Fungalpedia – Note 961, Ophiobolus

 

Ophiobolus Riess

Citation when using this data: Brahmanage RS et al. 2020 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Phaeosphaeriaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

Ophiobolus was established based on the type species O. phiobolus disseminans by Reiss (1854). Species in Ophiobolus are characterized by ascomata with a long cylindrical erumpent beak lined with hyaline periphyses, cylindrical to cylindric-clavate asci usually in linear fascicles, and tetraseriate, multiseptate, phragmosporous to scolecosporous, elliptical to fusiform ascospores, sometimes bearing globose appendages at each end, sometimes with band-like or cushion-shaped appendages near the first-formed septum (Shoemaker & Babcock 1989, Phookamsak et al. 2014, 2017). Phookamsak et al. (2017) reported a polyphyletic nature of Ophiobolus-like fungi in Phaeosphaeriaceae. The type, Ophiobolus disseminans, showed close phylogenetic affinities with species of Entodesmium and Premilcurensis species. Those species were synonymized under Ophiobolus (Phookamsak et al. 2017).

Type species: Ophiobolus disseminans Riess, Hedwigia 1(6): 27 (1854).

Other accepted species: Species Fungorum – search Ophiobolus.

 

image

 

Figure 1 – Ophiobolus lathyri (MFLU 20-0395, holotype). a Appearance of ascomata on host. b Close-up of ascomata. c Section of an ascoma. d Section of peridium. e Pseudoparaphyses. f–h Asci. i, j Ascospores. Scale bars: c = 500 µm, d = 100 µm, f–h = 200 µm, i–j = 100 µm.

 

References

Phookamsak R, Liu JK, McKenzie EH, Manamgoda DS et al. 2014 – Revision of Phaeosphaeriaceae. Fungal Diversity 68, 159–238.

Phookamsak R, Wanasinghe DN, Hongsanan S, Phukhamsakda C. 2017 – Towards a natural classification of Ophiobolus and ophiobolus-like taxa; introducing three novel genera Ophiobolopsis, Paraophiobolus and Pseudoophiobolus in Phaeosphaeriaceae (Pleosporales). Fungal Diversity 87, 299–339.

Reiss MLC. 1854 – Neue Kernpilze. Hedwigia 1, 23–28.

Shoemaker RA, Babcock CE. 1989 – Phaeosphaeria. Canadian Journal of Botany 67, 1500–1599.

 

Entry by

Rashika S. Brahmanage, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand, Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, People’s Republic of China, School of Science, Mae Fah Luang University, Chiang Rai, Chiang Rai, 57100, Thailand

 

Published online 29 September 2020

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