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Fungi in deep subsurface environments
Swedish Museum of Natural History, Department of Paleobiology. University of Southern Denmark, Department of Biology and Nordic Center for Earth Evolution, Campusvej 55, Odense M, DK-5230, Denmark.
Swedish Museum of Natural History, Department of Paleobiology.ORCID iD: 0000-0003-0206-5791
Linnaeus University, Kalmar.
University of Southern Denmark.ORCID iD: 0000-0003-3473-4726
2018 (English)In: Advances in Applied Microbiology, ISSN 0065-2164, Vol. 102, p. 83-116Article in journal (Refereed) Published
Abstract [en]

The igneous crust of the oceans and the continents represents the major part of Earth's lithosphere and has recently been recognized as a substantial, yet underexplored, microbial habitat. While prokaryotes have been the focus of most investigations, microeukaryotes have been surprisingly neglected. However, recent work acknowledges eukaryotes, and in particular fungi, as common inhabitants of the deep biosphere, including the deep igneous provinces. The fossil record of the subseafloor igneous crust, and to some extent the continental bedrock, establishes fungi or fungus-like organisms as inhabitants of deep rock since at least the Paleoproterozoic, which challenges the present notion of early fungal evolution. Additionally, deep fungi have been shown to play an important ecological role engaging in symbiosis-like relationships with prokaryotes, decomposing organic matter, and being responsible for mineral weathering and formation, thus mediating mobilization of biogeochemically important elements. In this review, we aim at covering the abundance and diversity of fungi in the various igneous rock provinces on Earth as well as describing the ecological impact of deep fungi. We further discuss what consequences recent findings might have for the understanding of the fungal distribution in extensive anoxic environments and for early fungal evolution.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2018. Vol. 102, p. 83-116
Keywords [en]
Fungi, Deep biosphere, Igneous crust
National Category
Natural Sciences Other Earth and Related Environmental Sciences
Research subject
The changing Earth
Identifiers
URN: urn:nbn:se:nrm:diva-2879DOI: 10.1016/bs.aambs.2017.11.001OAI: oai:DiVA.org:nrm-2879DiVA, id: diva2:1256203
Funder
Swedish Research Council, 2017-04129Available from: 2018-10-16 Created: 2018-10-16 Last updated: 2018-10-23Bibliographically approved

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Publisher's full texthttps://www.sciencedirect.com/science/article/pii/S0065216417300576?via%3Dihub

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