Fungalpedia – Note 1015, Aculeata

 

Aculeata. W. Dong, H. Zhang & K.D. Hyde.

Citation when using this data: Tian Q et al. 2021 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank

Classification: Herpotrichiellaceae, Chaetothyriales, Chaetothyriomycetidae, Eurotiomycetes, Pezizomycotina, Ascomycota, Fungi

Saprobic on submerged wood. Colonies sporodochial, scattered, punctiform, black, granular, glistening. Mycelium mostly immersed in the substratum, consisting of branched, septate, subhyaline to pale brown, smooth hyphae. Sexual morph: Undetermined. Asexual morph: Conidiophores indistinct. Conidiogenous cells monoblastic, holoblastic, integrated, terminal, determinate, hyaline to light olive, pyriform or obovoid. Conidia acrogenous, solitary, subhyaline to light olive, vesiculate, smooth at first, progressively becoming olive, crucially septate, finally becoming olive to brown, muriform, moderately constricted at the septa, darker and thicker at septa, aculeate, bearing densely packed, subulate, obtuse, brown to black spines around conidia, ellipsoid or oval in surface view, clavate in lateral view, composed of a light-colored, cuneiform basal cell, thick-walled (Dong et al. 2018). 

Notes – Aculeata W. Dong et al. was introduced to accommodate A. aquatica W. Dong et al. which has short or indistinct conidiophores and oval, muriform conidia. The asexually typified genera in Herpotrichiellaceae, i.e. Cladophialophora, Fonsecaea, are dematiaceous black yeasts with unicellular conidia in chains, or fused and bent in chains and may be related to Aculeata (Dong et al. 2018). Aculeata resembles Melanoctona in having short conidiophores and muriform conidia, while species of Aculeata have a vesiculate wall with densely packed spines versus being smooth-walled in Melanoctona (Tian et al. 2016, Dong et al. 2018).

Type species: Aculeata aquatica W. Dong, H. Zhang & K.D. Hyde, in Dong, Hyde, Bhat & Zhang, Mycol. Progr. 17(5): 622 (2018)

Other accepted species: Species Fungorum – search Aculeata.

 

References

Dong W, Hyde KD, Bhat DJ, Zhang H. 2018 – Introducing Aculeata aquatica gen. et sp. nov., Minimelanolocus thailandensis sp. nov. and Thysanorea aquatica sp. nov. (Herpotrichiellaceae, Chaetothyriales) from fresh water in northern Thailand. Mycological Progress 17, 617–629.

Tian Q, Doilom M, Luo ZL, Chomnunti P et al. 2016 – Introducing Melanoctona tectonae gen. et sp. nov. and Minimelanolocus yunnanensis sp. nov. (Herpotrichiellaceae, Chaetothyriales). Cryptogamie, Mycologie 37, 477–492.

 

Entry by

Qing Tian, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand

 

Published online 16 December 2021

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