Ascomycota, Pezizomycotina, Hypocreales, Nectriaceae. Genus: FUSARIUM
Fusarium delphinoides Schroers et al.
Common synonyms
Bisifusarium delphinoides (Schroers et al.) Lombard & Crous
Colony characteristics
Colonies (CzA, 7 d, 24°C) attaining 40-60 mm diam, colonies (SNA, 7 d, 24°C) attaining 37-45 mm diam, with scant aerial mycelium, white to pale orange due to conidiation. Colony reverse on PDA with irregular reddish-brown spots.
Microscopy
On SNA, hyphae hyaline with lateral phialidic pegs 1-2(-4) µm long. Monophialides along undifferentiated hyphae, 8-25 µm long, 2.0-2.5 µm wide at base, gradually tapering towards the tip. sometimes arranged in sporodochia. Polyphialides absent. Microconidia one-celled, ellipsoidal to allantoid, 4.5-9.5 × 2-4 µm. Macroconidia slightly curved at the base, widest in the upper part, mostly with 2 septa, 15-23 × 2.5-4.5 µm, formed in sporodochia. Chlamydospores in short chains in hyphae or terminal. Sexual state unknown.
Pathogenicity
RG-1, BSL-1. Park et al. (2019) described an infection of a burn wound in an elderly diabetic patient. Schroers et al. (2009) listed several strains from human eyes.
One Health
Saprobic species on rotten plant material (Schroers et al., 2009).
References
Nomenclature
Fusarium delphinoides Schroers, Summerbell, O’Donnell & Lamprecht, in Schroers, O’Donnell, Lamprecht, Kammeyer, Johnson, Sutton, Rinaldi, Geiser & Summerbell – Mycologia 101: 57, 2009 ≡ Bisifusarium delphinoides (Schroers, Summerbell, O’Donnell & Lamprecht) Lombard & Crous, in Lombard, van der Merwe, Groenewald & Crous – Stud. Mycol. 80: 224, 2015; type strain: CBS 120718 = NRRL 53290.
