Fusarium oxysporum
| Authors |
Schltdl. 1824 |
| Strain |
14067 |
| Classification |
Hypocreales, Nectriaceae, Fusarium |
| Culture collection |
BCRC FU31213 |
| Detection frequency |
Low |
| Accession number |
LC499617 |
| Figure |
 Fig. 1 5-day-old colony on PDA  Fig. 2 Fusarium oxysporum. a–d, f. Phialides and conidia. e. Chlamydospores. g. Conidia (Bars= 5 μm, unless otherwise specified) |
| Colonies |
Colonies on PDA attaining 51-mm at 25 °C after 5 days, cottony, elevated, azonate, white, turning pale salmon from the center with age, margin entire, slightly fasciculate, reverse purple with white margin. |
| Sporodochia |
Sporodochia not observed on PDA, CLA, OA, WA. |
| Conidiophores |
Conidiophores macro- or micronematous, mostly reduced to a single basal cell, prostrate. |
| Conidiogenous cells |
Phialides cylindrical or elliptical, tapering towards the apex, hyaline, sometimes with collarette, mostly monophialidic, sometimes polyphialidic, 8–24 × 2.5–3.5 µm. Short adelophialides often present. |
| Conidia |
Macroconidia hyaline, falcate, with a foot-shaped basal cell, (1–)3–5(–7)-septate, 27–41(–65) × 3–4.5 µm. Microconidia hyaline, cylindrical or allantoid, straight or slightly curved, with base slightly truncated, 0(–1)-septate, (4–)6–12 × 2–3 µm |
| Note |
According to the BLAST result of the IGS region, Strain 14067 has 100% identity to some previously published strains: Fusarium oxysporum strain CPC 27196 (LT746234; on Citrus sinensis), Fusarium oxysporum f. sp. mori strain GL1301 (KY515228; on blackberry), Fusarium oxysporum f. sp. cyclaminis strain MIAE01683 (KU128988; Cyclamen persicum), Fusarium oxysporum f. sp. vanillae strain NRRL 26448 (FJ985508; on Vanilla sp.). Even though this strain is linked to formae speciales of “mori”, “cyclaminis”, and “vanillae” by IGS sequence blasts, the pathogenicity of this isolate is uncertain. As IGS sequences of these three formae speciales are identical, it imply that different formae speciales may be represented by same fungus. |
| Pathogenicity |
This species has been reported to cause rice seed rot and seedling blight (Doumen et al., 2018; Ichihara et al., 2019) |
| Specimens examined |
Taiwan, Changhua County, rice grains, May 2014, Jie-Hao Ou, 14067 |
| ITS |
TACAACTCCCAAACCCCTGTGAACATACCACTTGTTGCCTCGGCGGATCAGCCCGCTCCCGGTAAAACGGGACGGCCCGCCAGAGGACCCCTAAACTCTGTTTCTATATGTAACTTCTGAGTAAAACCATAAATAAATCAAAACTTTCAACAACGGATCTCTTGGTTCTGGCATCGATGAAGAACGCAGCAAAATGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACATTGCGCCCGCCAGTATTCTGGCGGGCATGCCTGTTCGAGCGTCATTTCAACCCTCAAGCACAGCTTGGTGTTGGGACTCGCGTTAATTCGCGTTCCCCAAATTGATTGGCGGTCACGTCGAGCTTCCATAGCGTAGTAGTAAAACCCTCGTTACTGGTAATCGTCGCGGCCACGCCGTTAAACCCCAACTTCTGAATGTTGACCTCGGATCAGGTAGGAATACCCGCTGAACTTAA |
| EF1a |
TCGTCGTCATCGGCCACGTCGACTCTGGCAAGTCGACCACTGTGAGTACTCTCCTCGACAATGAGCTTATCTGCCATCGTCAATCCCGACCAAGACCTGGTGGGGTATTTCTCAAAGTCAACATACTGACATCGTTTCACAGACCGGTCACTTGATCTACCAGTGCGGTGGTATCGATAAGCGAACCATCGAGAAGTTCGAGAAGGTTAGTCACTTTCCCTTCGATCGCGCGTCCTTTGCCCATCGATTTCCCCTACGACTCGAAACGTGCCCGCTACCCCGCTCGAGACCAAAAATTTTGCAATATGACTGTAATTTTTTTTGGTGGGGCACTTACCCCGCCACTTGAGCGACGGGAGCGTTTGCCCTCTTAACCATTCTCACAACCTCAATGAGTGCGTCGTCACGTGTCAAGTAGTCACTAACCATTCAACAATAGGAAGCCGCTGAGCTCGGTAAGGGTTCCTTCAAGTACGCCTGGGTTCTTGACAAGCTCAAGGCCGAGCGTGAGCGTGGTATCACCATCGATATTGCTCTCTGGAAGTTCGAGACTCCTCGCTACTATGTCACCGTCATTGGTATGTTGTCGCTCATGCTTCATTCTACTTCTCTTCGTACTAACATCACTCAGACGCTCCCGGTCACCGTGATTTCATCAAGAACATGATCACTGGTACTTCCCAGGCCGAT |
| IGS |
GGGGGTCCAGGGTAAGTCCAGGGTAGGCAGCTTAGATTTGGTCGATCTGGAGGTCGATTCTCCGGCTGGCGGATCTGACACTGTCGAAACGAGATGCGAGCGGTGTAGGGTAGGCTAGTTTCGTCCTCGCCAGGTTGCGATTTGGACGAGATATGTGGTTTAGGGTAGGCTATAGGGTAAGTAGAATTCGAGTTTCGTCGCCGACAGTTTTCTGTGGGTGTATGGTAGGTACAGGGTAGGCAAATCTCTCTCCGGCCAGTACTTGTCTGGTGGTCGTGAGTCGATTTTTTTGTTTTGCCATACTATTGAATTTTGCGGAAATTCAAAAGTGGCTCGGGAGTCCCGCCTGGCGTGCGTCCGACTCGAACATCGTCGGTGTACATATGAGAGGGAGTAATCCGGCCCGGCCGGGGCCCATCGCGAGCTGCCGGGTAGGTAAAAGTAAAAAAGTTGTTAAGAGGCGCGGTGTCGGCGTGCTTGTATTTGCGGGAGAGAATTATCTGGAGGTGCTGGGTAGCCGGGAATACTTGGACGGATCTGGGCCCGGGAATGGGTCTGGGCCTGGATTCTGGTGTGGTGTAGGGTAGGCGTAGATAGATGAGTGGTCTAGGGTAGATACAGGGTAGCCAGACGTCTGGTATATAGTATGGGGGTGTAGGGTAGGTCTGGACACCGTTTTCCACTTCGCCCTTCCCTTTAGTCGAGGGAGGACGATCTTGGCTGGGACGGAGGTGTAGGGTAAGCTTAATTTACGATTACATGATCTGT |