Capnodiales » Teichosporaceae

Paulkirkia

Paulkirkia Wijayaw., Wanas., Tangthir., Camporesi & K.D. Hyde, in Wijayawardene et al., Fungal Diversity: 10.1007/s13225-016-0360-2, [198] (2016).

Index Fungorum number: IF 551793; Facesoffungi number: FoF 01677, 1 morphological species (Species Fungorum 2021), 1 species with molecular data.

Saprobic on host. Sexual morph: Unknown. Asexual morph: Conidiomata pycnidial, subepidermal to superficial, solitary to gregarious, globose or subglobose, unilocular, dark brown to black. Conidiomata wall several-layered, outer layer thick in above, thin at bottom, composed of thick-walled, brown cells of textura angularis, inner layer composed of thin walled, hyaline cells of textura angularis. Conidiophores reduced to conidiogenous cells. Conidiogenous cells holoblastic, proliferating 1–2 times percurrently but mostly only 1 time, cylindrical to funnel-shaped, unbranched, discrete, indeterminate, hyaline to pale brown, smooth. Conidia ellipsoidal or oblong to irregular, rounded apex, truncate base, 0–1-septate, pale to dark brown, guttulate or eguttulate, thin-walled, verrucose (Adapted from Wijayawardene et al. 2014).

 

Type species: Paulkirkia arundinis Wijayaw., Wanas., Tangthir., Camporesi & K.D. Hyde

 

Notes: Paulkirkia is characterised by globose or subglobose, unilocular, dark brown to black conidiomata, holoblastic conidiogenous cells, and ellipsoidal or oblong to irregular conidia. Paulkirkia share similarities with Microdiplodia and Verrucoconiothyrium. However, the validity of Microdiplodia is doubtful and the sequence data of the type species of Microdiplodia is unavailable. Phylogenetic analyses by Wijayawardene et al. (2016) have shown that Paulkirkia clusters in Teichosporaceae (Floricolaceae) (Wijayawardene et al. 2016). Currently, Paulkirkia is a distinct and well-supported genus in Teichosporaceae. Only LSU data is available for P. arundinis in GenBank.

 

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