{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T23:23:42Z","timestamp":1787009022491,"version":"build-2736575974"},"reference-count":53,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T00:00:00Z","timestamp":1774569600000},"content-version":"vor","delay-in-days":85,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Microsfera","award":["407\u2009816\/2013-5"],"award-info":[{"award-number":["407\u2009816\/2013-5"]}]},{"name":"AeroMicroAntar","award":["440893\/2023-2"],"award-info":[{"award-number":["440893\/2023-2"]}]},{"name":"INCT-Criosfera","award":["028306\/2009"],"award-info":[{"award-number":["028306\/2009"]}]},{"name":"Brazilian National Council of Technological and Scientific Development"},{"name":"Brazilian Antarctic Program"},{"DOI":"10.13039\/501100001807","name":"S\u00e3o Paulo Research Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001807","id-type":"DOI","asserted-by":"publisher"}]},{"name":"AGB Doctorate\u2019s fellowship","award":["2012\/23241-0"],"award-info":[{"award-number":["2012\/23241-0"]}]},{"name":"Instituto Serrapilheira and FAPESP","award":["2024\/15222-3"],"award-info":[{"award-number":["2024\/15222-3"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,1,14]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Deception Island fumaroles in Antarctica represent rare environments where extreme heat intersects with cryospheric and marine conditions, creating remarkable environmental gradients. From the near-boiling sediments, we reconstructed a high-quality metagenome-assembled genome affiliated with the Pyrodictiaceae. Phylogenomic analyses revealed that this genome, proposed to represent Ca. Pyroantarcticum pellizari, forms a distinct lineage separated from known genera in the family. Functional annotation uncovered a versatile metabolic repertoire, including pathways for sulfur and nitrogen cycling, peptide and amino acid transport, and mixotrophic energy conservation. Stress-response systems such as reverse gyrase, thermosome, and small heat-shock proteins were complemented by lineage-specific genes related to membrane stability, metal detoxification, and Pyrodictiaceae-specific cannulae. These adaptations likely support survival under sharp temperature gradients, hydrogen sulfide emissions, and high metal concentrations at the volcanic\u2013cryosphere\u2013marine interface. Our findings expand the phylogenetic and ecological scope of Pyrodictiaceae, highlighting Antarctic marine volcanoes as unique refuges for hyperthermophiles and as valuable models for investigating life\u2019s habitability under extreme temperatures.<\/jats:p>","DOI":"10.1093\/ismeco\/ycag080","type":"journal-article","created":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T12:49:49Z","timestamp":1774529389000},"source":"Crossref","is-referenced-by-count":1,"title":["Hot life in Antarctica: a novel metabolically versatile\n                    <i>Pyrodictiaceae<\/i>\n                    genus thriving at a volcanic\u2013cryosphere\u2013marine interface"],"prefix":"10.1093","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4275-492X","authenticated-orcid":false,"given":"Ana Carolina","family":"de Ara\u00fajo Butarelli","sequence":"first","affiliation":[{"name":"Department of Biological Oceanography, Oceanographic Institute, University of S\u00e3o Paulo . Pra\u00e7a do Oceanogr\u00e1fico, 191, S\u00e3o Paulo, SP 05508-900 ,","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5905-9168","authenticated-orcid":false,"given":"Francielli Vilela","family":"Peres","sequence":"additional","affiliation":[{"name":"Department of Biological Oceanography, Oceanographic Institute, University of S\u00e3o Paulo . Pra\u00e7a do Oceanogr\u00e1fico, 191, S\u00e3o Paulo, SP 05508-900 ,","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2757-6352","authenticated-orcid":false,"given":"Vivian Helena","family":"Pellizari","sequence":"additional","affiliation":[{"name":"Department of Biological Oceanography, Oceanographic Institute, University of S\u00e3o Paulo . 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