Tubeufiales » Tubeufiaceae

Chlamydotubeufia

Chlamydotubeufia Boonmee & K.D. Hyde

Index Fungorum: IF 563500

 

Saprobic on decaying wood. Sexual morph: Ascomata superficial, solitary or scattered, globose to subglobose, dark brown to black, setose, coriaceous, with a central ostiole. Ostiole single, central. Setae covering the whole ascoma, dark brown to black, taper to an acute apex, unbranched, thick-walled. Peridium composed of several layers of cells of textura angularis. Hamathecium of branched pseudoparaphyses. Asci 8-spored, bitunicate, fissitunicate, cylindrical to clavate, saccate, apically rounded, short pedicellate. Ascospores 2–3-seriate fusiform, straight to slightly curved, tapering toward the ends, guttulate, multi-septate, not constricted at the septa, hyaline to pale brown. Asexual morph: Hyphomycetous, chlamydosporous or helicosporous. Conidiophores lacking. Chlamydospores holoblastic, broadly oval to ellipsoid, dictyoseptate, pale brown when immature, darkened to black when matured, with terminal cells round and subhyaline. Helicosporous asexual morph found from chlamydosporous cultures (Shearer 1987): Conidiophores macronematous, mononematous, erect, cylindrical, unbranched, 0–3-septate, arising as lateral branches from creeping hyphae, hyaline to pale brown, smooth-walled. Conidiogenous cells holoblastic, mono- to polyblastic, integrated, sympodial, terminal, cylindrical, with denticles, hyaline to pale brown, smooth-walled. Conidia solitary, acrogenous, helicoid, circinate, non-hygroscopic, with U-shaped basal cell, rounded at end, 2–6-septate, slightly constricted at septa, coiled 1¼–1¾ times, hyaline, smooth-walled. (Description from Lu et al. 2017)

 

Type species: Chlamydotubeufia huaikangplaensis Boonmee & K.D. Hyde, Fungal Diversity 51(1): 78 (2011)

 

Notes: Chlamydotubeufia has globose ascomata, a helicosporous asexual morph and dictyochlamydospores (Boonmee et al. 2011). Eight epithets are listed in Index Fungorum (2020). Lu et al. (2018) excluded three and accepted five species in Chlamydotubeufia based on multigene phylogenetic analysis. Four species are reported from freshwater habitats, and all have a holomorph (Hyde et al. 2017; Lu et al. 2018), except C. chlamydospora (Shearer) Boonmee & K.D. Hyde (Shearer 1987).

 

List of freshwater Chlamydotubeufia species

Chlamydotubeufia chlamydospora (Shearer) Boonmee & K.D. Hyde [as ‘chlamydosporum’], Fungal Diversity 51(1): 83 (2011)

Basionym: Helicoma chlamydosporum Shearer, Mycologia 79(3): 468 (1987)

Freshwater distribution: Panama (Shearer 1987)

 

Chlamydotubeufia cylindrica Y.Z. Lu, Boonmee & K.D. Hyde, Fungal Diversity 92: 155 (2018)

Freshwater distribution: Thailand (Lu et al. 2018b)

 

Chlamydotubeufia huaikangplaensis Boonmee & K.D. Hyde, Fungal Diversity 51(1): 78 (2011)

Freshwater distribution: Thailand (Hyde et al. 2017)

 

Chlamydotubeufia krabiensis Y.Z. Lu, Boonmee & K.D. Hyde, Fungal Diversity 87: 116 (2017)

Freshwater distribution: Thailand (Hyde et al. 2017)

 

Key to freshwater Chlamydotubeufia species

1. Asexual morph................................................................... C. chlamydospora

1. Holomorph................................................................................................. 2

2. Asci < 90 μm long........................................................... C. huaikangplaensis

2. Asci > 90 μm long....................................................................................... 3

3. Asci 90–145 × 14–16 μm............................................................ C. krabiensis

3. Asci 90–110 × 15–18 μm............................................................. C. cylindrica

 

References

Boonmee S, Zhang Y, Chomnunti P, Chukeatirote E, Tsui CKM, Bahkali AH, Hyde KD (2011) Revision of lignicolous Tubeufiaceae based on morphological reexamination and phylogenetic analysis. Fungal Divers 51:63–102. https://doi.org/10.1007/s13225-011-0147-4

Hyde KD, Norphanphoun C, Abreu VP, Bazzicalupo A, Thilini Chethana KW, Clericuzio M, Dayarathne MC, Dissanayake AJ, Ekanayaka AH, He MQ, Hongsanan S, Huang SK, Jayasiri SC, Jayawardena RS, Karunarathna A, Konta S, Kušan I, Lee H, Li J, Lin CG, Liu NG, Lu YZ, Luo ZL, Manawasinghe IS, Mapook A, Perera RH, Phookamsak R, Phukhamsakda C, Siedlecki I, Soares AM, Tennakoon DS, Tian Q, Tibpromma S, Wanasinghe DN, Xiao YP, Yang J, Zeng XY, Abdel-Aziz FA, Li WJ, Senanayake IC, Shang QJ, Daranagama DA, de Silva NI, Thambugala KM, Abdel-Wahab MA, Bahkali AH, Berbee ML, Boonmee S, Bhat DJ, Bulgakov TS, Buyck B, Camporesi E, Castañeda-Ruiz RF, Chomnunti P, Doilom M, Dovana F, Gibertoni TB, Jadan M, Jeewon R, Jones EBG, Kang JC, Karunarathna SC, Lim YW, Liu JK, Liu ZY, Plautz HL, Lumyong S, Maharachchikumbura SSN, Matočec N, McKenzie EHC, Mešić A, Miller D, Pawłowska J, Pereira OL, Promputtha I, Romero AI, Ryvarden L, Su HY, Suetrong S, Tkalčec Z, Vizzini A, Wen TC, Wisitrassameewong K, Wrzosek M, Xu JC, Zhao Q, Zhao RL, Mortimer PE (2017) Fungal diversity notes 603–708: taxonomic and phylogenetic notes on genera and species. Fungal Divers 87:1–235. https://doi.org/10.1007/s13225-017-0391-3

Lu YZ, Liu JK (Jack), Hyde KD, Jeewon R, Kang JC, Fan C, Boonmee S, Bhat DJ, Luo ZL, Lin CG, Eungwanichayapant PD (2018) A taxonomic reassessment of Tubeufiales based on multi-locus phylogeny and morphology. Fungal Divers 92:131–344. https://doi.org/10.1007/s13225-018-0411-y

Shearer CA (1987) Helicoma chlamydosporum, a new hyphomycete from submerged wood in Panama. Mycologia 79:468–472. https://doi.org/10.1080/00275514.1987.12025408

 

Recent Genus

1
Neochlamydotubeufia
Neohelicomyces

Recent Species

Neohelicomyces submersus
Neohelicomyces hyalosporus
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