Tubeufiales » Tubeufiaceae » Tubeufia

Tubeufia hyalospora

Tubeufia hyalospora Y.Z. Lu, Boonmee & K.D. Hyde

Index Fungorum number: IF552220; Facesoffungi number: FoF02361

Etymology: ‘hyalospora’ referring to hyaline helicospores of asexual morph.

Holotype: MFLU 16-1135

 

Saprobic on decaying woody in flowing freshwater stream. Mycelium partly immersed, partly superficial, composed of pale brown, septate, sparsely branched hyphae, with masses of crowded conidia. Sexual morph Undetermined. Asexual morph hyphomycetous; helicosporous. Conidiophores pale brown, macronematous, erect, short, smooth-walled. Conidiogenous cells monoblastic, integrated, each with single conidium. Conidia 16–33 μm diam., conidial filament 3–5 μm wide (x̄ = 22 × 4 μm, n = 20), 110–225 μm long, coiled 2½–3½ times, rounded at apical end, multi-septate, slightly constricted at septa, hyaline, smooth-walled.

 

Culture characteristics: Conidia germinating on water agar (WA) within 12 h and germ tubes produced from conidia. Colonies growing on malt extract agar (MEA), reaching 26 mm in 3 weeks at 28 °C, with an undulate edge, pale brown to brown, dark brown, white at margin. Mycelium superficial and partially immersed, branched, septate, hyaline to pale brown, smooth.

 

Material examined: THAILAND, Prachuap Khiri Khan, Bang Sapan, Ron Thai, on decaying wood in flowing freshwater stream, 30 July 2015, K.D. Hyde, TF03 (MFLU 16-1135, holotype); ex-type living culture, MFLUCC 15-1250, TBRC.

 

Notes: Tubeufia hyalospora grouped within the Tubeufia clade but did not cluster with any known species (Hyde et al. 2016). Tubeufia hyalospora forms an asexual morph on the natural substrate, which is morphologically similar to T. tectonae (Doilom et al. 2016). Its conidia (diam. 16–33 μm) are narrower than those of T. tectonae (32–55 μm) and are tightly coiled, but in T. tectonae most are loosely coiled or uncoiled. (Hyde et al. 2016)

 

Freshwater distribution: Thailand (Hyde et al. 2016)

 

Fig 1 Tubeufia hyalospora (MFLU 16-1135, holotype). a Conidia arise directly from hyphal cells on natural substrate. b, c Conidiophores with conidia. d–f Conidia. g Germinating spore. h, i Colonies on MEA from surface and reverse. Scale bars a = 100 μm, b, c = 50 μm, d–g = 20 μm, h, i = 30 mm (Hyde et al. 2016)

 

References

Doilom M, Dissanayake AJ, Wanasinghe DN, Boonmee S, Liu J-K, Bhat DJ, Taylor JE, Bahkali AH, McKenzie EHC, Hyde KD (2017) Microfungi on Tectona grandis (teak) in Northern Thailand. Fungal Divers 82:107–182. https://doi.org/10.1007/s13225-016-0368-7

Hyde KD, Hongsanan S, Jeewon R, Bhat DJ, McKenzie EHC, Jones EBG, Phookamsak R, Ariyawansa HA, Boonmee S, Zhao Q, Abdel-Aziz FA, Abdel-Wahab MA, Banmai S, Chomnunti P, Cui BK, Daranagama DA, Das K, Dayarathne MC, de Silva NI, Dissanayake AJ, Doilom M, Ekanayaka AH, Gibertoni TB, Góes-Neto A, Huang SK, Jayasiri SC, Jayawardena RS, Konta S, Lee HB, Li WJ, Lin CG, Liu JK, Lu YZ, Luo ZL, Manawasinghe IS, Manimohan P, Mapook A, Niskanen T, Norphanphoun C, Papizadeh M, Perera RH, Phukhamsakda C, Richter C, André ALCM, Drechsler-Santos ER, Senanayake IC, Tanaka K, Tennakoon TMDS, Thambugala KM, Tian Q, Tibpromma S, Thongbai B, Vizzini A, Wanasinghe DN, Wijayawardene NN, Wu HX, Yang J, Zeng XY, Zhang H, Zhang JF, Bulgakov TS, Camporesi E, Bahkali AH, Amoozegar MA, Araujo-Neta LS, Ammirati JF, Baghela A, Bhatt RP, Bojantchev D, Buyck B, da Silva GA, de Lima CLF, de Oliveira RJV, de Souza CAF, Dai YC, Dima B, Duong TT, Ercole E, Mafalda-Freire F, Ghosh A, Hashimoto A, Kamolhan S, Kang JC, Karunarathna SC, Kirk PM, Kytövuori I, Lantieri A, Liimatainen K, Liu ZY, Liu XZ, Lücking R, Medardi G, Mortimer PE, Nguyen TTT, Promputtha I, Raj KNA, Reck MA, Lumyong S, Shahzadeh-Fazeli SA, Stadler M, Soudi MR, Su HY, Takahashi T, Tangthirasunun N, Uniyal P, Wang Y, Wen TC, Xu JC, Zhang ZK, Zhao YC, Zhou JL, Zhu L (2016) Fungal diversity notes 367–490: taxonomic and phylogenetic contributions to fungal taxa. Fungal Divers 80:1–270. https://doi.org/10.1007/s13225-016-0373-x

 

Recent Genus

1
Neochlamydotubeufia
Neohelicomyces

Recent Species

Neohelicomyces submersus
Neohelicomyces hyalosporus
Neohelicomyces grandisporus