{"id":10241,"date":"2013-12-12T15:08:05","date_gmt":"2013-12-12T14:08:05","guid":{"rendered":"https:\/\/uniavisen.dk\/?p=10241\/"},"modified":"2017-01-20T23:35:48","modified_gmt":"2017-01-20T23:35:48","slug":"bacteria-bring-ancient-dna-back-to-life","status":"publish","type":"post","link":"https:\/\/uniavisen.dk\/en\/bacteria-bring-ancient-dna-back-to-life\/","title":{"rendered":"Bacteria bring ancient DNA back to life"},"content":{"rendered":"

University of Copenhagen post doc S\u00f8ren Overballe-Petersen, has taken the world of geogenetics by storm.<\/p>\n

With his PhD he has discovered that even ultra-short DNA fragments from a 43,000 year old mammoth bone can be incorporated by living bacteria. Until now, it was thought that the short fragments were biologically inactive and therefore essentially irrelevant.<\/p>\n

The breakthrough has meant S\u00f8ren Overballe-Petersen’s findings have been published in an article in the renowned scientific publication Proceedings of the International Academy of Sciences USA (PNAS)<\/em>.<\/a> <\/p>\n

Bringing DNA back to life<\/h2>\n

S\u00f8ren Overballe-Petersen completed his Master’s in Biochemistry in 2008 and subsequently started his PhD at the Centre for GeoGenetics, both at the University of Copenhagen.<\/p>\n

Here, he discovered that living bacteria can consume very short fragments of DNA from dead bacteria, plants and animals. But instead of digesting the fragments, living bacteria incorporated the DNA into their replication process.<\/p>\n

In this way, ancient DNA becomes a part of the DNA of living cells.<\/p>\n

Understanding bacteria<\/h2>\n

This has implications for the future development of antiobiotics. When short DNA fragments from dead and resistant bacteria can be incorporated in living bacteria, thus passing on resistant genes, it can make it harder and possibly impossible to treat infections with antibiotics. Among other things, this means that sanitation in hospitals will have to be of a higher standard than it is today.<\/p>\n

The motivation behind S\u00f8ren Overballe-Petersen’s PhD, entitled Bacterial natural transformation by highly fragmented and damaged DNA<\/em>, was to better understand the way bacteria works:<\/p>\n

“We have to change our understanding of bacteria, because if we don’t understand them, we will never be able to control them to the extent we hope to,” he says.<\/p>\n

