{"id":5198322,"date":"2012-09-19T20:05:12","date_gmt":"2012-09-19T18:05:12","guid":{"rendered":"https:\/\/www.ozono21.com\/blog\/?p=5198322"},"modified":"2026-01-21T23:58:21","modified_gmt":"2026-01-21T21:58:21","slug":"bacterias-disparar-dardos-toxicos","status":"publish","type":"post","link":"https:\/\/www.ozono21.com\/blog\/toxinas\/bacterias-disparar-dardos-toxicos\/","title":{"rendered":"Algunas bacterias son capaces de disparar dardos t\u00f3xicos"},"content":{"rendered":"<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-5198324 aligncenter\" style=\"margin: 0px 55px 10px 5px; cursor: hand; border: 0px;\"title=\"Bacterias Dardos de Veneno\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2012\/09\/Bacterias-Dardos-de-Veneno.jpg\" alt=\" bacterias son capaces de disparar dardos t\u00f3xicos\" width=\"523\" height=\"384\" \/><\/p>\n<p style=\"text-align: justify;\">\n<h2 style=\"text-align: justify;\"><strong><a title=\"Ozono21 Desinfecci\u00f3n\" href=\"https:\/\/www.ozono21.com\/sectores-pagina\/empresariales\/desinfeccion-limpieza\/3\/\" target=\"_blank\" rel=\"noopener noreferrer\">Las bacterias han desarrollado diferentes sistemas para segregar prote\u00ednas en el fluido que las rodea o hacia dentro de otras c\u00e9lulas. Algunas bacterias, por ejemplo, tienen estructuras externas comparables a una jeringuilla, que pueden clavar en otras c\u00e9lulas para inyectarles a \u00e9stas ciertas prote\u00ednas.<\/a><\/strong><\/h2>\n<\/p>\n<p>Fuente: Noticiasdelaciencia (9 abril 2012)<\/p>\n<p style=\"text-align: justify;\">Otro sistema, llamado sistema de secreci\u00f3n de tipo VI, est\u00e1 presente en alrededor de la cuarta parte de todas las bacterias que tienen dos membranas. A pesar de ser com\u00fan, los cient\u00edficos no hab\u00edan determinado c\u00f3mo funciona. <strong>Ahora, un equipo de especialistas ha deducido c\u00f3mo es exactamente la estructura del sistema de secreci\u00f3n de tipo VI y ha llegado a la conclusi\u00f3n de que act\u00faa como una especie de ballesta de muelles que dispara dardos envenenados.<\/strong><\/p>\n<p style=\"text-align: justify;\">La nanoarma, que abarca una distancia no mayor de unos 80 \u00e1tomos en fila, es un tubo que se contrae muy r\u00e1pidamente, disparando un dardo o pu\u00f1al interno a trav\u00e9s de las membranas de la c\u00e9lula, hacia el medio circundante y, posiblemente, hacia dentro de otra c\u00e9lula. <strong>El tubo entonces se desensambla y puede volver a ensamblarse en cualquier otra parte de la c\u00e9lula, listo para disparar otro dardo molecular.<\/strong><\/p>\n<p style=\"text-align: justify;\"><big><strong><a title=\"Ozono21 Desinfecci\u00f3n\" href=\"https:\/\/www.ozono21.com\/sectores-pagina\/empresariales\/desinfeccion-limpieza\/3\/\" target=\"_blank\" rel=\"noopener noreferrer\">El mecanismo de disparo es similar al usado por bacteri\u00f3fagos, virus que infectan a las bacterias. En este caso, el bacteri\u00f3fago posee una especie de rabo que consta de una vaina exterior y una especie de tubo interior que es eyectado.<\/a><\/strong><\/big><\/P><\/p>\n<p style=\"text-align: justify;\">Dado que otros investigadores ya hab\u00edan establecido que las prote\u00ednas del sistema de secreci\u00f3n de tipo VI son similares a las encontradas en varias partes del \u00abrabo\u00bb de esos bacteri\u00f3fagos y sus estructuras asociadas, no ha sido una sorpresa del todo inesperada el hallazgo del mecanismo del sistema de secreci\u00f3n de tipo VI.<\/p>\n<p style=\"text-align: justify;\"><strong>La nueva investigaci\u00f3n ha sido realizada por el equipo de Grant Jensen y Martin Pilhofer del Instituto Tecnol\u00f3gico de California, John Mekalanos y Marek Basler de la Escuela M\u00e9dica de la Universidad de Harvard, y Gregory Henderson (que ahora trabaja como m\u00e9dico en la Cl\u00ednica Mayo), en Estados Unidos todas estas instituciones.