Fungalpedia – Note 500, Symbiotaphrinales 

 

Symbiotaphrinales Machouart, Samerp., de Hoog & Gueidan

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

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

Classification: Symbiotaphrinales, Incertae sedis, Xylonomycetes, Pezizomycotina, Ascomycota, Fungi

Symbiotaphrinales was first mentioned by Machouart et al. (2014) to classify Hyphozyma lignicola, Symbiotaphrina buchneri, and Symbiotaphrina kochii, but not officially named. These names were later validated and officially named by Baral et al. (2017) based on multigene analysis. The family Symbiotaphrinaceae, a monogeneric family of Symbiotaphrinales, accommodates the symbiotic yeast Symbiotaphrina, with S. buchneri as the type species. Currently, seven species of Symbiotaphrinales are accepted in the Index Fungorum (2024). The asexual morph of Symbiotaphrinales is characterized by septate, smooth, branched, and anastomosing mycelia formed singly or in chains or branched, thin-walled, hyaline, smooth conidiogenous cells, and cylindrical, hyaline conidia (Baral et al. 2017). The sexual morph is characterized by scattered to gregarious, black, ellipsoid, disk remaining flat to slightly convex apothecia; cylindric-clavate, saccate, fissitunicate, multi-spored asci, non-septate, cylindrical to ellipsoid, hyaline, or with a few small LBs in each pole ascospore; cylindrical, septate, unbranched, or branched paraphyses (Baral et al. 2017).

Type family: Symbiotaphrinaceae Baral & E. Weber

Other accepted species: Species Fungorum – search Symbiotaphrinales

 

References

Baral HO, Weber E, Marson G & Quijada L. 2018 – A new connection between wood saprobism and beetle endosymbiosis: the rarely reported saprobic discomycete Tromeropsis is congeneric with the symbiotic yeast Symbiotaphrina (Symbiotaphrinales, Xylonomycetes) and two asexual morphs misplaced in Hyphozyma. Mycological Progress 17, 215–254.

Machouart M, Samerpitak K, De Hoog GS & Gueidan C. 2014 – A multigene phylogeny reveals that Ochroconis belongs to the family Sympoventuriaceae (Venturiales, Dothideomycetes). Fungal Diversity 65, 77–88.

Index Fungorum 2024 – https://wwwindexfungorumorg/Names/Namesasp (Accessed 19 January 2024).

 

Entry by 

Chen X-M, Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011 P.R. China.

 

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

 

Published online 9 December 2024

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