Two new species in a new genus and a critical revision of Brachybasidiaceae (Exobasidiales, Basidiomycota) in honor of Franz Oberwinkler

  • The Brachybasidiaceae are a family of 22 known species of plant-parasitic microfungi belonging to Exobasidiales, Basidiomycota. Within this family, species of the largest genus Kordyana develop balls of basidia on top of stomatal openings. Basidial cells originate from fungal stroma filling substomatal chambers. Species of Kordyana typically infect species of Commelinaceae. During fieldwork in the neotropics, fungi morphologically similar to Kordyana spp. were found on Goeppertia spp. (syn. Calathea spp., Marantaceae), namely on G. panamensis in Panama and on G. propinqua in Bolivia. These specimens are proposed as representatives of a genus new to science, Marantokordyana, based on the distinct host family and molecular sequence data of ITS and LSU rDNA regions. The specimens on the two host species represent two species new to science, M. oberwinkleriana on G. panamensis and M. boliviana on G. propinqua. They differ by the size and shape of their basidia, molecular sequence data of ITS and LSU rDNA regions, and host plant species. In the past, the understanding of Brachybasidiaceae at order and family level was significantly improved by investigation realized by Franz Oberwinkler and his collaborators at the University of Tübingen, Germany. On species level, however, our knowledge is still very poor due to incomplete species descriptions of several existing names in literature, scarceness of specimens, as well as sequence data lacking for many taxa and for further barcode regions. Especially species of Kordyana and species of Dicellomyces are in need of revision.

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Author:Meike PiepenbringORCiDGND, Maike Hartmann, Tina A. HofmannORCiDGND, Matthias LutzORCiDGND
Parent Title (English):Mycological Progress
Place of publication:Berlin ; Heidelberg
Document Type:Article
Date of Publication (online):2020/03/11
Date of first Publication:2020/03/11
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2023/01/13
Tag:Bolivia; Calathea; Dicellomyces; Kordyana; Marantaceae; Panama
Page Number:15
First Page:351
Last Page:365
Open Access funding provided by Projekt DEAL. This study received financial support from the German Research Foundation (DFG) and from the German Academic Exchange Service (DAAD) for many years.
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie
Licence (German):License LogoCreative Commons - Namensnennung 4.0