Pleosporales » Didymellaceae

Neoascochyta

Neoascochyta Qian Chen & L. Cai, Stud. Mycol. 82: 198 (2015)

Facesoffungi number: FoF 07462

Dothideomycetes, Pleosporomycetidae, Pleosporales, Didymellaceae

 

Saprobic on terrestrial plants or from soil or human bodies (Valenzuela-Lopez et al. 2018). Sexual morph: see Chen et al. (2015). Asexual morph: Conidiomata dark brown to black, pycnidial, solitary to gregarious or confluent, immersed to semi-immersed, globose to subglobose or ovoid, unilocular, glabrous, ostiolate. Ostiole single, centrally located. Conidiomatal wall composed of thick-walled, dark brown to hyaline cells of textura angularis to textura globosa. Conidiophores reduced to conidiogenous cells. Conidiogenous cells hyaline, enteroblastic, phialidic, doliiform to ampulliform, or short obpyriform, determinate, smooth-walled, formed in the inner cavity of conidiomata. Conidia hyaline, variable in shape, cylindrical to subcylindrical, or obclavate-ovoid to ellipsoidal, or fusiform, 01-septate, smooth-walled, guttulate.

 

Type species: Neoascochyta exitialis (Morini) Qian Chen & L. Cai, Stud. Mycol. 82: 200 (2015)

 

Notes: The species of Neoascochyta are cosmopolitan, and have been reported from Argentina, Austria, Belgium, China, Italy, Germany, Netherlands, New Zealand, Norway, South Africa, Sweden, Switzerland, USA (Chen et al. 2015, 2017, Valenzuela-Lopez et al. 2018). Twelve species are listed in Index Fungorum (2019), of which Neoascochyta adenii Crous & Cheew. clustered away from Neoascochyta species in our phylogenetic tree (data not shown here). Morphologically, N. adenii has setose conidiomata which are absent in other taxa of Neoascochyta, thus N. adenii is excluded from Neoascochyta. In addition, a new species Neoascochyta dactylidis and additional collections of N. desmazieri and N. tardicrescens are described from natural substrates.

 

Distribution: worldwide.

 

 

References:

 

Li WJ, McKenZie EHC, Liu JK, Bhat DJ, Dai DQ, Caporesi E, Tian Q, Maharachcikumbura SSN, Luo ZL, Shang QJ, Zhang JF, Tangthirasunun N, Karunarathna SC, Xu JC, Hyde KD (2020) Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100: pages279–801.

 

About Coelomycetes

The website Coelomycetes.org provides an up-to-date classification and account of all genera of the class Coelomycetes.

Contact