Novel Freshwater Ascomycetes from Submerged Plant Debris in the Zújar River (Extremadura Community, Spain)
María Barnés-Guirado, Alberto Miguel Stchigel, José Francisco Cano-Lira

TL;DR
This study discovers and describes new freshwater fungi from decaying plant debris in a Spanish river, enhancing understanding of fungal diversity in Mediterranean ecosystems.
Contribution
Five new freshwater fungal species are described, along with taxonomic revisions in two fungal orders.
Findings
Five new freshwater ascomycete species were identified and described from the Zújar River.
Polyscytalum submersum is the first record of its genus in the Iberian Peninsula.
Taxonomic refinements were proposed for the orders Magnaporthales and Conioscyphales.
Abstract
Freshwater fungi remain insufficiently documented in the Mediterranean river systems despite their key roles in organic-matter turnover. Here, we surveyed filamentous fungi associated with submerged decaying plant debris in the Zújar River (Extremadura, southwestern Spain) using a culture-based approach combined with phenotypic characterization and multilocus phylogenetic analyses (ITS, LSU, rpb1, rpb2 and tef-1α). A total of 49 strains were isolated and identified, revealing a diverse assemblage of Ascomycota. Five taxa are described as new to science: Arachnopeziza torrehermosensis, Conioscypha clavatispora, Neoanungitea torrehermosensis, Ophioceras diversisporum and Polyscytalum submersum. Notably, Polyscytalum submersum represents the first record of the genus for the Iberian Peninsula, while Arachnopeziza torrehermosensis, Neoanungitea torrehermosensis and Ophioceras diversisporum…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsFreshwater macroinvertebrate diversity and ecology · Plant Pathogens and Fungal Diseases · Protist diversity and phylogeny
