{"651175":{"#nid":"651175","#data":{"type":"external_news","title":"Purple Bacteria Fix Nitrogen in Proterozoic-Analogue Lake","body":[{"value":"\u003Cp\u003EAll life needs nitrogen, but most organisms can use only nitrogen that has been \u0026ldquo;fixed,\u0026rdquo; or transformed into a biologically useful form by microbes. A\u0026nbsp;dearth of fixed nitrogen has even been invoked as an explanation for Earth\u0026rsquo;s \u0026ldquo;\u003Ca href=\u0022https:\/\/en.wikipedia.org\/wiki\/Boring_Billion\u0022 rel=\u0022noopener\u0022 target=\u0022_blank\u0022\u003EBoring Billion\u003C\/a\u003E,\u0026rdquo; a 1-billion-year period in the\u0026nbsp;\u003Ca href=\u0022https:\/\/www.britannica.com\/science\/Proterozoic-Eon\u0022 rel=\u0022noopener\u0022 target=\u0022_blank\u0022\u003EProterozoic\u003C\/a\u003E\u0026nbsp;when the expansion and evolution of life seem to have ground to a halt. A new study shows p\u003Ca href=\u0022https:\/\/en.wikipedia.org\/wiki\/Purple_sulfur_bacteria\u0022 rel=\u0022noopener\u0022 target=\u0022_blank\u0022\u003Eurple sulfur bacteria\u003C\/a\u003E\u0026nbsp;in Proterozoic-analogue\u0026nbsp;\u003Ca href=\u0022https:\/\/en.wikipedia.org\/wiki\/Lake_Cadagno\u0022 rel=\u0022noopener\u0022 target=\u0022_blank\u0022\u003ELake Cadagno\u003C\/a\u003E, Switzerland, can fix nitrogen at rates comparable to the low end achieved by cyanobacteria. \u003Ca href=\u0022https:\/\/eas.gatech.edu\/people\/glass-dr-jennifer\u0022\u003EJennifer Glass,\u003C\/a\u003E associate professor in the School of Earth and Atmospheric Sciences who\u0026nbsp;was not involved in the study,\u0026nbsp;comments on the research.\u0026nbsp;\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":"","uid":"34434","created_gmt":"2021-09-28 17:16:40","changed_gmt":"2021-09-28 17:16:40","author":"Renay San Miguel","boilerplate_text":"","field_publication":"","publication":"Olivia Kiklica","field_article_url":"","publication_url":"https:\/\/eos.org\/articles\/purple-bacteria-fix-nitrogen-in-proterozoic-analogue-lake","dateline":{"date":"2021-09-28T00:00:00-04:00","iso_date":"2021-09-28T00:00:00-04:00","tz":"America\/New_York"},"extras":[],"groups":[{"id":"1278","name":"College of Sciences"},{"id":"364801","name":"EAS"}],"categories":[{"id":"146","name":"Life Sciences and Biology"}],"keywords":[{"id":"4896","name":"College of Sciences"},{"id":"166926","name":"School of Earth and Atmospheric Sciences"},{"id":"170556","name":"nitrogen"},{"id":"188952","name":"fixed nitrogen"},{"id":"188953","name":"purple sulfur bacteria"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}