Stagonosporopsis
Stagonosporopsis Died. emend. Aveskamp et al., Stud. Mycol. 65: 44 (2010).
Index Fungorum number: IF 10059; Facesoffungi number: FoF 00160, 43 morphological species (Species Fungorum 2022), 30 species with molecular data.
Pathogenic on leaf. Sexual morph: Ascomata pseudothecial, if present, occurring only in vivo, globose to subglobose, sometimes with a somewhat conical neck. Asci cylindrical or subclavate, 8-spored, biseriate. Ascospores ellipsoidal, fusiform or obovoid, 1- septate, guttulate. Asexual morph: Conidiomata pycnidial, globose to subglobose, superficial on or immersed into the agar, solitary or confluent, ostiolate or poroid. Pycnidial wall pseudoparenchymatous, 2–6-layered, with an outer wall composed of 1–3 layers of brown olivaceous cells. Conidiogenous cells phialidic, hyaline, smooth, ampulliform or doliiform. Conidia often dimorphic: majority aseptate, hyaline, ellipsoidal to subglobose, thin- and smooth-walled. Conidia of the second type smaller in size, can be produced both in vivo and in vitro in the same pycnidia, unicellular or with up to 3 septa (adapted from Aveskamp et al. 2010).
Type species: Stagonosporopsis boltshauseri (Sacc.) Died.
Notes: Stagonosporopsis boltshauseri was previously known as Ascochyta boltshauseri Sacc., Stagonosporopsis was established to separate taxa which seldom produce multiseptate conidia from Ascochyta. Stagonosporopsis is characterised by pycnidial, globose to subglobose conidiomata, phialidic, hyaline, smooth, ampulliform or doliiform conidiogenous cells and, hyaline, ellipsoidal to subglobose conidia. The sexual morph is characterised by pseudothecial globose to subglobose, ascomata, cylindrical or subclavate, 8-spored asci and ellipsoidal, fusiform or obovoid, uniseptate, guttulate ascospores. Aveskamp et al. (2010) provided an emended description for Stagonosporopsis. Stagonosporopsis is a distinct and monophyletic genus in Didymellaceae. Molecular markers available for Stagonosporopsis are ITS, LSU, SSU, Actin, BTUB, Calmodulin and RPB2.
Recent News
Recent paper to be publishedRecent Genus
NothocladosporiumPhillipsiella
Ampelomyces
Recent Species
Nothocladosporium syzygiiPhillipsiella atra
Curreya conorum
