{"id":22477,"date":"2021-04-30T10:50:39","date_gmt":"2021-04-30T16:50:39","guid":{"rendered":"https:\/\/otech.uaeh.edu.mx\/noti\/?p=22477"},"modified":"2021-04-30T10:52:00","modified_gmt":"2021-04-30T16:52:00","slug":"bacterias-evolucionan-en-meses-en-respuesta-al-cambio-climatico","status":"publish","type":"post","link":"https:\/\/otech.uaeh.edu.mx\/noti\/ecologia\/bacterias-evolucionan-en-meses-en-respuesta-al-cambio-climatico\/","title":{"rendered":"Bacterias evolucionan en meses en respuesta al cambio clim\u00e1tico"},"content":{"rendered":"<p class=\"has-drop-cap\" style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Aunque normalmente se piensa que la evoluci\u00f3n ocurre durante millones de a\u00f1os, investigadores han descubierto que las bacterias pueden evolucionar en respuesta al cambio clim\u00e1tico en 18 meses.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><!--more--><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">En un estudio publicado en Proceedings of the National Academy of Sciences, bi\u00f3logos de la Universidad de California en Irvine (UCI) descubrieron que la evoluci\u00f3n es una forma en que los microbios del suelo podr\u00edan lidiar con el calentamiento global.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Los microbiomas del suelo \u2013la colecci\u00f3n de bacterias y otros microbios en el suelo\u2013 son un motor cr\u00edtico del ciclo global del carbono; <\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Los microbios descomponen el material vegetal muerto para reciclar los nutrientes de vuelta al ecosistema y liberar carbono a la atm\u00f3sfera.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">M\u00faltiples factores ambientales influyen en la composici\u00f3n y el funcionamiento de los microbiomas del suelo, pero estas respuestas generalmente se estudian desde una perspectiva ecol\u00f3gica, preguntando qu\u00e9 especies microbianas sufrieron o disminuyeron en abundancia a medida que cambian las condiciones ambientales. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">En el estudio actual, el equipo de la UCI investig\u00f3 si las especies bacterianas en el suelo tambi\u00e9n evolucionan cuando cambia su entorno.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">&#8220;Sabemos que la evoluci\u00f3n puede ocurrir muy r\u00e1pidamente en las bacterias, como en respuesta a los antibi\u00f3ticos, pero no sabemos qu\u00e9 tan importante podr\u00eda ser la evoluci\u00f3n para las bacterias en el medio ambiente con el cambio clim\u00e1tico en curso&#8221;, dijo en un comunicado el doctor Alex Chase, autor principal del estudio y ex estudiante de posgrado en la UCI.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Varias caracter\u00edsticas inherentes deber\u00edan permitir que los microbios del suelo se adapten r\u00e1pidamente a las nuevas condiciones clim\u00e1ticas. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Los microbios son abundantes y pueden reproducirse en solo unas horas, por lo que una mutaci\u00f3n gen\u00e9tica rara que permite la adaptaci\u00f3n a las nuevas condiciones clim\u00e1ticas podr\u00edan ocurrir por casualidad en un corto per\u00edodo de tiempo.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Sin embargo, la mayor parte de lo que se sabe sobre la evoluci\u00f3n bacteriana proviene de experimentos de laboratorio controlados, donde las bacterias se cultivan en frascos con alimentos artificiales. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">No estaba claro si la evoluci\u00f3n ocurre lo suficientemente r\u00e1pido en los suelos como para ser relevante para los efectos de las tasas actuales de cambio clim\u00e1tico.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">\u201cLas predicciones actuales sobre c\u00f3mo el cambio clim\u00e1tico afectar\u00e1 a los microbiomas suponen que las especies microbianas son est\u00e1ticas. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Por lo tanto, quer\u00edamos probar si las bacterias pueden evolucionar r\u00e1pidamente en entornos naturales como el suelo \u201d, describe Chase.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Para medir la evoluci\u00f3n en un entorno natural, los investigadores desplegaron un primer experimento de evoluci\u00f3n bacteriana en el campo, utilizando una bacteria del suelo llamada Curtobacterium. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Los investigadores utilizaron 125 \u201cjaulas microbianas\u201d llenas de alimento microbiano compuesto de material vegetal muerto. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">(Las jaulas permiten el transporte de agua, pero no de otros microbios). <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Luego, las jaulas expusieron a las bacterias a una variedad de condiciones clim\u00e1ticas a trav\u00e9s de un gradiente de elevaci\u00f3n en el sur de California. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">El equipo realiz\u00f3 dos experimentos paralelos durante 18 meses midiendo las respuestas ecol\u00f3gicas y evolutivas en las bacterias.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">\u201cLas jaulas microbianas nos permitieron controlar los tipos de bacterias que estaban presentes, mientras que las expon\u00edamos a diferentes condiciones ambientales en diferentes sitios. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Luego pudimos probar, por ejemplo, c\u00f3mo las condiciones c\u00e1lidas y del sitio des\u00e9rtico afectaban la diversidad gen\u00e9tica de una sola especie de Curtobacterium \u201d, dijo Chase.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Despu\u00e9s de 18 meses, los cient\u00edficos secuenciaron el ADN bacteriano de las jaulas microbianas de los experimentos. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">En el primer experimento que conten\u00eda un microbioma de suelo diverso, diferentes especies de Curtobacterium cambiaron en abundancia, una respuesta ecol\u00f3gica esperada. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">En el segundo experimento durante el mismo per\u00edodo de tiempo, la diversidad gen\u00e9tica de una sola bacteria Curtobacterium cambi\u00f3, revelando una respuesta evolutiva a las mismas condiciones ambientales.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Los autores concluyen que tanto los procesos ecol\u00f3gicos como los evolutivos tienen el potencial de contribuir a c\u00f3mo un microbioma del suelo responde a las condiciones clim\u00e1ticas cambiantes.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">\u201cEl estudio muestra que podemos observar una r\u00e1pida evoluci\u00f3n en los microbios del suelo, y este es un logro emocionante. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Nuestro pr\u00f3ximo objetivo es comprender la importancia de la adaptaci\u00f3n evolutiva de los ecosistemas del suelo bajo el cambio clim\u00e1tico futuro \u201d, dijo la coautora Jennifer Martiny, profesora de ecolog\u00eda y biolog\u00eda evolutiva que codirige la Iniciativa del Microbioma de la UCI.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><strong><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Fuente: europapress.es<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aunque normalmente se piensa que la evoluci\u00f3n ocurre durante millones de a\u00f1os, investigadores han descubierto que las bacterias pueden evolucionar en respuesta al cambio clim\u00e1tico en 18 meses.<\/p>\n","protected":false},"author":1,"featured_media":22478,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[372],"tags":[],"class_list":["post-22477","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ecologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bacterias evolucionan en meses en respuesta al cambio clim\u00e1tico - Observatorio Tecnol\u00f3gico de Hidalgo<\/title>\n<meta name=\"robots\" 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