{"id":17809,"date":"2025-10-26T16:15:06","date_gmt":"2025-10-26T15:15:06","guid":{"rendered":"https:\/\/alpalga.fr\/?p=17809"},"modified":"2025-10-26T16:28:02","modified_gmt":"2025-10-26T15:28:02","slug":"2025-july-a-microscopic-fungus-associated-with-snow-algae","status":"publish","type":"post","link":"https:\/\/alpalga.fr\/en\/2025-july-a-microscopic-fungus-associated-with-snow-algae\/","title":{"rendered":"| 2025, July | A MICROSCOPIC FUNGUS ASSOCIATED WITH SNOW ALGAE!"},"content":{"rendered":"<p data-start=\"0\" data-end=\"381\">The snows and ice of polar regions and mountain summits are not inert deserts!<br data-start=\"78\" data-end=\"81\" \/>They harbor a still little-known microscopic biodiversity \u2014 including microalgae that, like tiny forests, capture atmospheric CO\u2082 and transform it into spectacularly pigmented biomass, responsible for the famous \u201cred snows.\u201d<br data-start=\"305\" data-end=\"308\" \/>But what becomes of this biomass trapped in the ice once the algae die?<\/p>\n<p data-start=\"383\" data-end=\"674\">A study from the <strong data-start=\"400\" data-end=\"422\">AlpAlga consortium<\/strong>, conducted with the support of the <strong data-start=\"458\" data-end=\"499\">French National Research Agency (ANR)<\/strong>, <strong data-start=\"501\" data-end=\"516\">Greenlandia<\/strong>, and the <strong data-start=\"526\" data-end=\"554\">Kilian Jornet Foundation<\/strong>, and published in <em data-start=\"573\" data-end=\"597\">Communications Biology<\/em>, reveals the key role of a microscopic fungus thriving across icy regions.<\/p>\n<p data-start=\"676\" data-end=\"1018\">Called <strong data-start=\"683\" data-end=\"699\">Phenoliferia<\/strong>, this fungus is a true craftsman of organic matter recycling.<br data-start=\"761\" data-end=\"764\" \/>It decomposes algal pigments and molecules thanks to a genome among the richest known in genes coding for degradation enzymes. Moreover, it holds the <strong data-start=\"914\" data-end=\"969\">world record for the number of ice-binding proteins<\/strong>, a unique asset for surviving in extreme cold.<\/p>\n<p data-start=\"1020\" data-end=\"1232\">By transforming the organic matter fixed by the algae, this invisible fungus establishes an essential link between snow, ice, and neighboring soils \u2014 embedding the cryosphere within the <strong data-start=\"1206\" data-end=\"1229\">global carbon cycle<\/strong>.<\/p>\n<p data-start=\"1234\" data-end=\"1556\" data-is-last-node=\"\" data-is-only-node=\"\">Behind the beauty of the \u201cred snows\u201d lies a powerful duo: <strong data-start=\"1292\" data-end=\"1318\">algae that capture CO\u2082<\/strong> and <strong data-start=\"1323\" data-end=\"1371\">microscopic fungi that recycle their biomass<\/strong>.<br data-start=\"1372\" data-end=\"1375\" \/>This discovery highlights the unexpected strength of snow and glacier biodiversity, whose hidden mechanisms contribute to the resilience of ecosystems in the face of climate change.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-17807\" src=\"https:\/\/alpalga.fr\/wp-content\/uploads\/2025\/10\/Graphical-Absract-REV-300x243.jpg\" alt=\"\" width=\"300\" height=\"243\" srcset=\"https:\/\/alpalga.fr\/wp-content\/uploads\/2025\/10\/Graphical-Absract-REV-300x243.jpg 300w, https:\/\/alpalga.fr\/wp-content\/uploads\/2025\/10\/Graphical-Absract-REV.jpg 605w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>In this image, we can see the cells of the fungus, whose surface is covered with the red pigment produced by snow algae \u2014 <strong data-start=\"122\" data-end=\"137\">astaxanthin<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p>Reference : Ezzedine, J.A., Guenzi-Tiberi, P., Villain, G. Aiese Cigliano R., Diagne Y, Franceschi E, Drula E, For\u00eat J, Valay JG, Proch\u00e1zkov\u00e1 L, Remias D, Terrapon N, Amato A, Mar\u00e9chal E (2025) <a href=\"https:\/\/www.nature.com\/articles\/s42003-025-08506-w\">Snow- and ice-ecosystem cleaning capability of the pucciniomycotinous yeast Phenoliferia psychrophenolica.<\/a> <strong><em>Communications Biology<\/em><\/strong> 8, 1084. <a href=\"https:\/\/doi.org\/10.1038\/s42003-025-08506-w\">https:\/\/doi.org\/10.1038\/s42003-025-08506-w<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The snows and ice of polar regions and mountain summits are not inert deserts!They harbor a still little-known microscopic biodiversity \u2014 including microalgae that, like tiny forests, capture atmospheric CO\u2082 and transform it into spectacularly pigmented biomass, responsible for the famous \u201cred snows.\u201dBut what becomes&#8230;<\/p>\n","protected":false},"author":2,"featured_media":17806,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72],"tags":[],"class_list":["post-17809","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-latest-news"],"_links":{"self":[{"href":"https:\/\/alpalga.fr\/en\/wp-json\/wp\/v2\/posts\/17809","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alpalga.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alpalga.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alpalga.fr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/alpalga.fr\/en\/wp-json\/wp\/v2\/comments?post=17809"}],"version-history":[{"count":1,"href":"https:\/\/alpalga.fr\/en\/wp-json\/wp\/v2\/posts\/17809\/revisions"}],"predecessor-version":[{"id":17812,"href":"https:\/\/alpalga.fr\/en\/wp-json\/wp\/v2\/posts\/17809\/revisions\/17812"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alpalga.fr\/en\/wp-json\/wp\/v2\/media\/17806"}],"wp:attachment":[{"href":"https:\/\/alpalga.fr\/en\/wp-json\/wp\/v2\/media?parent=17809"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alpalga.fr\/en\/wp-json\/wp\/v2\/categories?post=17809"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alpalga.fr\/en\/wp-json\/wp\/v2\/tags?post=17809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}