Fungalpedia – Note 533, Deakozyma

 

Deakozyma Kurtzman & Robnett

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

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1 

Classification: Incertae sedis, Incertae sedis, Incertae sedis, Incertae sedis, Saccharomycotina, Ascomycota, Fungi

Deakozyma, a new non-ascosporic, ascomycetous yeast genera is introduced by Kurtzman and Robnett (2014) to accommodate Deakozyma indianensis as the type species, based on current descriptions of species and genera, and phylogenetic analyses (D1/D2 large subunit rRNA, small subunit rRNA, translation elongation factor-1α and RNA polymerase II, subunits B1 and B2). Zhang et al. (2017) isolated Deakozyma yunnanensis, the second species of Deakozyma, from rotten wood. Currently, two species are accepted in this genus and its growth is by multilateral budding and from formation of pseudohyphae and true hyphae, cells are ellipsoidal to elongate, divide by multilateral budding and occur singly, in pairs and in short chains (Kurtzman & Robnett 2014, Zhang et al. 2017). In addition, sugar fermentation is absent or weak for this genus (Kurtzman & Robnett 2014, Zhang et al. 2017). However, it should be noted that this genus has not been validated (Nom. inval., Art. 40.1 (Melbourne)).

Type species: Deakozyma indianensis C.P. Kurtzman & C.J. Robnett

Other accepted species: Species Fungorum – search Deakozyma

Figure 1 – Deakozyma indianensis. a Budding cells and pseudohyphae. b True hyphae with constricted septa. Scale Bar = 10 μm. Redrawn from Kurtzman and Robnett (2014).

 

References

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.

Zheng J, Liu KF, Liu XJ, Zhang L et al. 2017 – Deakozyma yunnanensis sp. nov., a novel yeast species isolated from rotten wood. International Journal of Systematic and Evolutionary Microbiology 67(7), 2436–2439.

 

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 9 December 2024

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