulas. Se trata de una estructura din\u00e1mica que, adem\u00e1s de proporcionar soporte y forma a la c\u00e9lula, realiza otras muchas funciones como facilitar la movilidad y el transporte intercelular o intervenir en la divisi\u00f3n celular.<\/p>\n<p style=\"text-align: justify;\">Anteriormente, se consideraba que el citoesqueleto era una estructura \u00fanica de las c\u00e9lulas eucariotas pero, en los \u00faltimos a\u00f1os, se han detectado hom\u00f3logos procariotas, en concreto, en bacterias: las prote\u00ednas MreB, hom\u00f3logas de las prote\u00ednas actinas que conforman los microfilamentos del citoesqueleto eucari\u00f3tico.<\/p>\n<p style=\"text-align: justify;\">A partir de este hallazgo, Salas y su equipo han demostrado ahora que las prote\u00ednas MreB tambi\u00e9n pueden ser explotadas por los virus para aumentar la replicaci\u00f3n de su material gen\u00e9tico, de la misma forma que lo hacen los virus eucari\u00f3ticos con el citoesqueleto de las c\u00e9lulas eucariotas. <strong>El equipo ha probado este fen\u00f3meno en diferentes especies bacterianas, entre ellas, <em>Bacillus subtilis<\/em>.<\/strong> Esta bacteria, de inter\u00e9s biotecnol\u00f3gico, se utiliza en aplicaciones industriales como la producci\u00f3n de enzimas proteasas o amilasas. Las proteasas, por ejemplo, se emplean en los detergentes y en la elaboraci\u00f3n de fertilizantes. Estas bacterias pueden ser infectadas por el virus pi29, uno de los principales objetos de investigaci\u00f3n de la cient\u00edfica del CSIC.<\/p>\n<p style=\"text-align: justify;\">Seg\u00fan explica Salas, los virus utilizan las prote\u00ednas MreB como <em>andamios<\/em> sobre los que organizar sus maquinarias replicativas, lo que les permite obtener una gran progenie viral cuando las c\u00e9lulas son infectadas y extender, as\u00ed, la infecci\u00f3n a otras c\u00e9lulas procariotas. En el caso de <em>Bacillus subtilis<\/em>, el trabajo de Salas y su equipo permitir\u00eda el desarrollo de estirpes con mutaciones en la familia de prote\u00ednas MreB que, por tanto, ser\u00edan menos sensibles a la <strong>infecci\u00f3n por fagos (virus que infectan a las bacterias), algo que genera grandes p\u00e9rdidas econ\u00f3micas.<\/strong><\/p>\n<table border=\"3\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td bgcolor=\"#3b7cff\" height=\"25\" width=\"600\" align=\"center\"><strong><a title=\"Acci&oacute;n del OZONO\" target=\"_blank\" href=\"\/actualidad-interna\/accion-del-ozono\/423\/\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" alt=\"Noticias Relacionadas\" width=\"515600\" height=\"25\" src=\"\/blog\/wp-content\/uploads\/2014\/06\/Noticias-Relacionadas.png\" \/><\/a><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><big><\/p>\n<ul>\n<li><a title=\"Post sobre VIRUS\" href=\"https:\/\/www.ozono21.com\/blog\/category\/virus\/\" target=\"_blank\" rel=\"noopener noreferrer\">Post sobre VIRUS<\/a><\/li>\n<\/ul>\n<p><\/big><\/p>\n<table border=\"3\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td bgcolor=\"#3b7cff\" height=\"25\" width=\"600\" align=\"center\"><strong><a title=\"Videos YouTube\" target=\"_blank\" href=\"https:\/\/www.youtube.com\/user\/ozono21\/videos?sort=p&amp;view=0&amp;flow=grid\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" alt=\"Videos Youtube\" width=\"600\" height=\"25\" src=\"\/blog\/wp-content\/uploads\/2014\/06\/Videos-Youtube.png\" \/><\/a><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" width=\"553\" height=\"415\" src=\"https:\/\/www.youtube.com\/embed\/4huccPTcFzA\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_5196233\" class=\"pvc_stats total_only  \" data-element-id=\"5196233\" style=\"\"><i class=\"pvc-stats-icon small\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Un equipo del Consejo Superior de Investigaciones Cient\u00edficas (CSIC) ha demostrado c\u00f3mo los virus se sirven del esqueleto de las bacterias para replicarse de forma m\u00e1s eficiente. Autores, Daniel Mu\u00f1oz-Esp\u00edn, Richard Daniel, Yoshikazu Kawai, Rut Carballido-L\u00f3pez, Virginia Castilla-Llorente, Jeff Errington, &hellip; <a href=\"https:\/\/www.ozono21.com\/blog\/virus\/virus-usan-maquinaria-de-bacterias-para-replicarse\/\">Sigue leyendo <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_5196233\" class=\"pvc_stats total_only  \" data-element-id=\"5196233\" style=\"\"><i class=\"pvc-stats-icon small\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div 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