| Authors | Al-Hatmi, Sand.-Den., S.A. Ahmed & de Hoog 2019 |
|---|---|
| Strain | 17037 |
| Classification | Hypocreales, Nectriaceae, Fusarium |
| Culture collection | processing |
| Detection frequency | Low |
| Figure |  Fig. 1 5-day-old colony on PDA  Fig. 2 Fusarium volatile. a, b, f. Conidiophores, conidiogenous cells and conidia. c. Conidia. d. Microconidiation. e. Sporodochia on CLA. g. Aerial conidiophores on SNA. (Bars= 5 μm, unless otherwise specified) |
| Colonies | Colonies on PDA attaining 78-mm at 25 °C after 5 days, sparsely cottony, light violet at the center, paler toward the edge, reverse salmon, dark violet near the center. |
| Conidiophores | Conidiophores macro- or micronematous, erect or prostrate, hyaline, mostly simple or sometimes with a few branches. |
| Conidiogenous cells | Phialides cylindrical, tapering towards the apex, hyaline, mostly monophialidic, 11–25(–40) × 2–3.5 µm. Adelophialides often present. |
| Conidia | Macroconidia hyaline, falcate, with a foot-shaped basal cell, 1–3-septate, produced by prostrate phialides; 1-septate conidia 18–30 × 2.5–3.5 µm; 2-septate conidia 28–40 × 3–4 µm;
3-septate conidia 30–45 × 3–4 µm. Microconidia hyaline, cylindrical to obovoid, straight or slightly curved, aseptate, in chains (up to 10) or false head, (4–)5–8(–12) × 1.5–2.5(–3) µm |
| Note | This species was recently proposed by Al-Hatmi et al. (2019) for the fungus causing human respiratory disease. It is interesting to find this fungus on rice grain. The nature reservoir of this species merits further investigation. Strain 17037 shares 99.29% identity in EF1a region with the ex-type strain of Fusarium volatile (CBS 143874, LR596007). Fusarium volatile is morphologically similar to F. fujikuroi in having catenulate microconidia and conidiophores with few branches. Al-Hatmi et al. (2019) reported the rare presence of polyphialides, a feature which was not observed in Strain 17037. |
| Pathogenicity | Unknown |
| Specimens examined | Taiwan, Taichung City, rice grains, Feb 2017, Jie-Hao Ou, 17037 |
| ITS | CCCAAACCCCTGTGAACATACCAATTGTTGCCTCGGCGGATCAGCCCGCTCCCGGTAAAACGGGACGGCCCGCCAGAGGACCCCTAAACTCTGTTTCTATATGTAACTTCTGAGTAAAACCATAAATAAATCAAAACTTTCAACAACGGATCTCTTGGTTCTGGCATCGATGAAGAACGCAGCAAAATGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACATTGCGCCCGCCAGTATTCTGGCGGGCATGCCTGTTCGAGCGTCATTTCAACCCTCAAGCTCAGCTTGGTGTTGGGACTCGCGAGTCAAATCGCGTTCCCCAAATTGATTGGCGGTCACGTCGAGCTTCCATAGCGTAGTAGTAAAACCCTCGTTACTGGTAATCGTCGCGGCCACGCCGTTAAACCCCAACTTCTGAATGTTGACCTCGGATCAGGTAGGAATACCCGCTGAACTTAA |
| EF1a | GACCACTGTGAGTACTACCCTTCACGATGAGCTTATCGGCCATTGTAATCCTGGCCAAGACCTTGCGGGGTACTTGTCAAAAGAAAACATGCTGACTTCGCTTCACAGACCGGTCACTTGATCTACCAGTGCGGTGGTATCGACAAGCGAACCATCGAGAAGTTCGAGAAGGTTAGTCACACTCCCTTCGATCGCGCGTCCTTTGTCCATCGATTTCTCCCTACGACTCGAAACGTGCCCGCTACCCCGCTCGAGCCCAAAAATTTTGCGATACGACCGTAATTTTTTTTGGTGGGGCATTTACCCCGCCACTCGAGCGCGTTTTTTGCCCTCTTTTATTCCACAACCTCATTGAGTGCATCGTCACGTGTCAAACAGTCACTAACCATCCGACAATAGGAAGCCGCTGAGCTCGGTAAGGGTTCCTTCAAGTACGCCTGGGTTCTTGACAAGCTCAAGGCCGAGCGTGAGCGTGGTATCACCATCGATATTGCTCTCTGGAAGTTCGAGACTCCTCGCTACTATGTCACCGTCATTGGTATGTTGTCGCTCTTGCTCCGTTC |