universitypost@adm.ku.dk<\/p>\n

Like us on Facebook <\/a> for features, guides and tips on upcoming events. Follow us on Twitter<\/a> for links to other Copenhagen academia news stories. Sign up for the University Post weekly newsletter here<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Ancient DNA fragments from a 43,000 year old mammoth bone can become active again. This challenges the current understanding of what bacteria are, and has implications for the development of antibiotics<\/p>\n","protected":false},"author":12,"featured_media":10243,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[46],"tags":[],"class_list":["post-10241","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science","expression-news_article"],"acf":[],"aioseo_notices":[],"yoast_head":"\nBacteria bring ancient DNA back to life<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uniavisen.dk\/en\/bacteria-bring-ancient-dna-back-to-life\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bacteria bring ancient DNA back to life\" \/>\n<meta property=\"og:description\" content=\"Ancient DNA fragments from a 43,000 year old mammoth bone can become active again. This challenges the current understanding of what bacteria are, and has implications for the development of antibiotics\" \/>\n<meta property=\"og:url\" content=\"https:\/\/uniavisen.dk\/en\/bacteria-bring-ancient-dna-back-to-life\/\" \/>\n<meta property=\"og:site_name\" content=\"University Post\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/uniavis\" \/>\n<meta property=\"article:published_time\" content=\"-0001-11-30T00:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2017-01-20T23:35:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/uniavisen.dk\/wp-content\/uploads\/2013\/12\/dsc_1806_dxo_small.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"930\" \/>\n\t<meta property=\"og:image:height\" content=\"602\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"MIGRATED_ARTICLES FROM_OLD_SITE\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Uniavisen\" \/>\n<meta name=\"twitter:site\" content=\"@Uniavisen\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"MIGRATED_ARTICLES FROM_OLD_SITE\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/en\\\/bacteria-bring-ancient-dna-back-to-life\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/en\\\/bacteria-bring-ancient-dna-back-to-life\\\/\"},\"author\":{\"name\":\"MIGRATED_ARTICLES FROM_OLD_SITE\",\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/#\\\/schema\\\/person\\\/b4df0b22f9be3943039e58e94c400606\"},\"headline\":\"Bacteria bring ancient DNA back to life\",\"datePublished\":\"-0001-11-30T00:00:00+00:00\",\"dateModified\":\"2017-01-20T23:35:48+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/en\\\/bacteria-bring-ancient-dna-back-to-life\\\/\"},\"wordCount\":329,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/en\\\/bacteria-bring-ancient-dna-back-to-life\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/uniavisen.dk\\\/wp-content\\\/uploads\\\/2013\\\/12\\\/dsc_1806_dxo_small.jpg\",\"articleSection\":[\"Science\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/en\\\/bacteria-bring-ancient-dna-back-to-life\\\/\",\"url\":\"https:\\\/\\\/uniavisen.dk\\\/en\\\/bacteria-bring-ancient-dna-back-to-life\\\/\",\"name\":\"Bacteria bring ancient DNA back to life\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/en\\\/bacteria-bring-ancient-dna-back-to-life\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/en\\\/bacteria-bring-ancient-dna-back-to-life\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/uniavisen.dk\\\/wp-content\\\/uploads\\\/2013\\\/12\\\/dsc_1806_dxo_small.jpg\",\"datePublished\":\"-0001-11-30T00:00:00+00:00\",\"dateModified\":\"2017-01-20T23:35:48+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/#\\\/schema\\\/person\\\/b4df0b22f9be3943039e58e94c400606\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/en\\\/bacteria-bring-ancient-dna-back-to-life\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/uniavisen.dk\\\/en\\\/bacteria-bring-ancient-dna-back-to-life\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/uniavisen.dk\\\/en\\\/bacteria-bring-ancient-dna-back-to-life\\\/#primaryimage\",\"url\":\"https:\\\/\\\/uniavisen.dk\\\/wp-content\\\/uploads\\\/2013\\\/12\\\/dsc_1806_dxo_small.jpg\",\"contentUrl\":\"https:\\\/\\\/uniavisen.dk\\\/wp-content\\\/uploads\\\/2013\\\/12\\\/dsc_1806_dxo_small.jpg\",\"width\":930,\"height\":602,\"caption\":\"S\u00f8ren Overballe-Petersen at the Centre for Geogenetics at the Natural History Museum, armed with a mammoth bone. 