Distoseptisporales genera incertae sedis » Distoseptisporales genera incertae sedis » Aquapteridospora

Aquapteridospora lignicola

Aquapteridospora lignicola Yang et al.

 

Index Fungorum Number: IF551732                                          Facesoffungi number: FoF 01641
Etymology: From lignicola meaning “dwelling on wood”
Holytype: MFLU 15-1172

Saprobic on decaying plant substrates. Asexual morph: Colonies on the natural substrate effuse, hairy, dark brown. Mycelium superficial or partly immersed, composed of branched, septate, pale brown to brown, smooth, thin-walled hyphae. Conidiophores 70–200 ´ 4–7 μm (x̄  = 146 ´ 6 µm, n = 20), macronematous, mononematous, solitary, erect, straight or slightly flexuous, unbranched, cylindrical, septate, smooth, thick-walled, dark brown at the base, paler towards apex. Conidiogenous cells polyblastic, terminal, becoming intercalary, pale brown, integrated, with several sympodial proliferations, bearing tiny, protuberant, circular scars. Conidia solitary, fusiform, smooth, obtuse at both ends, 3-euseptate, slightly constricted at septa, with pale to dark brown central cells and subhyaline end cells, guttulate, acropleurogenous, sometimes with a conspicuous sheath, 15–24 ´ 6–8 μm (x̄  = 21 ´ 7 µm, n = 45). Conidial secession schizolytic. Sexual morph: Undetermined.

Culture characters: Conidia germinating on PDA within 24 h and germ tubes produced from both ends. Colony on MEA slow-growing, reaching 5–10 mm diam. at 14 days, with dense white mycelium on surface, in the center becoming sparse and dark brown at the edge; in reverse with a white middle and dark brown, smooth margin. After 2 months of incubation, the colony on MEA contained only superficial, branched, septate, smooth, mycelia and produced the asexual morph.

Distribution: THAILAND, Chiang Rai Province, stream flowing in Tham Luang Nang Non Cave, on submerged wood (Yang et al. 2015)

Fig. 1. Aquapteridospora lignicola (MFLU 15-1172, holotype). a. Substrate. b-c. Colony on wood. d-e,g. Conidia on conidiophores. f, h. Conidiophores. i-k. Apices of the conidiophores showing the conidiogenous cells and developing conidia. l-s. Conidia, some with mucilaginous sheath. t. Germinated conidium. u-v. Cultures on MEA, u from above, v from below. Scale bars: b = 200 μm, c = 50 μm, d,g-h, t = 30 μm, e-f = 40 μm, i = 15 μm, j-s = 10 μm. (Yang et al. 2015)

 

References

Luo ZL, Hyde KD, Liu JK, Maharachchikumbura SSN et al. 2019 – Freshwater Sordariomycetes. Fungal Diversity 99, 451–660.

Yang J, Maharachchikumbura SSN, Hyde KD, Bhat DJ, McKenzie EHC, Bahkali AH, Jones EBG, Liu ZY (2015). Aquapteridospora lignicola gen. et sp. nov., a new hyphomycetous taxon (Sordariomycetes) from wood submerged in a freshwater stream. Cryptog Mycol 36:469–478.

 

 

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