Tremellales » Bulleribasidiaceae

Nielozyma

Nielozyma X.Z. Liu, F.Y. Bai, M. Groenew. & Boekhout, in Li et al., Studies in Mycology 96: 135 (2020)

Etymology: The genus is named in honour of C.B. van Niel for his pioneering contributions to the study of ballistoconidium-forming yeasts.

Diagnosis: Basidiocarps not present. Colonies usually yellowish to brownish. Pseudohyphae and true hyphae not observed. Sexual reproduction not observed. Budding cells present. Ballistoconidia present. Fermentation absent. Nitrate not utilised. Major CoQ system CoQ-10.

Index Fungorum number: IF831677

Type species: Nielozyma melastomatis Nakase, Tsuzuki, F.L. Lee & M. Takash. ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout, in Li et al., Studies in Mycology 96: 135 (2020)

Notes: Nielozyma. is closely related to the genus Dioszegia (Nakase et al., 2004, Liu et al., 2015). Nielozyma species usually form yellowish to brownish colonies (Nakase et al. 2004), being distinct from those of Dioszegia species that usually are orange-coloured (Wang & Bai 2008).

Species

Nielozyma formosana Nakase, Tsuzuki, F.L. Lee & M. Takash. ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout 2020

Nielozyma melastomatis Nakase, Tsuzuki, F.L. Lee & M. Takash. ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout 2020

 

Figure 1. Phylogenetic relationships of yeasts and related taxa from the order Tremellales in Tremellomycetes obtained by maximum-likelihood analysis of LSU (D1/D2 domains) rRNA gene. Tree topology was backbone-constrained with the well-supported (>85 %) bipartitions of the topology of the seven-genes tree (Liu et al. 2015). Bootstrap percentages (BP) of maximum likelihood and neighbour-joining analyses from 1 000 replicates are shown respectively from left to right on the deep and major branches resolved and in brackets following recognised clades. The type species of accepted genera are in bold and the taxa not included in the seven-genes dataset (Liu et al. 2015) are in red. Note: ns, not supported (BP < 50 %).

 

References:

Li, AH, Yuan, FX, Groenewald, M, Bensch, K, Yurkov, AM, Li, K; Han, PJ, Guo, LD, Aime, MC, Sampaio, JP; Jindamorakot, S, Turchetti, B; Inacio, J, Fungsin, B, Wang, QM, Bai, FY. (2020). Diversity and phylogeny of basidiomycetous yeasts from plant leaves and soil: Proposal of two new orders, three new families, eight new genera and one hundred and seven new species. Studies in Mycology. 96:17-140

Liu, X. Z., Wang, Q. M., Theelen, B., Groenewald, M., Bai, F. Y., & Boekhout, T. (2015). Phylogeny of tremellomycetous yeasts and related dimorphic and filamentous basidiomycetes reconstructed from multiple gene sequence analyses. Studies in mycology, 81, 1-26.

Nakase, T., Jan-ngam, H., Tsuzuki, S., Lee, F. L., Jindamorakot, S., Potacharoen, W., ... & Takashima, M. (2004). Two new ballistoconidium-forming yeast species, Bullera melastomae and Bullera formosana, found in Taiwan. Systematic and applied microbiology, 27(5), 558-564.

Wang, Q. M., & Bai, F. Y. (2008). Molecular phylogeny of basidiomycetous yeasts in the Cryptococcus luteolus lineage (Tremellales) based on nuclear rRNA and mitochondrial cytochrome b gene sequence analyses: proposal of Derxomyces gen. nov. and Hannaella gen. nov., and description of eight novel Derxomyces species. FEMS yeast research, 8(5), 799-814.

 

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