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This challenges the current understanding of what bacteria are, and has implications for the development of antibiotics","use_post_excerpt":false},{"acf_fc_layout":"Byline","is_author":false,"contributors":[{"use_registered_user":false,"user":false,"contributor_name":"Anders Fjeldberg","contributor_title":" ","contributor_image":false}]},{"acf_fc_layout":"Content","content":"<p>University of Copenhagen post doc S\u00f8ren Overballe-Petersen, has taken the world of geogenetics by storm.<\/p>\n<p>With his PhD he has discovered that even ultra-short DNA fragments from a 43,000 year old mammoth bone can be incorporated by living bacteria. Until now, it was thought that the short fragments were biologically inactive and therefore essentially irrelevant.<\/p>\n<p>The breakthrough has meant S\u00f8ren Overballe-Petersen’s findings have been published in an article in the renowned scientific publication <a href=\"http:\/\/www.pnas.org\/content\/110\/49\/19860.abstract.html?etoc\" target=\"blank\"><em>Proceedings of the International Academy of Sciences USA (PNAS)<\/em>.<\/a> <\/p>\n<h2>Bringing DNA back to life<\/h2>\n<p>S\u00f8ren Overballe-Petersen completed his Master’s in Biochemistry in 2008 and subsequently started his PhD at the Centre for GeoGenetics, both at the University of Copenhagen.<\/p>\n<p>Here, he discovered that living bacteria can consume very short fragments of DNA from dead bacteria, plants and animals. But instead of digesting the fragments, living bacteria incorporated the DNA into their replication process.<\/p>\n<p>In this way, ancient DNA becomes a part of the DNA of living cells.<\/p>\n<h2>Understanding bacteria<\/h2>\n<p>This has implications for the future development of antiobiotics. When short DNA fragments from dead and resistant bacteria can be incorporated in living bacteria, thus passing on resistant genes, it can make it harder and possibly impossible to treat infections with antibiotics. Among other things, this means that sanitation in hospitals will have to be of a higher standard than it is today.<\/p>\n<p>The motivation behind S\u00f8ren Overballe-Petersen’s PhD, entitled <em>Bacterial natural transformation by highly fragmented and damaged DNA<\/em>, was to better understand the way bacteria works:<\/p>\n<p>“We have to change our understanding of bacteria, because if we don’t understand them, we will never be able to control them to the extent we hope to,” he says.<\/p>\n<p>universitypost@adm.ku.dk<\/p>\n<p><em>Like us on <a href=\"https:\/\/www.facebook.com\/UniversityPost\" target=\"_blank\"> Facebook <\/a> for features, guides and tips on upcoming events. Follow us on <a href=\"https:\/\/twitter.com\/UniversityPost\" target=\"_blank\"> Twitter<\/a> for links to other Copenhagen academia news stories. <a href=\"http:\/\/universitypost.dk\/newsletter\" target=\"_blank\">Sign up for the University Post weekly newsletter here<\/a>.<\/em><\/p>\n"},{"acf_fc_layout":"ArticleEnd"},{"acf_fc_layout":"OtherStories","headline":"","hand_picked_posts":false,"references":false,"category":false,"theme":false,"number_of_posts":"4","style":"default"}]},"taxonomyData":{"category":[{"term_id":46,"name":"Science","slug":"science","term_group":0,"term_taxonomy_id":46,"taxonomy":"category","description":"","parent":0,"count":830,"filter":"raw"}],"post_tag":[],"post_format":[],"expression":[{"term_id":15,"name":"News Article","slug":"news_article","term_group":0,"term_taxonomy_id":15,"taxonomy":"expression","description":"","parent":0,"count":11485,"filter":"raw"}],"translation_priority":[]},"featured_media_url":"https:\/\/uniavisen.dk\/wp-content\/uploads\/2013\/12\/dsc_1806_dxo_small.jpg","_links":{"self":[{"href":"https:\/\/uniavisen.dk\/en\/wp-json\/wp\/v2\/posts\/10241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/uniavisen.dk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/uniavisen.dk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/uniavisen.dk\/en\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/uniavisen.dk\/en\/wp-json\/wp\/v2\/comments?post=10241"}],"version-history":[{"count":1,"href":"https:\/\/uniavisen.dk\/en\/wp-json\/wp\/v2\/posts\/10241\/revisions"}],"predecessor-version":[{"id":33872,"href":"https:\/\/uniavisen.dk\/en\/wp-json\/wp\/v2\/posts\/10241\/revisions\/33872"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/uniavisen.dk\/en\/wp-json\/wp\/v2\/media\/10243"}],"wp:attachment":[{"href":"https:\/\/uniavisen.dk\/en\/wp-json\/wp\/v2\/media?parent=10241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/uniavisen.dk\/en\/wp-json\/wp\/v2\/categories?post=10241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/uniavisen.dk\/en\/wp-json\/wp\/v2\/tags?post=10241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}