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Fungal Weathering

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Encyclopedia of Astrobiology

Synonyms

Biotic mineral alteration; Biotic mineral dissolution and complexation

Definition

Fungi are essential drivers of biogeochemical cycles at the Earth surface. They are involved in both rock weathering and neogenesis of minerals, the latter as by-products of their impact during alteration. During biomechanical weathering, fungi can penetrate into minerals forming tunnels and channels. During biochemical weathering, fungi mobilize elements contained in minerals using acidolysis, complexolysis, redoxolysis, and metal accumulation in their biomass. Secondary minerals, such as metal-oxalates, -carbonates, -phosphates, and clays, are also generated by fungi as a result of mineral weathering. Moreover, symbiotic associations involving fungi (mycorrhizae and lichens) play a major role in mineral weathering and soil biogeochemical cycles.

Overview

Fungi are eukaryotic organisms that first appear in the fossil record 1 billion years ago (Loron et al. 2019) in agreement with molecular...

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Correspondence to Eric P. Verrecchia .

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© 2022 Springer-Verlag GmbH Germany, part of Springer Nature

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Bindschedler, S., Verrecchia, E.P. (2022). Fungal Weathering. In: Gargaud, M., et al. Encyclopedia of Astrobiology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27833-4_5400-2

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  • DOI: https://doi.org/10.1007/978-3-642-27833-4_5400-2

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-27833-4

  • Online ISBN: 978-3-642-27833-4

  • eBook Packages: Springer Reference Physics and AstronomyReference Module Physical and Materials ScienceReference Module Chemistry, Materials and Physics

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Chapter history

  1. Latest

    Fungal Weathering
    Published:
    18 December 2021

    DOI: https://doi.org/10.1007/978-3-642-27833-4_5400-2

  2. Original

    Fungal Weathering
    Published:
    03 August 2019

    DOI: https://doi.org/10.1007/978-3-642-27833-4_5400-1