Paratrimmatostroma
Paratrimmatostroma Jayasiri, Phookamsak, D.J. Bhat & K.D. Hyde, in Phookamsak et al., Fungal Diversity: 10.1007/s13225-019-00421-w, [43] (2019).
Index Fungorum number: IF 556153; Facesoffungi number: FoF 04960, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic on dead fronds of a fern. Sexual morph: Unknown. Asexual morph: Hyphomycetous. Sporodochia effuse or confluent, visible as black powdery, superficial mass on host substrate, flattened, light brown, with a membranous base, composed of pseudoparenchymatous cells of textura angularis. Mycelium immersed, composed of septate, pale brown, branched hyphae. Conidiophores macronematous, or semi-macronematous, mononematous, prostrate, or erect, usually short, oblong to cylindrical, straight or flexuous, arising as lateral branches from creeping hyphae, septate, branched or unbranched, slightly constricted at the septa so as to give a monilioid appearance, pale brown, smooth-walled. Conidiogenous cells holoblastic, mono- to polyblastic, integrated, terminal, brown, smooth-walled. Conidia solitary, acropleurogenous, dark brown, paler at the apical cell, branched, straight or flexuous, variable in shape, helicoid, cylindrical, sigmoid, or reniform, solitary, tapering near apex and base, rounded at tip, septate, constricted at the septa, smooth and thick-walled (adapted from Phookamsak et al. 2019).
Type species: Paratrimmatostroma kunmingensis Jayasiri, Phookamsak, D.J. Bhat & K.D. Hyde
Notes: Paratrimmatostroma is characterised by effuse or confluent sporodochia, macronematous, or semi-macronematous conidiophores, holoblastic, mono- to polyblastic, integrated, terminal, brown, smooth-walled conidiogenous cells, and solitary, acropleurogenous, dark brown conidia. Paratrimmatostroma resembles Trimmatostroma in having effuse to confluent sporodochia, semi-macronematous, mononematous conidiophores, integrated, terminal conidiogenous cells, and branched, straight or flexuous, septate, pigmented conidia, which are inconstant in shape (Elli 1971, Crous et al. 2007a). However, Paratrimmatostroma is phylogenetically distinct and belongs to Parabambusicolaceae while Trimmatostroma is a distinct genus in Mollisiaceae (Crous et al. 2007a, Wijayawardene et al. 2018a). Paratrimmatostroma is a well-resolved genus in Parabambusicolaceae. The ideal molecular markers to differentiate between species of Paratrimmatostroma are ITS and TEF1-a sequence data. Molecular markers available for Paratrimmatostroma are ITS, LSU, SSU and TEF-1.
Recent News
Recent paper to be publishedRecent Genus
NothocladosporiumPhillipsiella
Curreya
Recent Species
Nothocladosporium syzygiiPhillipsiella atra
Curreya conorum
