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Bitte verwenden Sie diesen Link, wenn Sie dieses Dokument zitieren oder verlinken wollen: https://nbn-resolving.org/urn:nbn:de:gbv:9-opus-44975

The Lichens’ Microbiota, Still a Mystery?

  • Lichens represent self-supporting symbioses, which occur in a wide range of terrestrial habitats and which contribute significantly to mineral cycling and energy flow at a global scale. Lichens usually grow much slower than higher plants. Nevertheless, lichens can contribute substantially to biomass production. This review focuses on the lichen symbiosis in general and especially on the model species Lobaria pulmonaria L. Hoffm., which is a large foliose lichen that occurs worldwide on tree trunks in undisturbed forests with long ecological continuity. In comparison to many other lichens, L. pulmonaria is less tolerant to desiccation and highly sensitive to air pollution. The name-giving mycobiont (belonging to the Ascomycota), provides a protective layer covering a layer of the green-algal photobiont (Dictyochloropsis reticulata) and interspersed cyanobacterial cell clusters (Nostoc spec.). Recently performed metaproteome analyses confirm the partition of functions in lichen partnerships. The ample functional diversity of the mycobiont contrasts the predominant function of the photobiont in production (and secretion) of energy-rich carbohydrates, and the cyanobiont’s contribution by nitrogen fixation. In addition, high throughput and state-of-the-art metagenomics and community fingerprinting, metatranscriptomics, and MS-based metaproteomics identify the bacterial community present on L. pulmonaria as a surprisingly abundant and structurally integrated element of the lichen symbiosis. Comparative metaproteome analyses of lichens from different sampling sites suggest the presence of a relatively stable core microbiome and a sampling site-specific portion of the microbiome. Moreover, these studies indicate how the microbiota may contribute to the symbiotic system, to improve its health, growth and fitness.

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Metadaten
Author: Maria Grimm, Martin Grube, Ulf Schiefelbein, Daniela Zühlke, Jörg Bernhardt, Katharina Riedel
URN:urn:nbn:de:gbv:9-opus-44975
DOI:https://doi.org/10.3389/fmicb.2021.623839
ISSN:1664-302X
Parent Title (English):Frontiers in Microbiology
Publisher:Frontiers Media S.A.
Document Type:Article
Language:English
Date of first Publication:2021/03/30
Release Date:2021/06/21
Tag:lichen-associated bacteria; lichens; microbiome; omics; symbiosis
GND Keyword:-
Volume:12
Faculties:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Mikrobiologie - Abteilung für Genetik & Biochemie
Licence (German):License LogoCreative Commons - Namensnennung