Fungalpedia – Note 457, Bradymyces 

 

Bradymyces Hubka, Réblová, Selbmann & M. Kolařík 

Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Rock-inhabiting fungi.

Index FungorumFacesoffungiMycoBankGenBank, Fig. 1 

Classification: Incertae sedis, Chaetothyriales, Chaetothyriomycetidae, Eurotiomycetes, Pezizomycotina, Ascomycota, Fungi.

Bradymyces was introduced by Hubka et al. (2014) with B. alpinus and B. oncorhynchi as the type species based on the morphological and molecular characteristics (ITS and β-tubulin). Most Bradymyces have been associated with bare granite walls and rocks, whereas  only B. alpinus is an opportunistic fish pathogen (Hubka et al. 2014Reblova et al. 2016Sun et al. 2020). In morphology shows septate mycelium with branched, melanized hyphae of two types (cylindrical and moniliform); blastic proliferation is present at the ends of moniliform hyphae, often swollen at the terminal cell with umbonate apex and conspicuously larger than the subterminal cell; dark brown uni- or multi-cellular bodies, develop in intercalar and terminal position on the hyphae with septa; globose or subglobose endoconidia, unicellular (Hubka et al. 2014). To date, this genus has consisted of five species that are mostly isolated from rocks. 

Type species: Bradymyces oncorhynchi Hubka, Řehulka, Réblová & M. Kolařík

Other accepted species: Species Fungorum – search Bradymyces

Figure 1 – Bradymyces oncorhynchi (CCF 4369, holotype). a-d Moniliform hyphae. e, f Endoconidia. Scale bars: a-f = 5 μm. Redrawn from Hubka et al. (2014).

 

References

Hubka V, Réblová M, Řehulka J, Selbmann L, et al. 2014 – Bradymyces gen. nov. (Chaetothyriales, Trichomeriaceae), a new ascomycete genus accommodating poorly differentiated melanized fungi. Antonie van Leeuwenhoek 106(5), 979–992.

Reblova M, Hubka V, Thureborn O, Lundberg J, et al. 2016 – From the tunnels into the treetops: new lineages of black yeasts from biofilm in the Stockholm metro system and their relatives among ant-associated fungi in the Chaetothyriales. PLoS One 11(10), e0163396.

Sun W, Su L, Yang S, Sun J, et al. 2020 – Unveiling the hidden diversity of rock-inhabiting fungi: Chaetothyriales from China. Journal of Fungi 6(4),187.

 

Entry by

Priyashantha AKH, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand 

 

(Edited by Saowaluck Tibpromma, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)

 

Published online 2 December 2024