Fungalpedia – Note 281, Parafuscosporella

 

Parafuscosporella Jing Yang & K.D. Hyde

Citation when using this entry: Perera et al. 2024 (in prep) – Fungalpedia, genera described in 2016. 

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1

Classification: Fuscosporellaceae, Fuscosporellales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Yang et al. (2016) introduced the hyphomycetous genus Parafuscosporella, with P. moniliformis as the type. The genus was accepted within Fuscosporellaceae based on LSU-SSU-rpb2 phylogenetic analysis (Yang et al. 2016). Parafuscosporella is characterized by effuse, scattered, sporodochial, erumpent, spherical, velvety, and black colonies on natural substrates. The mycelium is partly immersed and partly superficial and composed of septate, hyaline, and pale brown hyphae. Semi-macronematous and mononematous conidiophores arranged compactly. They are flexuous, simple or branched, hyaline, and smooth walled. Conidiophores are mostly moniliform with ellipsoidal, clavate, or globose to subglobose cells. Monoblastic conidiogenous cells give rise to acrogenous conidia. Conidiogenous cells are terminal, integrated, occasionally discrete, globose, subglobose, ellipsoidal or clavate, hyaline, and smooth walled. Parafuscosporella produces ellipsoidal to broadly obpyriform smooth-walled conidia with a septum near the base, and sometimes with a small protuberance. Conidia are dark brown to black, with pale brown basal cells (Yang et al. 2016). The sexual morph is undetermined. Parafuscosporella species are saprobic on twigs in freshwater habitats (Yang et al. 2016, 2020; Boonyuen et al. 2021; Wang et al. 2023).

Type species: Parafuscosporella moniliformis Jing Yang, Bhat & K.D. Hyde

Other accepted species: Species Fungorum – search Parafuscosporella 

Figure 1 – Parafuscosporella moniliformis (MFLU 15-1161, holotype). a Sporodochia on submerged wood. b, c Conidiophores and conidia. d–f Conidia. g Conidia on PDA. h Conidia and conidiogenous cells on PDA. i Conidium on PDA. Scale bars: a = 500 μm, b–e = 20 μm, f = 15 μm, g = 30 μm, h = 10 μm, i = 5 μm. Redrawn from Yang et al. (2016).

 

References

Boonyuen N, Chuaseeharonnachai C, Nuankaew S, Kwantong P et al. 2021 – Novelties in Fuscosporellaceae (Fuscosporellales): Two new Parafuscosporella from Thailand revealed by morphology and phylogenetic analyses. Diversity 13, 517.

Wang L, Dong W, Yang JX, Zhu R et al. 2023 – Parafuscosporella xishuangbannaensis sp. nov. (Fuscosporellales, Sordariomycetes) from submerged wood in China. Phytotaxa 587, 218–228.

Yang H, Dong W, Yu XD, Bhat DJ et al. 2020 – Four freshwater dematiaceous hyphomycetes in Sordariomycetes with two new species of Parafuscosporella. Phytotaxa 441, 19–34.

Yang J, Maharachchikumbura SS, Bhat DJ, Hyde KD et al. 2016 – Fuscosporellales, a new order of aquatic and terrestrial Hypocreomycetidae (Sordariomycetes). Cryptogamie, Mycologie 37, 449–475.

 

Entry by

Rekhani Hansika Perera, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand.

 

(Edited by Kevin D. Hyde, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)

 

Published online 28 May 2024

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