{"id":48417,"date":"2026-02-17T10:30:20","date_gmt":"2026-02-17T07:30:20","guid":{"rendered":"https:\/\/ekonomigundemi.com.tr\/index.php\/2026\/02\/17\/arastirmacilar-modern-antibiyotiklere-direncli-5-bin-yillik-bakteriler-kesfetti"},"modified":"2026-02-17T10:30:20","modified_gmt":"2026-02-17T07:30:20","slug":"arastirmacilar-modern-antibiyotiklere-direncli-5-bin-yillik-bakteriler-kesfetti","status":"publish","type":"post","link":"https:\/\/ekonomigundemi.com.tr\/index.php\/2026\/02\/17\/arastirmacilar-modern-antibiyotiklere-direncli-5-bin-yillik-bakteriler-kesfetti\/","title":{"rendered":"Ara\u015ft\u0131rmac\u0131lar, modern antibiyotiklere diren\u00e7li 5 bin y\u0131ll\u0131k bakteriler ke\u015ffetti"},"content":{"rendered":"<p>Frontiers in Microbiology&#039;de yay\u0131nlanan yeni bir \u00e7al\u0131\u015fmaya g\u00f6re, Purcarea ve ekibi, Sc\u0103ri\u0219oara Buz Ma\u011faras\u0131&#039;ndaki 5 bin y\u0131ll\u0131k bir buz tabakas\u0131ndan bir Psychrobacter su\u015fu izole etti.1 Ara\u015ft\u0131rmac\u0131lar, t\u00fcm genom dizileme y\u00f6ntemini kullanarak, bu antik bakterinin modern antibiyotiklere kar\u015f\u0131 diren\u00e7 ta\u015f\u0131d\u0131\u011f\u0131n\u0131, ayr\u0131ca diren\u00e7le ilgili genler ve di\u011fer &#8220;s\u00fcper mikroplar\u0131&#8221; \u00f6ld\u00fcrme potansiyeline sahip genler i\u00e7erdi\u011fini buldu.<\/p>\n<p>Bu bulgular, antik genomlar\u0131n bilim insanlar\u0131n\u0131n antibiyotik direncinin ard\u0131ndaki mekanizmalar hakk\u0131nda daha derin bilgiler edinmelerine yard\u0131mc\u0131 olabilece\u011fini g\u00f6steriyor.<\/p>\n<p>Ara\u015ft\u0131rmac\u0131lar, 25 metrelik bir buz \u00e7ekirde\u011fi deldikleri Scari\u0219oara Buz Ma\u011faras\u0131&#039;na gittiler. Bu eski buz \u00f6rne\u011finden, daha sonra safla\u015ft\u0131r\u0131p Psychrobacter SC65A.3 su\u015fu olarak tan\u0131mlad\u0131klar\u0131 turuncu ve pembe pigmentli bir bakteri kolonisinin ortaya \u00e7\u0131kt\u0131\u011f\u0131n\u0131 g\u00f6zlemlediler.<\/p>\n<p>Genomik analiz, yeni bakterinin d\u00fc\u015f\u00fck s\u0131cakl\u0131k ortamlar\u0131na adaptasyonla ili\u015fkili 45 gen ta\u015f\u0131d\u0131\u011f\u0131n\u0131 ve bu sayede a\u015f\u0131r\u0131 so\u011fukta hayatta kalabildi\u011fini ortaya koydu. Ara\u015ft\u0131rmac\u0131lar antibiyotik diren\u00e7 profilini incelediklerinde, SC65A.3&#039;\u00fcn test edilen 28 modern antibiyoti\u011fin 10&#039;una diren\u00e7li oldu\u011funu buldular. Toplamda, genom 100&#039;den fazla diren\u00e7le ilgili gen i\u00e7eriyordu.<\/p>\n<p>Purcarea bir bas\u0131n a\u00e7\u0131klamas\u0131nda, &#8220;Binlerce y\u0131ll\u0131k ma\u011fara buz yataklar\u0131ndan elde edilen Psychrobacter SC65A.3 gibi mikroplar\u0131 incelemek, antibiyotik direncinin modern antibiyotikler kullan\u0131lmadan \u00e7ok \u00f6nce \u00e7evrede do\u011fal olarak nas\u0131l evrimle\u015fti\u011fini ortaya koyuyor&#8221; dedi.<\/p>\n<p>Ara\u015ft\u0131rmac\u0131lar, direncin \u00f6tesinde, bakterinin benzersiz enzimler ve antimikrobiyal bile\u015fikler \u00fcretme potansiyelini de incelediler. \u00d6zellikle, bilinmeyen i\u015flevlere sahip yakla\u015f\u0131k 600 gen tespit ettiler; bu da yeni biyolojik mekanizmalar\u0131n geni\u015f ve hen\u00fcz ke\u015ffedilmemi\u015f bir rezervuar\u0131na i\u015faret ediyor. Genom ayr\u0131ca di\u011fer bakteri, mantar ve vir\u00fcsleri engelleyebilecek veya \u00f6ld\u00fcrebilecek 11 gen i\u00e7eriyordu.<\/p>\n<p>Bu bulgulara dayanarak, ara\u015ft\u0131rmac\u0131lar buz ma\u011faralar\u0131 gibi a\u015f\u0131r\u0131 ortamlardan gelen mikroplar\u0131 incelemenin potansiyeline vurgu yapt\u0131lar. Purcarea, &#8220;Bu kadim bakteriler bilim ve t\u0131p i\u00e7in \u00e7ok \u00f6nemlidir&#8221; dedi.<\/p>\n<p> <strong><\/strong><br \/>\nEKONOM\u0130 GAZETES\u0130 <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Stockholm, 17 \u015eubat (Hibya) &#8211; Romanya Akademisi B\u00fckre\u015f Biyoloji Enstit\u00fcs\u00fc&#8217;nde mikrobiyolog olan Cristina Purcarea liderli\u011findeki bilim ekibi, 5 bin y\u0131ll\u0131k ma\u011fara buz katmanlar\u0131nda ke\u015ffedilen bir bakteri t\u00fcr\u00fcn\u00fc incelediklerinde, 10 modern antibiyoti\u011fe diren\u00e7li oldu\u011funu ve diren\u00e7le ilgili daha fazla gen bar\u0131nd\u0131rd\u0131\u011f\u0131n\u0131 buldular.<\/p>\n","protected":false},"author":1,"featured_media":48418,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAow07ekDA:productID":"","footnotes":""},"categories":[4,13],"tags":[],"class_list":["post-48417","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dunya","category-teknoloji"],"_links":{"self":[{"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/48417","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=48417"}],"version-history":[{"count":0,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/48417\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/media\/48418"}],"wp:attachment":[{"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=48417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=48417"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=48417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}