New Insights into Lichenization in Agaricomycetes Based on an Unusual New Basidiolichen Species of Omphalina s. str.
- Author: mycolabadmin
- 2022-09-29
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Summary
This research describes a new species of fungal lichen discovered in China that provides important insights into how fungi evolved to form symbiotic relationships with algae. The discovery is significant because it shows that closely related fungi can include both lichen-forming and non-lichen-forming species, helping us better understand fungal evolution.
Impacts on everyday life:
– Improves our understanding of how organisms form beneficial partnerships in nature
– Helps scientists better classify and identify fungal species
– Contributes to knowledge about biodiversity in urban environments
– Advances methods for detecting symbiotic relationships in fungi
– Could lead to better understanding of how organisms adapt to different environments
Background
Lichens are symbionts of fungi (mycobionts) and algae/cyanobacteria (photobionts), with only 0.9% of species belonging to Basidiomycota. The genus Omphalina is important for studying lichenization mechanisms as it originally included both non-lichenized and lichenized species. Recent molecular analyses have shown that classical Omphalina includes several omphalinoid genera in Agaricales and Hymenochaetales orders.
Objective
To describe and characterize a new basidiolichen species of Omphalina found in China, providing new insights into lichenization in Agaricomycetes. The study aimed to update understanding of Omphalina genus delimitation and explore the significance of lichenization during fungal evolution.
Results
A new basidiolichen species, Omphalina licheniformis, was discovered and described from Jiangxi Province, China. The species showed distinctive characteristics including smaller basidiospores, presence of cheilocystidia, and notably, green algae cells in the stipe and Botrydina-type vegetative thalli near the stipe base. Phylogenetic analyses confirmed its placement within Omphalina s. str., closely related to O. pyxidata and O. chionophila.
Conclusion
The discovery of O. licheniformis updates the understanding of Omphalina genus, showing it contains both non-lichen-forming and lichen-forming species. This provides new evidence for understanding lichenization evolution in Basidiomycota. The presence of algal cells in basidiomata structures is a novel finding that suggests the need for more attention to potential basidiolichen identification through algal cell examinations.
- Published in:Journal of Fungi,
- Study Type:Original Research,
- Source: 10.3390/jof8101033