{"id":48961,"date":"2024-03-09T05:36:28","date_gmt":"2024-03-09T04:36:28","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=48961"},"modified":"2024-03-09T05:36:28","modified_gmt":"2024-03-09T04:36:28","slug":"vedci-objevili-cernobylske-super-cervy","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2024\/03\/09\/vedci-objevili-cernobylske-super-cervy\/","title":{"rendered":"V\u011bdci objevili \u010dernobylsk\u00e9 \u201esuper \u010dervy\u201c"},"content":{"rendered":"<div id=\"fb-root\"><\/div>\n<p><span style=\"font-size: 18pt;\"><strong>Hl\u00edstice nalezen\u00e9 ve vysoce radioaktivn\u00ed z\u00f3n\u011b nevykazovaly \u017e\u00e1dn\u00e9 zn\u00e1mky po\u0161kozen\u00ed DNA<\/strong><\/span><\/p>\n<p><span>T\u00fdm americk\u00fdch v\u011bdc\u016f zjistil, \u017ee DNA b\u011b\u017en\u00e9ho druhu \u010derva se zd\u00e1 b\u00fdt imunn\u00ed v\u016f\u010di po\u0161kozen\u00ed chronick\u00fdm z\u00e1\u0159en\u00edm v uzav\u0159en\u00e9 z\u00f3n\u011b \u010cernobylu.\u00a0Tato oblast je pro lidi zak\u00e1z\u00e1na od hav\u00e1rii jadern\u00e9 elektr\u00e1rny v roce 1986.<\/span><\/p>\n<p><span>Profesor biologie z New York University (NYU) Matthew Rockman a postdoktorandka Sophia Tintoriov\u00e1 nav\u0161t\u00edvili v roce 2019 \u010dernobylskou z\u00f3nu (CEZ) a shrom\u00e1\u017edili vzorky druhu h\u00e1\u010f\u00e1tka zvan\u00e9ho Oscheius tipulae.<\/span><\/p>\n<p><em><span>&#8222;Tito \u010dervi \u017eij\u00ed v\u0161ude a \u017eij\u00ed rychle, tak\u017ee proch\u00e1zej\u00ed des\u00edtkami generac\u00ed evoluce, zat\u00edmco typick\u00fd obratlovec si st\u00e1le obouv\u00e1 boty,&#8220;<\/span><\/em><span>\u00a0uvedl Rockman v tiskov\u00e9 zpr\u00e1v\u011b, kter\u00e1 tento t\u00fdden ozn\u00e1mila v\u00fdsledky studie.<\/span><\/p>\n<p><span>Vyzbrojeni Geigerov\u00fdmi po\u010d\u00edtadly a oble\u010den\u00ed v ochrann\u00fdch pom\u016fck\u00e1ch sb\u00edrali vzorky p\u016fdy, hnij\u00edc\u00edho ovoce a dal\u0161\u00edho organick\u00e9ho materi\u00e1lu, kter\u00fd obsahoval \u010dervy, a vybrali si m\u00edsta s r\u016fzn\u00fdm mno\u017estv\u00edm radiace.<\/span><\/p>\n<p><span>Rockman a Tintori sekvenovali genomy 15 \u010derv\u016f, kter\u00e9 shrom\u00e1\u017edili z \u010cernobylu, a porovnali je s p\u011bti liniemi hl\u00edstic shrom\u00e1\u017ed\u011bn\u00fdch jinde.\u00a0Zat\u00edmco linie \u010derv\u016f se li\u0161ily v tom, jak tolerovaly po\u0161kozen\u00ed DNA, tyto rozd\u00edly neodpov\u00eddaly \u00farovn\u00edm radiace v m\u00edstech odb\u011bru.<\/span><\/p>\n<p><span>V\u011bdci\u00a0<\/span><em><span>&#8222;nedok\u00e1zali detekovat zn\u00e1mky po\u0161kozen\u00ed z\u00e1\u0159en\u00edm&#8220;<\/span><\/em><span>\u00a0v \u010dernobylsk\u00fdch \u010dervech, \u0159ekli.\u00a0Tintori a Rockman sice d\u00e1vali pozor, abychom ned\u011blali ukvapen\u00e9 z\u00e1v\u011bry, ale vyj\u00e1d\u0159ili nad\u011bji, \u017ee by tento v\u00fdzkum mohl b\u00fdt u\u017eite\u010dn\u00fd nap\u0159\u00edklad p\u0159i l\u00e9\u010db\u011b rakoviny.\u00a0Jejich studie byla publikov\u00e1na v \u010dasopise\u00a0<\/span><a href=\"https:\/\/www.pnas.org\/doi\/full\/10.1073\/pnas.2314793121\"><span>Proceedings of the National Academy of Sciences (PNAS)<\/span><\/a><span>\u00a0.\u00a0<\/span><\/p>\n<p><span>Ned\u00e1vn\u00e1 studie z Princetonu tak\u00e9 zjistila, \u017ee vlci \u017eij\u00edc\u00ed v \u010cEZ maj\u00ed vysokou odolnost v\u016f\u010di rakovin\u011b.<\/span><\/p>\n<p><span>Jeden ze \u010dty\u0159 reaktor\u016f v \u010dernobylsk\u00e9 jadern\u00e9 elektr\u00e1rn\u011b explodoval v dubnu 1986 a uvolnil 400kr\u00e1t v\u00edce radiace ne\u017e atomov\u00e1 bomba svr\u017een\u00e1 na Hiro\u0161imu v Japonsku b\u011bhem druh\u00e9 sv\u011btov\u00e9 v\u00e1lky.\u00a0Z nedalek\u00e9ho m\u011bsta Pripja\u0165 bylo evakuov\u00e1no p\u0159es 100 000 lid\u00ed.\u00a0Cel\u00e1 oblast, asi 100 km severn\u011b od Kyjeva, je od t\u00e9 doby pova\u017eov\u00e1na za nebezpe\u010dnou pro lidsk\u00e9 bydlen\u00ed.\u00a0<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-1185\" src=\"http:\/\/www.infokuryr.cz\/n\/wp-content\/uploads\/2021\/04\/kuryr-podpis.png\" alt=\"\" width=\"84\" height=\"24\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hl\u00edstice nalezen\u00e9 ve vysoce radioaktivn\u00ed z\u00f3n\u011b nevykazovaly \u017e\u00e1dn\u00e9 zn\u00e1mky po\u0161kozen\u00ed DNA T\u00fdm americk\u00fdch v\u011bdc\u016f zjistil,&#8230;<\/p>\n","protected":false},"author":2,"featured_media":48962,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[1970,2555,895,1969,1561],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/48961"}],"collection":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/comments?post=48961"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/48961\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/48962"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=48961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=48961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=48961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}