Nielozyma X.Z. Liu, F.Y. Bai, M. Groenew. & Boekhout, gen. nov.

Index Fungorum number: MB813269; Facesoffungi number: FoF

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

This genus is proposed for the melastomae clade recognised from the seven-genes phylogeny (Liu et al. 2015).

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.

Type species: Nielozyma melastomae (Nakase, Tsuzuki, F.L. Lee & M. Takash.) X.Z. Liu, F.Y. Bai, M. Groenew. & Boekhout.

Notes:  – Nielozyma gen. nov. 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). This genus currently contains two described species (Table 1, Fig. 5E).

Fig. 5. 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 per- centages (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 %).

Fig. 5. (Continued).

Fig. 5. (Continued).

Fig. 5. (Continued).

Fig. 5. (Continued).

Species