{"id":16715,"date":"2021-07-07T13:37:35","date_gmt":"2021-07-07T20:37:35","guid":{"rendered":"https:\/\/www.darkenergybiosphere.org\/?post_type=publication&#038;p=16715"},"modified":"2021-08-13T14:48:19","modified_gmt":"2021-08-13T21:48:19","slug":"cryptic-metabolisms-in-anoxic-subseafloor-sediment","status":"publish","type":"publication","link":"https:\/\/www.darkenergybiosphere.org\/publication\/cryptic-metabolisms-in-anoxic-subseafloor-sediment\/","title":{"rendered":"Cryptic metabolisms in anoxic subseafloor sediment"},"content":{"rendered":"<div class=\"abstract-group\">\n<section id=\"section-1-en\" class=\"article-section article-section__abstract\" lang=\"en\" data-lang=\"en\">\n<div class=\"article-section__content en main\">\n<p>Microbial gene expression in anoxic subseafloor sediment was recently explored in the Baltic Sea and the Peru Margin. Our analysis of these data reveals diverse transcripts encoding proteins associated with neutralization of reactive oxygen species, including catalase, which may provide an\u00a0<i>in situ<\/i>\u00a0source of oxygen. We also detect transcripts associated with oxidation of iron and sulfur, and with reduction of arsenate, selenate and nitrate. Given limited input of electron acceptors from outside the system, these results suggest that the microbial communities use an unexpectedly diverse variety of electron acceptors. Products of water radiolysis and their interactions with sediment continuously provide diverse electron acceptors and hydrogen. Cryptic microbial utilization of these oxidized substrates and H<sub>2<\/sub> may be an important mechanism for multi-million-year survival under the extreme energy limitation in subseafloor sediment.<\/p>\n<\/div>\n<\/section>\n<\/div>\n","protected":false},"template":"","tags":[],"publication_type":[19],"_links":{"self":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/publication\/16715"}],"collection":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/publication"}],"about":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/types\/publication"}],"wp:attachment":[{"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/media?parent=16715"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/tags?post=16715"},{"taxonomy":"publication_type","embeddable":true,"href":"https:\/\/www.darkenergybiosphere.org\/wp-json\/wp\/v2\/publication_type?post=16715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}