<\/strong><\/p>\n<table border=\"3\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td align=\"center\" bgcolor=\"#3b7cff\" width=\"600\" height=\"25\"><strong><a title=\"Acci\u00f3n del OZONO\" href=\"https:\/\/www.ozono21.com\/actualidad-interna\/accion-del-ozono\/423\/\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2014\/06\/Noticias-Relacionadas.png\" alt=\"Noticias Relacionadas\" width=\"600\" height=\"25\" border=\"0\" \/><\/a><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><big><\/p>\n<ul>\n<li><strong><a title=\"Fagos contra bacterias\" href=\"https:\/\/www.ozono21.com\/blog\/virus\/fagos-contra-bacterias\/\" target=\"_blank\" rel=\"noopener noreferrer\">Fagos contra bacterias<\/a><\/strong><\/li>\n<li><strong><a title=\"Hallan millones de virus desconocidos ocultos en aguas residuales\" href=\"https:\/\/www.ozono21.com\/blog\/toxinas\/hallan-millones-de-virus-desconocidos-ocultos-en-aguas-residuales\/\" target=\"_blank\" rel=\"noopener noreferrer\">Hallan millones de virus desconocidos ocultos en aguas residuales<\/a><\/strong><\/li>\n<li><strong><a title=\"El extracto de granada influye en la resistencia a los virus de la gripe\" href=\"https:\/\/www.ozono21.com\/blog\/salud\/el-extracto-de-granada-influye-en-la-resistencia-a-los-virus-de-la-gripe\/\" target=\"_blank\" rel=\"noopener noreferrer\">El extracto de granada influye en la resistencia a los virus de la gripe<\/a><\/strong><\/li>\n<li><strong><a title=\"Los virus pueden usurpar la maquinaria de las bacterias para replicarse\" href=\"https:\/\/www.ozono21.com\/blog\/virus\/los-virus-pueden-usurpar-la-maquinaria-de-las-bacterias-para-replicarse\/\" target=\"_blank\" rel=\"noopener noreferrer\">Los virus pueden usurpar la maquinaria de las bacterias para replicarse<\/a><\/strong><\/li>\n<li><strong><a title=\"Ozono21 Riesgos Biol\u00f3gicos\" href=\"https:\/\/www.ozono21.com\/blog\/videos-riesgos-biologicos\/ozono21-riesgos-biologicos\/\" target=\"_blank\" rel=\"noopener noreferrer\">Ozono21 Videos Riesgos MicroBiol\u00f3gicos<\/a><\/strong><\/li>\n<\/ul>\n<p><\/big><\/p>\n<table border=\"3\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td align=\"center\" bgcolor=\"#3b7cff\" width=\"600\" height=\"25\"><strong><a title=\"Videos YouTube\" href=\"https:\/\/www.youtube.com\/user\/ozono21\/videos?sort=p&amp;view=0&amp;flow=grid\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2014\/06\/Videos-Youtube.png\" alt=\"Videos Youtube\" width=\"600\" height=\"25\" border=\"0\" \/><\/a><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/P><\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" width=\"640\" height=\"480\" src=\"https:\/\/www.youtube.com\/embed\/rzeWAeUnGLA\" 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_5198322\" class=\"pvc_stats total_only  \" data-element-id=\"5198322\" 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>Las bacterias han desarrollado diferentes sistemas para segregar prote\u00ednas en el fluido que las rodea o hacia dentro de otras c\u00e9lulas. Algunas bacterias, por ejemplo, tienen estructuras externas comparables a una jeringuilla, que pueden clavar en otras c\u00e9lulas para inyectarles &hellip; <a href=\"https:\/\/www.ozono21.com\/blog\/toxinas\/bacterias-disparar-dardos-toxicos\/\">Sigue leyendo <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_5198322\" class=\"pvc_stats total_only  \" data-element-id=\"5198322\" 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},"author":1,"featured_media":5198324,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5,4],"tags":[19,65,21,36],"class_list":["post-5198322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bacterias","category-toxinas","tag-bacterias-2","tag-desinfeccion","tag-salud-2","tag-toxinas-2"],"a3_pvc":{"activated":true,"total_views":3036,"today_views":0},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bacterias capaces disparar dardos t\u00f3xicos<\/title>\n<meta name=\"description\" content=\"Bacterias son capaces de disparar dardos t\u00f3xicos. Bacterias desarrolllan sistemas para segregar prote\u00ednas que rodea o dentro de otras c\u00e9lulas\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ozono21.com\/blog\/toxinas\/bacterias-disparar-dardos-toxicos\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bacterias capaces disparar dardos t\u00f3xicos\" \/>\n<meta property=\"og:description\" content=\"Bacterias son capaces de disparar dardos t\u00f3xicos. 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