Genus/species (aliases): Fusarium sp.
Classification: Ascomycete
Morphology:
- Cell: Dependent on species
- Colony: Dependent on species
- Spore: In F. oxysporum, there are three types of spores: microconidia, macroconidia, and chlamydospores
- Zygote: Asexual
- Ascus:
- Liquid Growth:
Ecological Traits:
Found in many different agricultural sites, notably vineyards. Also found in the bark of cork oaks.
Distinguishing Features:
Filamentous, other features depend on species
Role in wine:
Fusarium species can be found on the surface of grapes; no role in winemaking.
Fusarium oxysporum is known as fusarium wilt.
Fusarium oxysporum has also been shown to be a high producer of 2,4,6-Trichloroanisole.
Sensitivities:
- SO2: Sensitive
- Sorbate
- DMDC
- pH
- Acid
- Ethanol
- Anaerobiosis: intolerant
- Heat: Sensitive
References:
- Álvarez-Rodríguez, M.L., L. López-Ocaña, J.M. López-Coronado, E. Rodríguez, M.J. Martínez, G. Larriba, J.J.R. Coque. 2002. Cork Taint of Wines: Role of the Filamentous Fungi Isolated from Cork in the Formation of 2,4,6-Trichloroanisole by O Methylation of 2,4,6-Trichlorophenol. Appl. Environ. Microbiol. 68(12): 5860–5869.
- Falks, S.P., R.C. Pearson, D.M. Gadoury, R.C. Seem, A. Sztejnberg. Fusarium proliferatum as a biocontrol agent against grape downy mildew. 1996. Phytopathology.
- Omer, A.D., J. Granett, R.J. Wakeman. 1999. Pathogenicity of Fusarium oxysporum on Different Vitis Rootstocks. J. Phytopathology. 147:433-436.