Fungal Diversity in Lichens: From Extremotolerance to Interactions with Algae

Lichen symbioses develop long-living thallus structures even in the harshest environments on Earth. These structures are also habitats for many other microscopic organisms, including other fungi, which vary in their specificity and interaction with the whole symbiotic system. This contribution revie...

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Main Authors: Lucia Muggia, Martin Grube
Format: Article
Language:English
Published: MDPI AG 2018-05-01
Series:Life
Subjects:
Online Access:http://www.mdpi.com/2075-1729/8/2/15
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author Lucia Muggia
Martin Grube
author_facet Lucia Muggia
Martin Grube
author_sort Lucia Muggia
collection DOAJ
description Lichen symbioses develop long-living thallus structures even in the harshest environments on Earth. These structures are also habitats for many other microscopic organisms, including other fungi, which vary in their specificity and interaction with the whole symbiotic system. This contribution reviews the recent progress regarding the understanding of the lichen-inhabiting fungi that are achieved by multiphasic approaches (culturing, microscopy, and sequencing). The lichen mycobiome comprises a more or less specific pool of species that can develop symptoms on their hosts, a generalist environmental pool, and a pool of transient species. Typically, the fungal classes Dothideomycetes, Eurotiomycetes, Leotiomycetes, Sordariomycetes, and Tremellomycetes predominate the associated fungal communities. While symptomatic lichenicolous fungi belong to lichen-forming lineages, many of the other fungi that are found have close relatives that are known from different ecological niches, including both plant and animal pathogens, and rock colonizers. A significant fraction of yet unnamed melanized (‘black’) fungi belong to the classes Chaethothyriomycetes and Dothideomycetes. These lineages tolerate the stressful conditions and harsh environments that affect their hosts, and therefore are interpreted as extremotolerant fungi. Some of these taxa can also form lichen-like associations with the algae of the lichen system when they are enforced to symbiosis by co-culturing assays.
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spelling doaj.art-975b0f4a4f3f411eb271f01e2cf893d22022-12-22T02:57:12ZengMDPI AGLife2075-17292018-05-01821510.3390/life8020015life8020015Fungal Diversity in Lichens: From Extremotolerance to Interactions with AlgaeLucia Muggia0Martin Grube1Department of Life Sciences, University of Trieste, via Licio Giorgieri 10, 34127 Trieste, ItalyInstitute of Biology, Karl-Franzens University of Graz, Holteigasse 6, 8010 Graz, AustriaLichen symbioses develop long-living thallus structures even in the harshest environments on Earth. These structures are also habitats for many other microscopic organisms, including other fungi, which vary in their specificity and interaction with the whole symbiotic system. This contribution reviews the recent progress regarding the understanding of the lichen-inhabiting fungi that are achieved by multiphasic approaches (culturing, microscopy, and sequencing). The lichen mycobiome comprises a more or less specific pool of species that can develop symptoms on their hosts, a generalist environmental pool, and a pool of transient species. Typically, the fungal classes Dothideomycetes, Eurotiomycetes, Leotiomycetes, Sordariomycetes, and Tremellomycetes predominate the associated fungal communities. While symptomatic lichenicolous fungi belong to lichen-forming lineages, many of the other fungi that are found have close relatives that are known from different ecological niches, including both plant and animal pathogens, and rock colonizers. A significant fraction of yet unnamed melanized (‘black’) fungi belong to the classes Chaethothyriomycetes and Dothideomycetes. These lineages tolerate the stressful conditions and harsh environments that affect their hosts, and therefore are interpreted as extremotolerant fungi. Some of these taxa can also form lichen-like associations with the algae of the lichen system when they are enforced to symbiosis by co-culturing assays.http://www.mdpi.com/2075-1729/8/2/15culturesmetabarcodingmycobiomephotobiontsphylogeneticssymbiosissystematics
spellingShingle Lucia Muggia
Martin Grube
Fungal Diversity in Lichens: From Extremotolerance to Interactions with Algae
Life
cultures
metabarcoding
mycobiome
photobionts
phylogenetics
symbiosis
systematics
title Fungal Diversity in Lichens: From Extremotolerance to Interactions with Algae
title_full Fungal Diversity in Lichens: From Extremotolerance to Interactions with Algae
title_fullStr Fungal Diversity in Lichens: From Extremotolerance to Interactions with Algae
title_full_unstemmed Fungal Diversity in Lichens: From Extremotolerance to Interactions with Algae
title_short Fungal Diversity in Lichens: From Extremotolerance to Interactions with Algae
title_sort fungal diversity in lichens from extremotolerance to interactions with algae
topic cultures
metabarcoding
mycobiome
photobionts
phylogenetics
symbiosis
systematics
url http://www.mdpi.com/2075-1729/8/2/15
work_keys_str_mv AT luciamuggia fungaldiversityinlichensfromextremotolerancetointeractionswithalgae
AT martingrube fungaldiversityinlichensfromextremotolerancetointeractionswithalgae