Pleosporales » Didymellaceae

Anthodidymella

Anthodidymella Phukhams., Camporesi & K.D. Hyde, in Phukhamsakda et al., Fungal Diversity: 10.1007/s13225-020-00448-4, [21] (2020).

 Index Fungorum number: IF 557128; Facesoffungi number: FoF 07255, 3 morphological species (Species Fungorum 2022), 3 species with molecular data.

Saprobic or necrotic on leaf and dead stems of herbaceous plants. Sexual morph: Ascomata superficial, solitary or clustered, globose or subglobose to pyriform, with elongated ostioles. Perithecial wall consisting of textura globulosa. Hamathecium composed of numerous, dense, pseudoparaphyses. Asci 8-spored, bitunicate, cylindrical club-shaped pedicel. Ascospores uniseriate or partially overlapping, ovate to obpyriform, uniseptate, hyaline (adapted from Woudenberg et al. 2009). Asexual morph: Conidiomata pycnidial, uniloculate, immersed under host epidermis, subglobose to depressed, coriaceous, thin-walled, dark brown to brown, with papillate ostioles. Conidiomatal wall thin layers, pseudoparenchymatous, with brown cells of textura globulosa, lined with a hyaline cell-layer bearing conidiogenous cells. Conidiophores reduced to conidiogenous cells. Conidiogenous cells phialidic, determinate, discrete, ampulliform, cylindrical to subcylindrical, hyaline. Conidia oblong or oval, rounded ends, hyaline, aseptate or septate, smooth-walled. Chlamydospores absent (adapted from Phukhamsakda et al. 2020).

Type species: Anthodidymella ranunculacearum Phukhams., Camporesi & K.D. Hyde

Notes: Anthodidymella resembles Didymella in having solitary or grouped, globose ascomata, thin-walled cells of textura globulosa, and ovate to obpyriform, uniseptate, hyaline ascospores lacking a mucilaginous sheath. Anthodidymella differs from Didymella in having broad-cylindrical asci and obpyriform ascospores. Phylogenetically, Anthodidymella is a well-supported distinct genus in Didymellaceae. Molecular markers available for Anthodidymella are ITS, LSU, SSU, Actin, RPB2 and TEF-1.

 

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