Pleosporales » Massarinaceae » Vaginatispora

Vaginatispora armatispora

Vaginatispora armatispora (K.D. Hyde, Vrijmoed, Chinnaraj & E.B.G. Jones) Wanas., E.B.G. Jones & K.D. Hyde

Index Fungorum number: IF550146         Facesoffungi number: FoF05060



Sexual morph: Ascomata 325–370 μm diam. 300–340 μm high, (x̄ = 350 × 317 μm, n = 10), scattered, usally immersed or semi-immersed, globose to subglobose, black. Ostiole black, crest-like, central, filled with brown cells. Peridium 20–32 μm wide, 2–3 layers, composed of dark brown to hyaline, thick-walled cells of textura porrecta at side and textura angularis at the base. Hamathecium comprising 2– 3 μm wide, septate, hyaline, pseudoparaphyses composing situated between and above the asci, embedded in a gelatinous matrix. Asci 94–118 × 15–17 μm (x̄ = 106 × 16 μm, n = 20), 8-spored, bitunicate, fissitu- nicate, cylindrical-clavate, short pedicellate, apically rounded with an ocular chamber, hyaline to subhyaline. Ascospores 29–34 × 7–9 μm (x̄ = 32 × 8 μm, n = 30), fusiform, hyaline to pale brown, smooth-walled, 1-septate, constricted at the septum, tapering to pointed apices, dis- tinct large guttules in each cells, with distinct hyaline appendages, surrounded by a narrow mucilaginous sheath or not. Asexual morph: Undetermined.


Culture characteristics: Ascospores germinating on PDA within 24 h. Colonies on MEA at room temperature reaching 3 cm diam. in three weeks, mycelium pale brown at first, grayish brown after 3 weeks, composed pale brown to brown, septate, smooth hyphae.


Material examined: Thailand, Prachuap Khiri Khan Province, Bang Saphan District, Sai Khu Waterfall, on submerged decaying wood, August 2017, V. Kumar, site1–4–1, (MFLU 18–1229), living culture (MFLUCC 18–0247).


GenBank Accession No: ITS: MK085056, LSU: MK085060, RPB2: MK087669, SSU: MK085058, TEF1: MK087658.


Notes: The strain MFLUCC 18–0247 that was isolated and described in this study, phylogenetically clustered together with Vaginatispora armatispora (HKUCC 1562) (Wanasinghe et al. 2016) with high support. On the other hand, these two V. armatispora strains (MFLUCC 18-0247 and HKUCC 1562) have only one base pair difference in the ITS1 region. These two isolates are quite similar, but isolate MFLUCC 18–0247 has a thicker peridium than that of HKUCC 1562. Based on such insignificant differences in morphology and molecular data, we consider the isolate (MFLUCC 18–0247) and V. armatispora are conspecific. Vaginatispora armatispora can be distinguished from other members in Vaginatispora because it has pale brown ascospores.

Figure X. Vaginatispora armatispora (MFLU 18-1229, new record). a Ascomata on submerged wood. b Section of ascoma. c–e Section of peridium. f Pseudoparaphyses. g–j Asci. k–m Ascospores. n Germinating ascospore. o, p Culture on PDA. Scale bars: b = 100μm, c–e, g–n = 20μm, f = 10μm.


Reference: Hyde KD, Tennakoon DS, Jeewon R, Bhat DJ, et al. (2019) Fungal diversity notes 1036–1150: taxonomic and phylogenetic contributions on genera and species of fungal taxa. Fungal Diversity 96(1): 1242.





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"The future of specialist fungi in a changing climate: baseline data for generalist and specialist fungi associated with ants Rhododendron species and Dracaena species"

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