Apseudocercosporella
Apseudocercosporella Videira & Crous, in Videira et al., Stud. Mycol. 83: 89 (2016).
Index Fungorum number: IF 816816; Facesoffungi number: FoF 08474, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Associated with leaf spot. Sexual morph: Unknown. Asexual morph: Mycelium composed of hyaline, septate, branched, thin-walled, smooth hyphae. Conidiophores arising from hyphae, simple, and occasionally branched, straight and subcylindrical to flexuous, geniculate-sinuous, septate or aseptate, hyaline, thin-walled, smooth. Conidiogenous cells integrated, terminal or conidiophores often reduced to conidiogenous cells, subcylindrical to geniculate-sinuous, conidiogenous loci slightly thickened and darkened. Conidia formed singly, filiform, or subcylindrical, hyaline, thin-walled, smooth, septate or aseptate, base more or less truncate, hilum slightly thickened and darkened (adapted from Videira et al. 2017).
Type species: Apseudocercosporella trigonotidis Videira, H.D. Shin & Crous
Notes: Apseudocercosporella is characterised by straight and subcylindrical conidiophores, subcylindrical to geniculate-sinuous conidiogenous cells and filiform, or subcylindrical, hyaline conidia. Apseudocercosporella accommodates a pseudocercosporella-like species that is not congeneric with Pseudocercosporella sensu stricto based on P. bakeri. Apseudocercosporella can be distinguished from similar genera in having conidial hila and conidiogenous loci that are slightly thickened and darkened instead of being inconspicuous. Apseudocercosporella is the first cercosporoid species isolated from Trigonotis. Apseudocercosporella is a distinct and highly supported genus in Mycosphaerellaceae. Molecular markers available for Apseudocercosporella are ITS, LSU, actin (act A), RPB2 and TEF-1.
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