Fungalpedia – Note 534, Middelhovenomyces 

 

Middelhovenomyces Kurtzman & Robnett

Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Yeast.

Index FungorumFacesoffungi, MycoBankGenBank, Fig. 1

Classification: Incertae sedis, Saccharomycetales, Saccharomycetidae, Saccharomycetes, Saccharomycotina, Ascomycota, Fungi.

Kurtzman and Robnett (2014) combined Candida petrohuensis and C. tepae as Middelhovenomyces petrohuensis and M. tepae to establish a new non-ascosporic, ascomycetous yeast genus. Middelhovenomyces was introduced to accommodate M. petrohuensis and M. tepae (the type species) based on current descriptions and phylogenetic analyses (D1/D2 large subunit rRNA, small subunit rRNA, translation elongation factor-1α and RNA polymerase II, subunits B1and B2). Members of Middelhovenomyces are found in rotted wood. Growth of Middelhovenomyces occurs via multilateral budding and formation of pseudohyphae. Sugar fermentation was not observed. Phylogenetically, the genus Middelhovenomyces is most closely related to Diddensiella and Zygoascus (Kurtzman & Robnett 2014).

Type species: Middelhovenomyces tepae (Grinb.) C.P. Kurtzman & C.J. Robnett

Other accepted species: Species Fungorum – search Middelhovenomyces

Figure 1 – Middelhovenomyces tepae. a cells after 3 days at 25 ℃, in glucose-yeast extract-peptone water, b pseudomycelium on corn meal agar, after 6 days at 25 ℃. Scale bar: a, b = 10 μm. Redrawn from Ramírez and González (1984).

 

 

Reference

Kurtzman CP, Robnett CJ. 2014 – Three new anascosporic genera of the Saccharomycotina: Danielozyma gen. nov., Deakozyma gen. nov. and Middelhovenomyces gen. nov. Antonie van Leeuwenhoek 105, 933–942.

Ramírez C, González A. 1984 – Three new, non-fermenting, and nitrate-negative Candida species isolated from decayed wood in the evergreen rainy Valdivian Forest of southern Chile. Mycopathologia 87, 175–180.

 

Entry by

Lu W, Excellence Center of Microbial Diversity and Sustainable Utilization, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, China

 

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

 

Published online 13 December 2024