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Diversity of Lignicolous Freshwater Fungi from Yuanjiang River in Yunnan (China), with the Description of Four New Species

Summary

Scientists studied freshwater fungi living on decaying wood in the Yuanjiang River in southwestern China. They collected samples and used both microscopy and genetic analysis to identify nine fungal species, four of which were previously unknown to science. This research helps us understand the diversity of fungi in freshwater ecosystems and their role in breaking down wood materials in nature.

Background

Lignicolous freshwater fungi grow on submerged woody debris in freshwater habitats and play an important role in decomposing lignocellulose substrates. The Yuanjiang River in Yunnan Province is one of the six major water systems in China with abundant freshwater environments, yet research on its lignicolous freshwater fungi remains limited.

Objective

To investigate the diversity of lignicolous freshwater fungi in the Yuanjiang River and identify new species through morphological and multigene phylogenetic analyses.

Results

Nine fungal species were collected and identified, with five belonging to Dothideomycetes and four to Sordariomycetes. Four new species were described: Aquadictyospora aquatica, Dictyosporium fluminicola, Myrmecridium submersum, and Neomyrmecridium fusiforme. Additionally, one new national record and one new habitat record were reported.

Conclusion

This study significantly contributes to understanding the diversity of lignicolous freshwater fungi in southwestern China and provides recommendations for conservation and utilization of these fungal resources. The findings offer important reference information for understanding species diversity and distribution patterns in the Yuanjiang River.
  • Published in:Journal of Fungi (Basel),
  • Study Type:Descriptive Study,
  • Source: PMID: 39728377, DOI: 10.3390/jof10120881
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