Eurodistus Madhushan, P. C. Ding & Maharachch. 2025, gen. nov.
Authors/Creators
- 1. School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
Description
Eurodistus Madhushan, P.C. Ding & Maharachch. gen. nov.
MycoBank: MB 859651
Etymology: “ Eurodistus ” refers to a distoseptate (- distus) fungus classified within the class Eurotiomycetes (Euro -).
Saprobic on dead branch of an unidentified terrestrial dicotyledonous plant. Asexual morph: hyphomycetous. Colonies on the substratum superficial, effuse, scattered, hairy, dark brown, grey or black. Mycelium partly immersed, composed of branched, septate, smooth, pale brown hyphae. Conidiophores macronematous, mononematous, septate, unbranched, single or caespitose, erect, straight or bent, smooth, dark brown, tapering distally, and robust at the base. Conidiogenous cells monoblastic, integrated, determinate, terminal, dark brown, cylindrical. Conidia acrogenous, solitary, dry, obclavate, elongated, straight or slightly curved, truncate at the base, distoseptate, smooth, dark brown to black, paler towards the apex, and thick-walled. Sexual morph: undetermined.
Type species: Eurodistus sichuanense Madhushan, P.C. Ding & Maharachch.
Notes: Our collections exhibit distinct morphological characteristics, having acrogenous, obclavate, elongated, and distoseptate conidia, which are not found in any known members of the family Herpotrichiellaceae. Generally, herpotrichiellaceous hyphomycetes comprises black yeasts producing holoblastic, aseptate or septate conidia from small pegs on conidiophores, often in chains with annellidic features and occasional fusion or bending (Müller et al. 1987; Untereiner et al. 1995; Tian et al. 2021), or other forms with short or inconspicuous conidiophores bearing oval, muriform conidia (Tian et al. 2016; Dong et al. 2018).However, the morphological characters of our collections resemble species of Distoseptispora, Sporidesmium (Su et al. 2016), and Linkosia (Wu & Diao 2022) in Sordariomycetes, and Corynespora (Ma et al. 2008) and Sporidesmiella (Ma et al. 2012) in Dothideomycetes, all of which share acrogenous, obclavate, elongated, distoseptate conidia.
Notes
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.11646/phytotaxa.728.3.2 (DOI)
- Journal article: http://zenodo.org/record/18418444 (URL)
- Journal article: http://publication.plazi.org/id/8E0E0A68103CFFF7DE31FF888C304273 (URL)
- Is source of
- https://biodiversitypmc.sibils.org/collections/plazi/723772101039FFF2DEB9FF6D8E5241A3 (URL)
Biodiversity
- Scientific name authorship
- Madhushan, P. C. Ding & Maharachch.
- Kingdom
- Fungi
- Phylum
- Ascomycota
- Order
- Chaetothyriales
- Family
- Herpotrichiellaceae
- Genus
- Eurodistus
- Taxon rank
- genus
- Taxonomic status
- gen. nov.
- Taxonomic concept label
- Eurodistus Madhushan & Ding, 2025
References
- Muller, E., Petrini, O., Fisher, P. J., Samuels, G. J. & Rossman, A. Y. (1987) Taxonomy and anamorphs of the Herpotrichiellaceae with notes on generic synonymy. Transactions of the British Mycological Society 88: 63-74. https://doi.org/10.1016/S0007-1536(87)80186-9
- Untereiner, W. A., Straus, N. A. & Malloch, D. (1995) A molecular morphotaxonomic approach to the systematics of the Herpotrichiellaceae and allied black yeasts. Mycological Research 99 (8): 897-913. https://doi.org/10.1016/S0953-7562(09)80748-X
- Tian, Q., Chomnunti, P., Lumyong, S., Liu, J. K. & Hyde, K. D. (2021) Phylogenetic relationships and morphological reappraisal of Chaetothyriales. Mycosphere 12 (1): 1157-1261. https://doi.org/10.5943/mycosphere/12/1/15
- Tian, Q., Doilom, M., Luo, Z. L., Chomnunti, P., Bhat, J. D., Xu, J. C. & Hyde, K. D. (2016) Introducing Melanoctona tectonae gen. et sp. nov. and Minimelanolocus yunnanensis sp. nov. (Herpotrichiellaceae, Chaetothyriales). Cryptogamie, Mycologie 37 (4): 477-492. https://doi.org/10.7872/crym/v37.iss4.2016.477
- Dong, W., Hyde, K. D., Jayarama Bhat, D. & Zhang, H. (2018) Introducing Aculeata aquatica gen. et sp. nov., Minimelanolocus thailandensis sp. nov. and Thysanorea aquatica sp. nov. (Herpotrichiellaceae, Chaetothyriales) from freshwater in northern Thailand. Mycological Progress 17: 617-629. https://doi.org/10.1007/s11557-018-1389-2
- Su, H., Hyde, K. D., Maharachchikumbura, S. S., Ariyawansa, H. A., Luo, Z., Promputtha, I., Tian, Q., Lin, C., Shang, Q., Zhao, Y. & Chai, H. (2016) The families Distoseptisporaceae fam. nov., Kirschsteiniotheliaceae, Sporormiaceae and Torulaceae, with new species from freshwater in Yunnan Province, China. Fungal Diversity 80: 375-409. https://doi.org/10.1007/s13225-016-0362-0
- Wu, W. & Diao, Y. (2022) Anamorphic chaetosphaeriaceous fungi from China. Fungal Diversity 116 (1): 1-546. https://doi.org/10.1007/s13225-022-00509-w
- Ma, J., Zhang, K. & Zhang, X. G. (2008) Taxonomic studies of Corynespora from Hainan, China. Mycotaxon 104: 153-157. https://doi.org/10.5248/109.85
- Ma, J., Zhang, Y. D., Ma, L. G., Castaneda-Ruiz, R. F. & Zhang, X. G. (2012) Three new species of Sporidesmiella from southern China. Mycoscience 53 (3): 187-193. https://doi.org/10.1007/S10267-011-0152-1