Bilim insanlar\u0131, Gr\u00f6nland k\u0131y\u0131lar\u0131nda bir buzda\u011f\u0131n\u0131 incelerken damarlar\u0131nda floresan ye\u015fili gibi bir parlama olmas\u0131n\u0131 sa\u011flayan antifriz proteinleri bar\u0131nd\u0131ran bir bal\u0131k ke\u015ffettiler.<\/b><\/p>\n
Kuzey Kutbu buzda\u011f\u0131n\u0131n derinliklerinde sondaj yapan bilim insanlar\u0131 ke\u015ffettikleri bal\u0131kla hayrete d\u00fc\u015ft\u00fcler.<\/p>\n
Ara\u015ft\u0131rmac\u0131lar\u0131n ke\u015fifleri sonunda bu kadar \u015fa\u015f\u0131rmalar\u0131n\u0131n nedeni ise bal\u0131\u011f\u0131n floresan \u0131\u015f\u0131\u011f\u0131 ile v\u00fccudunun ayd\u0131nlanmas\u0131yd\u0131. Yeni ara\u015ft\u0131rmaya g\u00f6re, bu parlaman\u0131n nedeni ise \u015fimdiye kadar bulunan antifriz proteinlerinin en y\u00fcksek ekspresyon seviyelerini i\u00e7eren kan\u0131ndan kaynaklan\u0131yor.<\/p>\n
Proteinler ilk olarak 50 y\u0131l \u00f6nce, Antarktika bal\u0131k t\u00fcrleri bulundu\u011funda hayatta nas\u0131l kald\u0131klar\u0131 incelenirken ke\u015ffedildi.<\/p>\n
Amerikan Do\u011fa Tarihi M\u00fczesi\u2019nde ara\u015ft\u0131rma g\u00f6revlisi ve New York City \u00dcniversitesi Baruch Koleji\u2019nde biyoloji profes\u00f6r\u00fc olan David Gruber \u015funlar\u0131 s\u00f6yledi: \u201cSalyangoz bal\u0131\u011f\u0131, buzda\u011flar\u0131 aras\u0131nda, yar\u0131klarda ya\u015fayan birka\u00e7 bal\u0131k t\u00fcr\u00fcnden biri. Bu kadar k\u00fc\u00e7\u00fcc\u00fck bir bal\u0131\u011f\u0131n bu kadar a\u015f\u0131r\u0131 so\u011fuk bir ortamda donmadan ya\u015fayabilmesi \u015fa\u015f\u0131rt\u0131c\u0131.\u201d<\/p>\n
Parlak ye\u015fil par\u0131lt\u0131, buzlu ortam\u0131nda bal\u0131\u011f\u0131n v\u00fccut s\u0131cakl\u0131\u011f\u0131n\u0131 korumaya yard\u0131mc\u0131 olan evrimsel bir geli\u015fme.<\/p>\n
So\u011fukkanl\u0131 s\u00fcr\u00fcngenler ve b\u00f6ceklerin aksine, bal\u0131klar v\u00fccut s\u0131cakl\u0131klar\u0131 d\u00fc\u015ferse ve v\u00fccut s\u0131v\u0131lar\u0131 donarsa hayatta kalamazlar, bu nedenle daha so\u011fuk iklimlerde ya\u015fayanlar kendilerini hayatta tutman\u0131n yollar\u0131n\u0131 bulmak zorundalar.<\/p>\n
Biyofloresan, canl\u0131lar\u0131n mavi \u0131\u015f\u0131\u011f\u0131 ye\u015fil, k\u0131rm\u0131z\u0131 veya sar\u0131 \u0131\u015f\u0131\u011fa d\u00f6n\u00fc\u015ft\u00fcrebildi\u011finde ortaya \u00e7\u0131kar; ancak kutuplarda uzun karanl\u0131k d\u00f6nemler oldu\u011fundan, bu \u00f6zelli\u011fe son derece nadiren rastlan\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":"
Bilim insanlar\u0131, Gr\u00f6nland k\u0131y\u0131lar\u0131nda bir buzda\u011f\u0131n\u0131 incelerken damarlar\u0131nda floresan ye\u015fili gibi bir parlama olmas\u0131n\u0131 sa\u011flayan antifriz …<\/p>\n","protected":false},"author":1,"featured_media":28439,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[2214],"class_list":["post-28438","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji","tag-balik"],"_links":{"self":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts\/28438","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=28438"}],"version-history":[{"count":1,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts\/28438\/revisions"}],"predecessor-version":[{"id":28440,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts\/28438\/revisions\/28440"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/media\/28439"}],"wp:attachment":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28438"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28438"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28438"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}