The Pacific Tree-Parasitic Fungus Cyclocybe parasitica Exhibits Monokaryotic Fruiting, Showing Phenotypes Known from Bracket Fungi and from Cyclocybe aegerita
- Cyclocybe parasitica is a wood-destroying parasitic edible mushroom growing on diverse broad-leafed trees in New Zealand and other Pacific areas. Recent molecular systematics of European \(\textit {Cyclocybe aegerita}\), a newly delimited Asian phylum and of related species, corroborated the distinction of the chiefly saprobic cultivated edible mushroom \(\textit {C. aegerita}\) from \(\textit {C. parasitica}\). Here, we show that \(\textit {C. parasitica}\) exhibits a morpho-physiological trait characteristic to its European cousin, i.e., monokaryotic fruiting \(\textit {sensu stricto}\) (basidiome formation without mating). Monokaryotic fruiting structures formed by \(\textit {C. parasitica}\) ICMP 11668-derived monokaryons were categorized into four phenotypes. One of them displays ulcer-like structures previously reported from bracket fungi. Histology of dikaryotic and monokaryotic \(\textit {C. parasitica}\) fruiting structures revealed anatomical commonalities and differences between them, and towards monokaryotic fruiting structures of \(\textit {C. aegerita}\). Mating experiments with \(\textit {C. parasitica}\) strains representative of each fruiting phenotype identified compatible sibling monokaryons. Given reports on hypothetically monokaryotic basidiome field populations of \(\textit {"C. aegerita sensu lato"}\), it seems worthwhile to prospectively investigate whether monokaryotic fruiting s.str. occurs in nature. Sampling from such populations including karyotyping, comparative -omics, and competition assays may help to answer this question and provide evidence whether this trait may confer competitive advantages to a species capable of it.
Author: | Hannah EldersGND, Florian HennickeGND |
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URN: | urn:nbn:de:hbz:294-87574 |
DOI: | https://doi.org/10.3390/jof7050394 |
Parent Title (English): | Journal of fungi |
Publisher: | MDPI |
Place of publication: | Basel |
Document Type: | Article |
Language: | English |
Date of Publication (online): | 2022/03/23 |
Date of first Publication: | 2021/05/19 |
Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
Tag: | Open Access Fonds Basidiomycota; basidiocarp; fructification; life cycle; morphogenesis; multicellular development; plant-pathogenic fungi; reproduction mode |
Volume: | 7 |
Issue: | 5, Artikel 394 |
First Page: | 394-1 |
Last Page: | 394-15 |
Note: | Article Processing Charge funded by the Open Access Publication Fund of Ruhr-Universität Bochum. |
Institutes/Facilities: | Lehrstuhl Evolution der Pflanzen und Pilze |
Dewey Decimal Classification: | Naturwissenschaften und Mathematik / Biowissenschaften, Biologie, Biochemie |
open_access (DINI-Set): | open_access |
faculties: | Fakultät für Biologie und Biotechnologie |
Licence (English): | Creative Commons - CC BY 4.0 - Attribution 4.0 International |