Fungalpedia – Note 459, Fereydouniaceae 

 

Fereydouniaceae S. Nasr, Soudi, H.D.T. Nguyen, M. Lutz & Piątek 

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

Index FungorumFacesoffungi, MycoBankGenBank, Fig. 1 

Classification: Fereydouniaceae, Urocystidales, Incertae sedis, Ustilaginomycetes, Ustilaginomycotina, Basidiomycota, Fungi.

Fereydouniaceae was introduced by Nasr et al. (2014) to accommodate the genus Fereydounia and species F. khargensis. Fereydounia khargensis has been identified in plant remnants of Iran (Nasr et al. 2014). These asexual species live freely in the environment and are not connected to any host plant. Ballistoconidia of these species are blastospores with retraction septate hyphae and pseudohyphae. Vegetative reproduction occurs through polar budding of blastospores in short stalks. However, sexual morph structures and teliospore production have not yet been identified (Nasr et al. 2014). The nuclear SSU, LSU (D1/D2 domain), and ITS rDNA molecular markers were used to elucidate the phylogenetic position of this family (Nasr et al. 2014). 

Type genus: Fereydounia S. Nasr, M.R. Soudi, H.D.T. Nguyen, M. Lutz, M. Piątek

Other accepted species: Species Fungorum – search Fereydouniaceae

 

Figure 1 – Fereydounia khargensis (IBRC-M30116, holotype). a, b Ballistoconidia. c, d Blastospores produced by polar budding on short stalks. Pseudohyphae emerging from swollen vegetative cells. Redrawn from Nasr et al. (2014).

 

Reference

Nasr S, Soudi MR, Shahzadeh Fazeli SA, Nguyen HD, Lutz M, & Piątek M. 2014 – Expanding evolutionary diversity in the Ustilaginomycotina: Fereydouniaceae fam. nov. and Fereydounia gen. nov., the first urocystidalean yeast lineage. Mycological Progress 13, 1217–1226. 

 

Entry by 

de Silva NI, 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 3 December 2024