Holotype:
THAILAND, Chiang Mai, The Mushroom Research Centre, 18 Jul. 2015, Xiao YP, holotype MFLU 18–0658.
Habitat:
Buried in soil.
Host:
On larva of Elateridae (Coleoptera)
Description:
Primary synnema 9–18 cm high 1–2 mm diam, arising from the head region of the larva, branching into 2–5, cylindrical, brown to deep brown, with small white fertile head on the top, not smooth Fertile head 500–2000 µm long, 400–1000 µm diam, globose to subglobose, capitulum, white to brown, arising from the apical end of primary synnema, mess of sporangium on the surface. Sporangium 78–121 µm diam spherical, arising from the apical end of primary synnema, white colour when immature, becoming brown to dark brown after maturity, consisting of thick-walled cells. Secondary synnemata 1092–1937 × 21–34 µm, laterally from the primary synnema, brown to white, cylindrical, not smooth. Hyphae 1.8–2.8 µm wide, irregularly multi-septate, brown, cylindrical, smooth or rough, sometimes particularly expand. Phialides 25–40 × 1.3–2.5 µm, hirsutella-like, hyaline, solitary, unbranched, narrow slender, smooth. Conidia 6.7–9.8 × 2.5–3.8 µm, 1 cell, hyaline, subglobose to reniform, bound in mucilaginous spheres. Mucilaginous spheres 10.5–12.9 × 6.4–8.7 µm, composed of 1–12 conidia, hyaline, at phialide apex.
Culture characteristics:
Colonies on PDA attaining a diam 2 cm diam in 4 wk, with circular, dense mycelium on the surface. After 6 wk, the colour of the colony gradually deepened from white to dark brown from the periphery to the centre, with complex fold as 4 circle rings, reverse white to yellow in colour, with ring. Synnemata was produced after 8 weeks. Most of the characters are the same as the fresh collection except phialides and mucilaginous spheres. Phialides 56–86 µm long, 3–5 µm wide at base, 1.4–2.2 µm at top, hirsutella-like, hyaline, solitary, unbranched, narrow slender, smooth, 1–4 septa, not observed on host. Mucilaginous spheres 10.5–15.9 × 8.2–14.7 µm, 1–4 conidia, hyaline to brown.
Reference:
Xiao YP, Hongsanan S , Hyde KD, et al. (2019) Two new entomopathogenic species of Ophiocordyceps in Thailand. MycoKeys47: 53–74.
DOI: https://doi.org/10.3897/mycokeys.47.29898Species |
Strain |
Compound |
Pubchem CID |
Biological activity |
Reference |
|---|
|
Strain |
MH725817 | MH725818 |
|---|---|---|
| MFLU 18-0658 | MH725813 | - |
| MFLUCC 18-0492 | - | MH725814 |