Fungalpedia – Note 2523, Mycoleptodiscus

 

Mycoleptodiscus. Ostaz.

Citation when using this data: Tennakoon DS et al. 2021 – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Magnaporthaceae, Magnaporthales, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

 

Notes: Mycoleptodiscus was proposed to accommodate M. terrestris which was previously known as Leptodiscus terrestris and M. sphaericus (Ostazeski 1967). Mycoleptodiscus species have superficial, sporodochial conidiomata, dark brown conidiogenous cells with a prominent circular aperture in the upper wall, hyaline conidia with cylindrical to fusiform shaped, and 0–2-septa, sometimes bearing an apical and/or basal cellular unbranched filiform appendage (Hyde et al. 2020b). Mycoleptodiscus species play vital roles as plant pathogens, animal opportunists, saprobes and endophytes (Thongkantha et al. 2009; Tibpromma et al. 2018; Hernandez-Restrepo et al. 2019; Hyde et al. 2020b). In this study we follow the recent treatment of Hernandez-Restrepo et al. (2019) for Mycoleptodiscus.

 

Type species: Mycoleptodiscus terrestris (Gerd.) Ostaz., Mycologia 59(6): 970 (1968) [1967].

Other accepted species: Species Fungorum – search Mycoleptodiscus.

 

image

 

Figure 1 – Mycoleptodiscus alishanensis (MFLU 19-2721, holotype): a, b Appearance of conidiomata on host. c Close-up of conidiomata. d, e Sporodochia. f–j Conidia. k A germinating conidium. l Colonies from above (on PDA). m Colonies from below (on PDA). Scale bars: d, e = 80 μm, f–k = 10 μm.

 

References

Hernandez-Restrepo M, Bezerra JDP, Tan YP, Wiederhold N, Crous PW, Guarro J, Gene J 2019 – Re-evaluation of Mycoleptodiscus species and morphologically similar fungi. Persoonia 42:205–227.

Hyde KD, de Silva N, Jeewon R, Bhat DJ, Phookamsak R, Doilom M, Boonmee S, Jayawardena RS, Maharachchikumbura SSN, Senanayake IC, Manawasinghe IS, Liu NG, Abeywickrama PD, Chaiwan N, Karunarathna A, Pem D, Lin CG, Sysouphanthong P, Luo ZL, Wei DP, Wanasinghe DN, Norphanphoun C, Tennakoon DS, Samarakoon MC, Jayasiri SC, Jiang HB, Zeng XY, Li JF, Wijesinghe SN, Devadatha B, Goonasekara ID, Brahmanage RS, Yang EF, Aluthmuhandiram JVS, Dayarathne MC, Marasinghe DS, Li WJ, Dissanayake LS, Dong W, Huanraluek N, Lumyong S, Liu JK, Karunarathna SC, Jones EBG, Al-Sadi AM, Xu JC, Harishchandra D, Sarma VV 2020b – AJOM new records and collections of fungi: 1–100. Asian J Mycol 3:22–294.

Ostazeski SA 1967 – An undescribed fungus associated with a root and crown rot of birdsfoot trefoil (Lotus corniculatus). Mycologia 10:970–975.

Thongkantha S, Jeewon R, Vijaykrishna D, Lumyong S, McKenzie EHC, Hyde KD 2009 – Molecular phylogeny of Magnaporthaceae (Sordariomycetes) with a new species, Ophioceras chiangdaoensis from Dracaena loureiri in Thailand. Fungal Divers 34:157–173.

Tibpromma S, Hyde KD, Bhat JD, Mortimer PE, Xu J, Promputtha I, Doilom M, Yang JB, Tang AM, Karunarathna SC 2018 – Identification of endophytic fungi from leaves of Pandanaceae based on their morphotypes and DNA sequence data from southern Thailand. MycoKeys 33:25–67.

 

Entry by

Danushka S. Tennakoon, CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, People’s Republic of China , School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Department of Plant Medicine, National Chiayi University, 300 Syuefu Road, Chiayi City 60004, Taiwan

 

Published online 28 May 2026

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