Cylindroaseptospora
Cylindroaseptospora Jayasiri, E.B.G. Jones & K.D. Hyde, in Jayasiri et al., Mycosphere 10(1): 67 (2019).
Index Fungorum number: IF 555542; Facesoffungi number: FoF 05243, 2 morphological species (Species Fungorum 2022), 2 species with molecular data.
Saprobic on decaying pod of Leucaena sp. Sexual morph: Unknown. Asexual morph: Coelomycetous. Conidiomata superficial or immersed in the agar, eustromatic, dark brown to black, more often complex with several merging cavities, without ostioles, opening by dissolution of upper cells; conidiomatal wall composed of a thick outer layer of textura angularis with relatively thin, dark brown walls, thin inner layer of textura angularis, pale yellow to hyaline walls. Conidiogenous cells discrete or assembled into protruding masses, indeterminate, phialidic, formed from the inner cells all over the conidiomatal wall, hyaline, broadly ampulliform to globose, with distinct periclinal thickening. Conidia hyaline, cylindrical, rounded at both ends, 1-celled, with thin and smooth walls, with contents minutely granular or with a few small polar guttules (adapted from Jayasiri et al. 2019).
Type species: Cylindroaseptospora leucaenae Jayasiri, E.B.G. Jones & K.D. Hyde
Notes: Cylindroaseptospora is characterised by superficial or immersed conidiomata formed in the agar, discrete, indeterminate, phialidic conidiogenous cells, and hyaline, cylindrical conidia with minutely granular contents. Cylindroaseptospora was placed in Didymosphaeriaceae based on morphology and phylogenetic analysis of SSU, ITS, LSU and tef1 sequenced data. Cylindroaseptospora is a distinct and well-defined genus in Didymosphaeriaceae. Molecular markers available for Cylindroaseptospora are ITS, LSU, SSU, RPB2 and TEF-1.
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