Tubeufiales » Tubeufiaceae

Neochlamydotubeufia

Neochlamydotubeufia Y.Z. Lu, Boonmee & K.D. Hyde

Index Fungorum number: IF 554861; Facesoffungi number: FoF 04731

 

Saprobic on decaying wood in freshwater or terrestrial habitats. 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 branched, hyaline 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. Chlamydospores holoblastic, broadly oval to ellipsoid, dictyoseptate, pale brown when immature, darkened to black when matured, with terminal cells round and pale brown. (Description from Lu et al. 2018)

 

Type species: Neochlamydotubeufia fusiformis Y.Z. Lu, Boonmee & K.D. Hyde

 

Notes: Neochlamydotubeufia was introduced with sexual and asexual morphs which are characterized by superficial ascomata with tapering, unbranched, thick-walled setae and fusiform, multi-septate, hyaline to pale brown ascospores and broadly oval to ellipsoid chlamydospores (Lu et al. 2018). These characters are similar to Chlamydotubeufia and Dictyospora, but phylogeny separates them as different genera (Boonmee et al. 2011; Brahmanage et al. 2017; Lu et al. 2018). The sexual and asexual morphs of N. fusiformis were separately collected from natural submerged wood and linked with molecular evidence (Lu et al. 2018). Neochlamydotubeufia khunkornensis (Boonmee & K.D. Hyde) Y.Z. Lu was collected from dead wood in terrestrial habitats and formed asexual morph in MEA (Boonmee et al. 2011). Lu et al. (2018) found chlamydospores of N. khunkornensis from submerged wood. Neochlamydotubeufia fusiformis has smaller ascomata than N. khunkornensis and they are separated by molecular data (Lu et al. 2018).

 

List of freshwater Neochlamydotubeufia species

Neochlamydotubeufia fusiformis Y.Z. Lu, Boonmee & K.D. Hyde, Fungal Diversity 92: 221 (2018)

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

Neochlamydotubeufia khunkornensis (Boonmee & K.D. Hyde) Y.Z. Lu, Fungal Diversity 92: 222 (2018)

Basionym: Chlamydotubeufia khunkornensis Boonmee & K.D. Hyde, Fungal Diversity 51(1): 80 (2011)

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

 

Key to freshwater Neochlamydotubeufia species

1. Ascomata 140–180 × 140–170 μm                                               N. fusiformis

1. Ascomata 180–250 × 200–250 μm                                        N. khunkornensis

 

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

Brahmanage RS, Lu YZ, Bhat DJ, Wanasinghe DN, Yan JY, Hyde KD, Boonmee S (2017) Phylogenetic investigations on freshwater fungi in Tubeufiaceae (Tubeufiales) reveals the new genus Dictyospora and new species Chlamydotubeufia aquatica and Helicosporium flavum. Mycosphere 8:917–933. https://doi.org/10.5943/MYCOSPHERE/8/7/8

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

 

Recent Genus

1
Neochlamydotubeufia
Neohelicomyces

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