Ophiocordyceps cylindrospora
Ophiocordyceps cylindrospora Y.P. Xiao, T.C. Wen & K.D. Hyde, in Hyde et al., Mycosphere 9(2): 391 (2018)
Index Fungorum Number – IF553983; Facesoffungi Number: FoF 03878
Parasitic on wasps (Hymenoptera), collected from the underside of leaves litter. Sexual morph: Host 11 mm long, 3–5 mm wide, black wasp without hyphae on the surface. Stromata 50–90 mm long, 0.5–1.5 mm diam, mostly single, stipitate, rarely double, arising from between the head and thorax of adult wasps, pale yellow to yellow. Stipe 25–27 mm long, 0.5–2 mm diam, clavate, with a fertile apex, becoming pale to yellow. Fertile head 3–3.2 mm wide, 1–1.2 mm diam, fusiform, yellow, upper surface roughened, lateral surface, ridged and furrowed. Ascomata 551–638 × 261–327 μm (x̄ = 594 × 294 µm, n = 30), immersed, oblique flask-shaped, thin-walled. Peridium 20–25 mm (x̄ = 23 µm, n = 60) wide. Asci 248–313 × 5–7 μm (x̄ = 480 × 6 µm, n = 60), 8-spored, hyaline, narrow cylindrical, with a thickened apex. Apical cap 5–12.5 × 8.5–10.4 μm (x̄ = 8.7 × 9.5 µm, n = 60) thick, with a small channel in the center. Ascospores easily breaking into part-spores, filiform. Secondary ascospores 3.1–3.9 × 1.6–2 μm (x̄ = 3.5 × 1.8 µm, n = 90) cylindrical, truncated at both ends, straight, hyaline, smooth. Asexual morph: undetermined. (Hyde et al. 2018)
Known hosts and distribution: on dead wasp (Chiang Mai, Thailand) (Hyde et al. 2018).
Sequence data: MFLU 17-1961 (SSU = MG553651, LSU = MG553652, ITS = MG553635, RPB2 = MG647029) (Hyde et al. 2018).
Ophiocordyceps cylindrospora (Material examined – Thailand, Chiang Mai, MRC. On dead wasp, 19 July 2015, YuanPin Xiao, MSCM15071905 (MFLU 17-1961, holotype)). a Habitat of Ophiocordyceps cylindrospora. b Ascostroma emerging from infected wasps. c Overview of host. d Fertile head of ascostroma. g Ascomata. h, i Peridium. j-m Immature to mature asci. n Apical cap of asci. o-q Secondary ascospores. r Germinated secondary sacospores. Scale Bars: d, e = 500 µm, f = 200 µm, g = 20 µm, h–k = 100 µm, l = 10 µm, m, n = 2 µm.
Phylogram of Ophiocordyceps cylindrospora generated from Maximum likelihood analysis of ITS, SSU, LSU and RPB2 sequence data. Tolypocladium inflatum (OSC 71235) and Tolypocladium ophioglossoides (NBRC 106332) were used as outgroup taxon. Tree topology of the ML analysis was similar to the ML and BI. The new species was in red.
References:
Hyde KD, Chaiwan N, Norphanphoun C, Boonmee S, Camporesi E, Chethana KW et al. 2018 Mycosphere notes 169–224. Mycosphere 9(2): 271–430. Doi 10.5943/mycosphere/9/2/8