Semilichen, an unjustly neglected symbiotic system between green biofilms and true lichens

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F25%3A43910776" target="_blank" >RIV/60076658:12310/25:43910776 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/25:10515713

Result on the web

<a href="https://www.nature.com/articles/s41598-025-30542-z" target="_blank" >https://www.nature.com/articles/s41598-025-30542-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-025-30542-z" target="_blank" >10.1038/s41598-025-30542-z</a>

Result language

angličtina

Original language name

Semilichen, an unjustly neglected symbiotic system between green biofilms and true lichens

Original language description

Symbiotic systems of photosynthetic microorganisms and fungi are widespread in terrestrial biomes and lichens are probably the most advanced and complex. Conversely, the least complex systems are &quot;green biofilms&quot; with a completely unexplored mycobiome. We describe here a new system intermediate between green biofilms and lichens-semilichens. Light and fluorescence microscopy, eDNA sequencing, molecular phylogeny, Chlorophyll a fluorescence and C-13 labelling/metabolomics were used to study algal and fungal identity, morphology and physiology of the symbiosis. Tight contact between algae and a single predominant fungus (mycobiont) is revealed in semilichens. The algae are from the symbiotic lineages of Trebouxiophyceae and Ulvophyceae, the fungi belong to Arthoniomycetes, Dothideomycetes, Eurotiomycetes, Lecanoromycetes and Lichinomycetes. Algae are alive and perform substantial photosynthetic activity. C-13 labelled photosynthates are partially converted into specific fungal polyols (arabitol, mannitol) demonstrating the C-flow from algae to fungi. The new symbiotic system was defined and compared with other terrestrial algal-fungal symbioses. It is characterized by minimalist environmental requirements and extremely low production of biomass. As a result, it also inhabits environments unfavourable for lichens. Our research supports the hypothesis that the long-term existence of algae and fungi in terrestrial conditions affected by frequent and repeated drying is likely dependent on their mutual coexistence.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

2045-2322

Volume of the periodical

16

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

nestránkováno

UT code for WoS article

001658421000004

EID of the result in the Scopus database

2-s2.0-105027212996