Holotype:
THAILAND, Krabi Province, Mueang Krabi District, 23 Sep. 2013, J. Techaprasan, holotype BBH 40787, ex-type living culture BCC 68582.
Habitat:
Underside of bamboo leaves.
Host:
Scale insect nymphs (Hemiptera).
Description:
Stromata yellowish orange, flattened pulvinate, 2-3.5 mm diam, covered by conidial masses. Conidiomata sporodochial. Phialides yellowish-orange because of pigmented vacuoles, smooth-walled, variable in shape, cylindrical to fusoid, 15-33 μm long, basal part 13-31 × 4-9 μm, helical necks 2-6 μm long, 1.5 μm wide. Conidial masses yellow orange. Conidia cylindrical, 1- or 2-septate, smooth-walled, 9-20 × 2.5-5 μm.
Culture characteristics:
Colonies on PDA slow-growing, attaining a diam of 0.5 cm diam in 4 wk, consisting of densely packed, partly submerged and somewhat stromatic cells and a felt-like aerial mycelium. Phialides (hirsutella-like) emerging laterally from hyphae, entire phialide 10–15 × 3–5, helical necks present, up to 5 μm long. Conidial masses orange yellow. Conidia cylindrical, 1- or 2-septate, smooth-walled, 8–15 × 2–4 μm.
Reference:
Luangsa-ard JJ, Mongkolsamrit S, Noisripoom W, et al. (2017). Helicocollum, a new clavicipitalean genus pathogenic to scale insects (Hemiptera) in Thailand. Mycological Progress 16: 419–431.
DOI: https://doi.org/10.1007/s11557-017-1283-3Species |
Strain |
Compound |
Pubchem CID |
Biological activity |
Reference |
|---|
|
Strain |
LSU | RPB1 | TEF1 |
|---|---|---|---|
| BCC 68582 | KT222331 | KT222338 | |
| BCC 68583 | KT222332 | KT222339 | |
| BCC 71372 | KT222325 | KT222333 | KT222340 |
| BCC 71373 | KT222326 | KT222334 | KT222341 |
| BCC 71374 | KT222327 | KT222335 | KT222342 |