Fungalpedia – Note 1016, Atrokylindriopsis

 

Atrokylindriopsis. Y.R. Ma & X.G. Zhang.

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

Index Fungorum, Facesoffungi, MycoBank, GenBank

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

Saprobic on dead branches of an unidentified broadleaf tree in terrestrial habitats. Colonies effuse, hairy, brown. Mycelium immersed to superficial, composed of branched, pale brown to brown, septate, smooth-walled hyphae. Sexual morph: Undetermined. Asexual morph: hyphomycetous. Conidiophores macronematous, erect, unbranched, cylindrical, brown, septate, straight or slightly flexuous, smooth-walled, thick-walled. Conidiogenous cells terminal, integrated, enteroblastic, phialidic, brown, smooth-walled. Conidia solitary, acrogenous, broadly cylindrical or rounded-cubical, pale brown to brown, longitudinally 3-euseptate, straight or curved, with a setula at each corner, attached to the conidiogenous locus at the midpoint of their long side and giving the appearance of a ‘T’, smooth-walled (Ma et al. 2015).

Notes – Atrokylindriopsis Y.R. Ma & X.G. Zhang was established by Ma et al. (2015) to accommodate A. setulosa Y.R. Ma & X.G. Zhang associated with dead branches of an unidentified broadleaf tree in China. It is characterized by monophialidic conidiogenous cells and pigmented, septate, setulate conidia that are attached to conidiophores at the midpoint of their long side during conidiogenesis, giving the appearance of a ‘T’. Ma et al. (2015) suggested placing Atrokylindriopsis in Chaetothyriales, but no family was assigned. Wijayawardene et al. (2020) placed this genus in an uncertain phylogenetic position in Chaetothyriales genera incertae sedis. Quan et al. (2020) showed that A. setulosa clustered with Capronia fungicola in Herpotrichiellaceae. In our study, we include the type species of Atrokylindriopsis and the combined ITS and LSU phylogenetic analysis shows that A. setulosa (HMAS245592) forms a sister group with Marinophialophora garethjonesii (MFLUCC 16-1449) with 0.93 BY PP support in Herpotrichiellaceae.

Type species: Atrokylindriopsis setulosa Y.R. Ma & X.G. Zhang, Mycol. Progr. 14: 3 (2015).

Other accepted species: Species Fungorum – search Atrokylindriopsis.

 

References

Ma YR, Xia JW, Gao JM, Li XY et al. 2015 – Atrokylindriopsis, a new genus of hyphomycetes from Hainan, China, with relationship to Chaetothyriales. Mycological Progress 14, 77.

Quan Y, Muggia L, Moreno LF, Wang M et al. 2020 – A re-evaluation of the Chaetothyriales using criteria of comparative biology. Fungal Diversity 103, 47–85.

Wijayawardene NN, Hyde KD, Khalil Tawfeeq Al-Ani L, Tedersoo L et al. 2020 – Outline of fungus and fungi-like taxa. Mycosphere 11(1), 1060–1456.

 

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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