Fungalpedia – Note 805, Pseudomicrothecium
Pseudomicrothecium Y. Marín, Stchigel, Guarro & Cano
Citation when using this data: Huang SK et al. 2021 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Incertae sedis, Melanosporales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on Tuber. Sexual morph: Ascomata immersed, globose to subglobose, without an external opening, scattered, pale brown to brown, membranaceous, translucent, glabrous or setose. Peridium membranaceous, composed of pale brown to hyaline cells of textura angularis. Asci 2-spored, clavate to cylindrical, evanescent. Ascospores hyaline becoming dark brown, ellipsoidal to citriform, usually umbonate and truncate at both ends, smooth-walled, with a terminal indistinct germ pore at each end, mostly with guttules. Asexual morph: Undetermined (adapted from Fan et al. 2012).
Notes – The monotypic Pseudomicrothecium was established by Marin-Felix et al. (2018) and is characterized by ascomata without an external opening and 2-spored asci with ellipsoidal to citriform ascospores (Fan et al. 2012). In this study, P. subterraneum nests in Ceratostomataceae (80%ML/1.00BY) based on phylogenetic result.
Type species: Pseudomicrothecium subterraneum (L. Fan, C.L. Hou, P.F. Cannon & Yu Li) Y. Marín, Stchigel, Guarro & Cano, in Marin-Felix, Guarro, Cano-Lira, García, Miller & Stchigel, MycoKeys 44: 115 (2018).
Other accepted species: Species Fungorum – search Pseudomicrothecium.
References
Entry by
Shi-Ke Huang, State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China, The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang 550025, Guizhou Province, China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, The Mushroom Research Centre, Guizhou University, Guiyang 550025, China
Published online 14 September 2021