Achroiostachys aurantispora

Authors L. Lombard & Crous 2016
Strain 18039
Classification Hypocreales, Stachybotryaceae, Achroiostachys
Culture collection BCRC FU31217
Detection frequency Low
Accession number LC499622
Figure Fig. 1 5-day-old colony on PDA Fig. 2 Achroiostachys aurantispora. a–c. Conidiophores and conidia. d. Conidia. (Bars= 5 μm, unless otherwise specified)
Colonies Colonies on PDA attaining 54-mm diam. after 5 days at 25 °C, wooly, azonate, white to pale orange, reverse pale orange.
Conidiophores Conidiophores macronematous, hyaline, erect, unbranched, 1–2-septate, smooth or slightly verrucose, 70–110 μm long, 2.5–4.0 μm wide at the base, bearing a whorl of 3–9 conidiogenous cells.
Conidiogenous cells Conidiogenous cells hyaline, clavate, smooth, 10–14 × 3.5–5.0 μm.
Conidia Conidia hyaline, pale orange in mass, one-celled, ovoid to ellipsoidal, mostly biguttulate, 7.5–10 × 3.5–4.5 μm.
Note The length of conidia in strain 18039 (8–10 μm with avg. 9 μm) is slightly longer than the original description ((7–)7.5–8.5(–10) with av. 8 μm) (Lombard et al. 2016) of this species. Strain 18039 shares 100% identity in ITS region with the ex-type strain of Achroiostachys aurantispora (DAOM 225565, KU845804) which was originally isolated from straw.
Pathogenicity Unknown
Specimens examined Taiwan, Changhua County, rice grains (cultivar Tainan 11), Jul 2018, Jie-Hao Ou, 18039
ITS CATTACCGAGTTTACAACTCCCAAACCCAATGTGAACATACCTCCAGTTGCTTCGGCGGGAACGCCCCGGCCCAGCCCGGAACCAGGCGCCCGCCGGAGGTACCCAAACTCTTGTCTTCAGTATCTTACTCTGAGTGGCAAACGCAAAATAAATCAAAACTTTCAACAACGGATCTCTTGGCTCTGGCATCGATGAAGAACGCAGCGAAATGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACATTGCGCCCGCCAGCACTCTGGCGGGCATGCCTGTCCGAGCGTCATTTCAACCCTCAGGCCCCCTCGGGGGACTGGTGTTGGGGATCGGCCCGCCCTGGCGCGGCGCCGTCCCCGAAATACAGTGGCGGTCTCGCTGCAGCCTCCCCTGCGTAGTAGCACACCTCGCATCGGAGAGCGGCGCGGCCACGCCGTGAAACCCCAACTTCTGATAGTTGACCTCGGATCAGGTAGGAATACCCGCTGAACTTAA