{"id":27406,"date":"2014-02-14T21:00:41","date_gmt":"2014-02-14T19:00:41","guid":{"rendered":"http:\/\/www.floracantabrica.com\/?p=27406"},"modified":"2014-02-14T21:00:41","modified_gmt":"2014-02-14T19:00:41","slug":"peces-mutantes-se-adaptan-a-las-aguas-contaminadas-en-ee-uu-mutant-fish-adapt-to-the-water-polluted-in-the-united-states","status":"publish","type":"post","link":"http:\/\/www.floracantabrica.com\/?p=27406","title":{"rendered":"Peces mutantes se adaptan a las aguas contaminadas en EE.UU.Mutant fish adapt to the water polluted in the United States"},"content":{"rendered":"

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Peces mutantes se adaptan a las aguas contaminadas en EE.UU.<\/span><\/strong> <\/span><\/strong><\/span><\/p>\n

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Mutant<\/span><\/strong> fish adapt to the water polluted in the United States<\/span><\/strong><\/span><\/p>\n

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.<\/span><\/strong> RT Actualidad<\/a> \/ Ciencia<\/a><\/span><\/span><\/strong> <\/strong><\/span><\/p>\n

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Etnopaisaje.com + dibujos<\/span><\/strong><\/span><\/p>\n

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Gracias a cambios gen\u00e9ticos provocados por los metales pesados, solo una especie de peces ha logrado sobrevivir en las aguas altamente contaminadas de una zona portuaria de EE.UU<\/span><\/strong><\/span><\/p>\n

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El ciprinod\u00f3ntido atl\u00e1ntico<\/span><\/span><\/strong>, un pez de estuario de pocos cent\u00edmetros de longitud,\u00a0ha logrado adaptarse a las aguas del puerto de\u00a0New Bedford, en Massachusetts, que durante d\u00e9cadas han sido contaminadas por\u00a0metales pesados y otras\u00a0sustancias t\u00f3xicas, informa la revista especializada ‘BMC Evolutionary Biology<\/a>‘.
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\nLos investigadores de la Instituci\u00f3n Oceanogr\u00e1fica Woods Hole (WHOI) descubrieron que esta adaptaci\u00f3n se hizo posible gracias a ciertos\u00a0cambios gen\u00e9ticos<\/a> relacionados con a la prote\u00edna llamada ‘AhR2’<\/strong>, que en circunstancias normales es responsable del\u00a0funcionamiento celular. <\/span><\/span><\/p>\n

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\u00abNormalmente, cuando los peces est\u00e1n expuestos a sustancias qu\u00edmicas peligrosas, su cuerpo intensifica la producci\u00f3n de enzimas que descomponen los contaminantes, un proceso controlado por la prote\u00edna AhR2″, seg\u00fan la publicaci\u00f3n.\u00a0Pero no todas las sustancias pueden descomponerse de esta manera, y su est\u00edmulo continuo de la AhR2 interrumpe las funciones celulares, lo que lleva a la toxicidad\u00bb, seg\u00fan la publicaci\u00f3n.
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\nLos peces del puerto de\u00a0New Bedford, sin embargo, han evolucionado, logrando que el sistema de la AhR2 se haya vuelto resistente a este efecto, lo que\u00a0hace que la zona sea menos t\u00f3xica para ellos. Gracias a ello, a diferencia de otros peces,\u00a0el ciprinod\u00f3ntido <\/span>no necesita salir del puerto durante los meses de verano para alimentarse, y vive en sus aguas durante todo el a\u00f1o, pasando los inviernos escondidos en el sedimento contaminado. <\/span><\/span><\/p>\n

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Thanks to genetic changes caused by heavy metals, only one species of fish has <\/span>managed<\/span> to survive in the highly polluted waters of a port area of EE.UU<\/span><\/span><\/p>\n

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The Atlantic ciprinodontido, a fish of estuary of few centimeters in length, has managed to adapt to the waters of the port of New Bedford, Massachusetts, who for decades have been contaminated by heavy metals and other toxic substances, according to the magazine ‘BMC Evolutionary Biology’.<\/span><\/span><\/p>\n

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Researchers from the Woods Hole Oceanographic Institution (WHOI) discovered that this adaptation was made possible thanks to certain genetic changes related to a protein called ‘AhR2’, which <\/span>in<\/span> normal circumstances is responsible for cell functioning.<\/span><\/span><\/p>\n

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\u00abNormally, when the fish are exposed to hazardous chemicals, his body intensified the production of enzymes that break down the contaminants, a process controlled by the protein AhR2\u00bb, according to the publication. But not all substances can decompose in this way, and its continuous stimulation of the AhR2 disrupts cell functions, leading to toxicity,\u00bbaccording to the publication.<\/span><\/span><\/p>\n

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Fish from the port of New Bedford, however, evolved, achieving that the AhR2 system has become resistant to this effect, which makes the area less toxic for them. As a result, unlike other fish, the ciprinodontido does not need to leave the port during the summer months to feed, and lives in its waters throughout the year, spending the winters in the contaminated sediment<\/span><\/span><\/p>\n

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Tweet…………… Peces mutantes se adaptan a las aguas contaminadas en EE.UU. … …… ….. Mutant fish adapt to the water polluted in the United States .. … . RT Actualidad \/ Ciencia .. .. Etnopaisaje.com + dibujos . . .. . . Gracias a cambios gen\u00e9ticos provocados por los metales pesados, solo una especie de […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-27406","post","type-post","status-publish","format-standard","hentry","category-etnopaisaje"],"_links":{"self":[{"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/posts\/27406","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27406"}],"version-history":[{"count":5,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/posts\/27406\/revisions"}],"predecessor-version":[{"id":27412,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=\/wp\/v2\/posts\/27406\/revisions\/27412"}],"wp:attachment":[{"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27406"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27406"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.floracantabrica.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27406"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}