Byssosphaeria musae
Byssosphaeria musae
Phookamsak & K.D. Hyde, Fungal Diversity 72: 119 (2015)
Classification: Ascomycota-Pezizomycotina-Dothideomycetes-Pleosporales-Melanommataceae-Byssosphaeria
Host species: Elaeis guineensis (Xiong et al. 2025)
Known distribution: China (Hyde et al. 2020, Zhang et al. 2024, Xiong et al. 2025), Thailand (Liu et al. 2015).
IF Number: IF550932 Mycobank Number: 550932 FOF Number: FoF00436
Description
Saprobic on dead segment of Borassus flabellifer. Asexual morph: Not observed. Sexual morph: Ascomata 400–450 × 370–400 μm (x̄ = 420 × 395 μm, n = 10), gregarious, scattered, superficial on subiculum, visible as dark spots on host, orange to yellow around pore, uni-loculate, globose to subglobose, setose, apex rounded, ostiole central, with pore-like opening, setae 5.5 µm wide. Peridium 60–100 μm wide, thick-walled, of equal thickness, composed of several layers of dark brown to black cells, arranged in textura angularis to textura prismatica. Hamathecium 1–2 μm wide, composed of dense, trabeculate, distinctly septate, anastomosing, pseudoparaphyses, embedded in a hyaline gelatinous matrix. Asci 75–135 × 10–15 μm (x̄ = 108 × 13.7 μm, n = 25), 8-spored, bitunicate, fissitunicate, clavate, long pedicellate with knob-like pedicel, apically rounded, with well-developed ocular chamber. Ascospores 30–35 ×5–8 μm (x̄ = 32 × 7 μm, n=30), overlapping 1–2-seriate, fusiform, with acute ends, hyaline to pale brown when young, becoming light brown at maturity, 1(–3)-septate, not constricted at the septa, slightly curved, smooth-walled, bearing delicate hyaline appendages over ends with wing-like appendages near the central septum.
Culture conditions: Colonies on PDA reaching 40 mm diam., after 1 week at 25°C, circular, white to cream or pale yellowish, intermixed with yellowish to orangish hyphae; reverse cream to white yellowish at the margin, yellowish-brown at the centre, medium dense to dense, irregular, flattened to slightly raised, fluffy to feathery, effuse.
Byssosphaeria musae (MHZU 23-0180, new host record). a, b Ascomata on substrate. c Vertical sections of ascomata. d Cells of peridium. e Setae. f–h Asci. i–m Ascospores (k ascospore in Indian ink). n Germinating conidium. o The front of culture on PDA at 25℃ and the reverse of culture on PDA at 25℃. Scale bars: c = 50 µm, d–n = 10 µm
Reference
Hyde KD, de Silva NI, 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 2020 – AJOM new records and collections of fungi: 1-100. Asian Journal of Mycology 3(1), 22–294, Doi 10.5943/ajom/3/1/3
Liu JK, Hyde KD, Jones EBG, Ariyawansa HA, Bhat DJ, Boonmee S, Maharachchikumbura SSN, McKenzie EHC, Phookamsak R, Phukhamsakda C, Shenoy BD, Abdel-Wahab MA, Buyck B, Chen J, Chethana KWT, Singtripop C, Dai DQ, Dai YC, Daranagama DA, Dissanayake AJ, Doilom M, Dsouza MJ, Fan XL, Goonasekara ID, Hirayama K, Hongsanan S, Jayasiri SC, Jayawardena RS, Karunarathna SC, Li WJ, Mapook A, Norphanphoun C, Pang KL, Perera RH, Peršoh D, Pinruan U, Senanayake IC, Somrithipol S, Suetrong S, Tanaka K, Thambugala KM, Tian Q, Tibpromma S, Udayanga D, Wijayawardene NN, Wanasinghe D, Wisitrassameewong K, Zeng XY, Abdel-Aziz FA, Adamčík S, Bahkali AH, Boonyuen N, Bulgakov T, Callac P, Chomnunti P, Greiner K, Hashimoto A, Hofstetter V, Kang JC, Lewis J, Li XH, Liu XZ, Liu ZY, Matsumura M, Mortimer PE, Rambold G, Randrianjohany E, Sato G, Sri-Indrasutdhi V, Tian CM, Verbeken A, von Brackel W, Wang Y, Wen TC, Xu JC, Yan JY, Zhao RL, Camporesi E (2015) Fungal diversity notes 1–110: taxonomic and phylogenetic contributions to fungal species. Fungal Divers 72:1–197. https://doi.org/10.1007/s13225-015-0324-y
Xiong, Y. R., Lu, L., Mapook, A., Maharachchikumbura, S. S. N., McKenzie, E. H. C., Kevin, D. H., Manawasinghe, I. S. (2025a) Fungal Safari on Palm Trees: New Discoveries from East Asia and 1990-2025 Years of Global Records [Manuscript preparation]. Fungal Diversity.
Zhang L, Bao DF, Shen HW, Luo ZL (2024) Diversity of lignicolous freshwater fungi from Yuanjiang River in Yunnan (China), with the description of four new species. J Fungi 10:881. https://doi.org/10.3390/jof10120881
Recent Notes
Important NewsUpdated Log
Recent Genus
ConioscyphaCodinaeella
Seriascoma
Recent Species
Dothiorella sarmentorumDistoseptispora yichunensis
Distoseptispora saprophytica