Jeta ekziston n\u00eb mjedise ekstreme n\u00eb Tok\u00eb, nga shkret\u00ebtira t\u00eb thata dhe tundra t\u00eb ngrira deri n\u00eb kanalet termike, toksike n\u00eb shtrirjet m\u00eb t\u00eb thella t\u00eb dyshemes\u00eb s\u00eb oqeanit. Por nuk mund t\u00eb ekzistoj\u00eb n\u00eb \u00e7do p\u00ebll\u00ebmb\u00eb t\u00eb planetit dhe shkenc\u00ebtar\u00ebt kan\u00eb zbuluar nj\u00eb vend n\u00eb Etiopi, ku jeta nuk mund mund t\u00eb ekzistoj\u00eb.<\/p>\n
N\u00eb kontrast me hulumtimet e m\u00ebparshme, shkenc\u00ebtar\u00ebt kryen teste t\u00eb shumta dhe zbuluan se nuk ka jt\u00eb, madje as mikroorganizma, n\u00eb Dallol. Nj\u00eb nga mjediset m\u00eb ekstreme t\u00eb Tok\u00ebs, Dallol \u00ebsht\u00eb jasht\u00ebzakonisht i nxeht\u00eb, i kripur dhe acid. Pellgjet e saj shtrihen n\u00eb nj\u00eb krater vullkanik, t\u00eb mbushur me krip\u00eb dhe gaze toksike. Edhe gjat\u00eb dimrit, temperaturat dit\u00ebn mund t\u00eb kalojn\u00eb 113 grad\u00eb Celsius. Disa nga pishinat hiper-acidike dhe t\u00eb kripura kan\u00eb vlera negative t\u00eb pH.<\/p>\n
\u201cPas analizimit t\u00eb shum\u00eb mostrave, kemi verifikuar se nuk ka jet\u00eb mikrobike n\u00eb k\u00ebto pishina t\u00eb kripura, t\u00eb nxehta dhe hiperacide, \u201ctha Purificaci\u00f3n L\u00f3pez Garc\u00eda, autor i studimit dhe biolog n\u00eb Qendr\u00ebn Komb\u00ebtare Franceze p\u00ebr K\u00ebrkime Shkencore.<\/p>\n
Sidoqoft\u00eb, jasht\u00eb pellgjeve, \u00ebsht\u00eb nj\u00eb histori ndryshe.<\/p>\n
N\u00eb pamje t\u00eb par\u00eb, mineralet e pasura me silic\u00eb mund t\u00eb imitojn\u00eb qelizat mikrobike, than\u00eb studiuesit. Por analiza e tyre zbuloi ndryshimin.<\/p>\n
\u201cN\u00eb studime t\u00eb tjera, k\u00ebto grimca minerale mund t\u00eb jen\u00eb interpretuar si qeliza t\u00eb fosilizuara, kur n\u00eb realitet ato formohen spontanisht n\u00eb sh\u00ebllir\u00eb, edhe pse nuk ka jet\u00eb,\u201d tha L\u00f3pez Garc\u00eda .<\/p>\n
Shkenc\u00ebtar\u00ebt kan\u00eb p\u00ebrdorur prova t\u00eb jet\u00ebs n\u00eb ambiente ekstreme n\u00eb Tok\u00eb, si nj\u00eb analog p\u00ebr kushtet kur jeta mund t\u00eb ekzistoj\u00eb n\u00eb planet\u00eb t\u00eb tjer\u00eb n\u00eb sistemin ton\u00eb diellor ose p\u00ebrtej tij. Studiuesit paralajm\u00ebruan se n\u00eb k\u00ebt\u00eb rast, thjesht sepse ekziston uj\u00eb i l\u00ebngsh\u00ebm ose sepse di\u00e7ka i ngjan qelizave ose aspekteve t\u00eb tjera biologjike n\u00ebn mikroskop, nuk do t\u00eb thot\u00eb se ekziston jeta.<\/p>\n
\u201cStudimi yn\u00eb paraqet prova q\u00eb ka vende n\u00eb sip\u00ebrfaqen e Tok\u00ebs, si\u00e7 jan\u00eb pishinat Dallol, t\u00eb cilat jan\u00eb sterile edhe pse ato p\u00ebrmbajn\u00eb uj\u00eb t\u00eb l\u00ebngsh\u00ebm,\u201d tha L\u00f3pez Garc\u00eda.<\/p>\n
Pellgjet Dallol n\u00eb t\u00eb v\u00ebrtet\u00eb parandalojn\u00eb formimin e jet\u00ebs sepse ato p\u00ebrmbajn\u00eb pengesa kimike si krip\u00ebrat kaotropike t\u00eb magnezit q\u00eb ndihmojn\u00eb n\u00eb prishjen e hidrogjenit. Kombinuar me mjedisin e kripur, acid dhe t\u00eb nxeht\u00eb, jeta nuk merr asnj\u00eb evolim n\u00eb pishina.<\/p>\n
\u201cNe nuk do t\u00eb presim q\u00eb t\u00eb gjenim forma jete n\u00eb mjedise t\u00eb ngjashme n\u00eb planet\u00eb t\u00eb tjer\u00eb, t\u00eb pakt\u00ebn kjo bazuar n\u00eb nj\u00eb biokimi t\u00eb ngjashme me biokiminin\u00eb tok\u00ebsore\u201d, tha L\u00f3pez Garc\u00eda.<\/p>\n
Studiuesit do t\u00eb vazhdojn\u00eb studimin e pishinave p\u00ebr t\u00eb p\u00ebrcaktuar m\u00eb shum\u00eb rreth kufijve t\u00eb jet\u00ebs.<\/p>\n","protected":false},"excerpt":{"rendered":"
Jeta ekziston n\u00eb mjedise ekstreme n\u00eb Tok\u00eb, nga shkret\u00ebtira t\u00eb thata dhe tundra t\u00eb ngrira deri n\u00eb kanalet termike, toksike n\u00eb shtrirjet m\u00eb t\u00eb thella t\u00eb dyshemes\u00eb s\u00eb oqeanit. Por nuk mund t\u00eb ekzistoj\u00eb n\u00eb \u00e7do p\u00ebll\u00ebmb\u00eb t\u00eb planetit dhe shkenc\u00ebtar\u00ebt kan\u00eb zbuluar nj\u00eb vend n\u00eb Etiopi, ku jeta nuk mund mund t\u00eb ekzistoj\u00eb. N\u00eb […]<\/p>\n","protected":false},"author":2013,"featured_media":115474,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[241,191],"tags":[],"class_list":{"0":"post-115473","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-aktualitet","8":"category-bota"},"_links":{"self":[{"href":"https:\/\/zjarr.tv\/sq\/wp-json\/wp\/v2\/posts\/115473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zjarr.tv\/sq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zjarr.tv\/sq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zjarr.tv\/sq\/wp-json\/wp\/v2\/users\/2013"}],"replies":[{"embeddable":true,"href":"https:\/\/zjarr.tv\/sq\/wp-json\/wp\/v2\/comments?post=115473"}],"version-history":[{"count":0,"href":"https:\/\/zjarr.tv\/sq\/wp-json\/wp\/v2\/posts\/115473\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zjarr.tv\/sq\/wp-json\/wp\/v2\/media\/115474"}],"wp:attachment":[{"href":"https:\/\/zjarr.tv\/sq\/wp-json\/wp\/v2\/media?parent=115473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zjarr.tv\/sq\/wp-json\/wp\/v2\/categories?post=115473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zjarr.tv\/sq\/wp-json\/wp\/v2\/tags?post=115473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}