{"id":6276,"date":"2016-09-22T19:39:09","date_gmt":"2016-09-22T22:39:09","guid":{"rendered":"https:\/\/blog.mindthegraph.com\/?p=6276"},"modified":"2022-10-18T08:10:47","modified_gmt":"2022-10-18T11:10:47","slug":"tartigrades-superpowers","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/sv_se\/tartigrades-superkrafter\/","title":{"rendered":"Tartigrades superkrafter \u00e4r verkliga?"},"content":{"rendered":"

Tartigrades superkrafter \u00e4r ett trendigt \u00e4mne \u00f6ver hela v\u00e4rlden. Men precis n\u00e4r du trodde att naturen inte kunde bli galnare \u00f6verraskar den dig igen.<\/p>\n

Tartigrader \u00e4r redan k\u00e4nda som de mest motst\u00e5ndskraftiga djuren p\u00e5 jorden. De fick denna etikett p\u00e5 grund av sin motst\u00e5ndskraft mot str\u00e5lning, h\u00f6ga tryck och extrema temperaturer. Det \u00e4r d\u00e4rf\u00f6r ingen \u00f6verraskning att detta lilla djur har v\u00e4ckt en rad nya fr\u00e5gor om hur evolutionen kan ha g\u00e5tt till.<\/p>\n

\"Tartigrades<\/a><\/p>\n

Denna vecka, en ny unders\u00f6kning som publicerats i Nature<\/a>avsl\u00f6jade mycket mer om tartigrades superkrafter.<\/p>\n

Efter att ha sekvenserat tartigrades genom identifierade Takekazu Kunieda och hans forskargrupp ett protein som skyddar DNA n\u00e4r det uts\u00e4tts f\u00f6r str\u00e5lning. Detta protein finns bara i tartigrader. Kunieda unders\u00f6ker dock f\u00f6r n\u00e4rvarande hur samma protein kan inf\u00f6ras i m\u00e4nniskor och skydda m\u00e4nskligt DNA.<\/p>\n

\u00a0\"Det \u00e4r fantastiskt att se att en enda gen r\u00e4cker f\u00f6r att i en kultur av m\u00e4nskliga celler f\u00f6rb\u00e4ttra deras tolerans mot str\u00e5lning. Vi tror att detta protein kan fungera som en fysisk sk\u00f6ld f\u00f6r att skydda m\u00e4nskligt DNA fr\u00e5n attacker.\"<\/p><\/blockquote>\n

Hemligheten bakom tartigrades superkrafter \u00e4r deras f\u00f6rm\u00e5ga att motst\u00e5 extrem uttorkning. Tartigrader kan \u00f6verleva med bara 1% vatten och sedan \u00e5terkomma till livet som om ingenting hade h\u00e4nt. Enligt Kunieda delar tartigraderna sitt DNA i sm\u00e5 bitar och s\u00e4nker sin livsaktivitet till 0,01%. N\u00e4r de g\u00f6ms igen reparerar DNA:t sig sj\u00e4lvt och deras livsaktivitet \u00e5terg\u00e5r till 100%.<\/p>\n

Genomsekvenseringen tyder ocks\u00e5 p\u00e5 att de flesta av tartigrades gener kommer fr\u00e5n andra djur genom en process som kallas \"horisontell gen\u00f6verf\u00f6ring\". H\u00e4r \u00e4r en infografik som sammanfattar Kuniedas forskning:<\/p>\n

\"Tartigrades<\/a><\/p>\n

 <\/p>\n

Tartigrader kanske inte verkar vara ett intressant studieobjekt. Men n\u00e4r du st\u00e4ller r\u00e4tt fr\u00e5ga kan du hitta n\u00e5got fantastiskt, t.ex. djurens superkrafter.<\/p>\n

K\u00e4nner du dig exalterad \u00f6ver Kuniedas vetenskapliga artikel? Se till att forskarna ocks\u00e5 blir entusiastiska \u00f6ver din forskning!<\/p>\n

\"Tartigrades<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Tartigrades superkrafter \u00e4r ett trendigt \u00e4mne \u00f6ver hela v\u00e4rlden. Men precis n\u00e4r du trodde att naturen inte kunde bli galnare \u00f6verraskar den dig igen. Tartigrader \u00e4r redan k\u00e4nda som de mest motst\u00e5ndskraftiga djuren p\u00e5 jorden. De fick denna etikett p\u00e5 grund av sin motst\u00e5ndskraft mot str\u00e5lning, h\u00f6ga tryck och extrema temperaturer. Det \u00e4r ingen \u00f6verraskning [...]<\/p>","protected":false},"author":11,"featured_media":6278,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":[],"categories":[959,28],"tags":[554],"yoast_head":"\nTartigrades superpowers are real? - Mind the Graph Blog<\/title>\n<meta name=\"description\" content=\"The tartigrades superpowers are a trending topic all around the world. 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