Mycosphaerellales » Mycosphaerellaceae

Brunswickiella

Brunswickiella Videira & Crous, in Videira et al., Stud. Mycol. 87: 352 (2017).

Index Fungorum number: IF 822694; Facesoffungi number: FoF 08478, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.

Associated with leaf spot. Sexual morph: Unknown. Asexual morph: Conidiomata pycnidial, epiphyllous, immersed, black and with central ostiole, outer layer with irregular, brown, verruculose hyphae; basal stroma brown, verruculose, giving rise to conidiophores; basal cells brown, verruculose, upper cells hyaline, smooth, septate, subcylindrical, branched below. Conidiogenous cells hyaline, smooth, subcylindrical, terminal and lateral, proliferating percurrently at apex, or with periclinal thickening, intermixed among paraphyses that are branched, similar in length and at times become fertile. Conidia solitary, hyaline, smooth, guttulate, subcylindrical to narrowly fusoid-ellipsoidal, straight to slightly curved, widest in the middle, tapering to subobtuse apex and truncate hilum (adapted from Videira et al. 2017).

 

            Type species: Brunswickiella parsonsiae (Crous & Summerell) Videira & Crous

 

Notes: Brunswickiella is characterised by conidiomata with hyaline conidiogenous cells that proliferate per currently and produce hyaline fusoid-ellipsoid aseptate conidia. Crous et al. (2014a) mentioned that Brunswickiella is a microconidial state of Phaeophleospora but based on their phylogenetic analyses, Brunswickiella clusters outside the Phaeopleospora clade. Brunswickiella is morphologically and phylogenetically a well-supported genus in Mycosphaerellaceae. Molecular markers available for Brunswickiella are LSU, ITS and RPB2.

 

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