Fusarium verticillioides
| Fusarium verticillioides | ||||||||||||
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Microscopic picture of the mycelium of F. verticillioides . The picture shows the typical monophialids with spherical, sticking together spores at the ends ("false heads"). |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Fusarium verticillioides | ||||||||||||
| ( Sacc. ) Nirenberg |
Fusarium verticillioides is a species of mold thatbelongs tothe genus Fusarium . The fungi cause ear diseases on cereals and produce harmful mycotoxins in the process . The teleomorph is Gibberella moniliformis .
determination
F. verticillioides forms a white-pink colony on potato dextrose agar (PDA) with a coarse, net-like, cotton-wool pattern that is mostly characteristic of F. verticillioides . The color of the fungal colony ranges from white to pink to purple, but it depends heavily on the nutrient medium. The species of Fusarium can only be determined with certainty with a microscope. F. verticillioides forms chains of microconidia strung together in the mycelium , which, when magnified less, resemble a tangled network of threads. The Mikrokonidienketten grow out Monophialiden that sometimes the species-specific "false head" ( false heads form).
F. verticillioides can easily be confused with Fusarium proliferatum . Macroscopically, the only difference between the two fungi is the slightly finer-grained surface structure of the F. proliferatum . Under the microscope, F. verticillioides stands out from F. proliferatum with slightly larger microconidia , the absence of polyphialides and longer chains of microconidia . Nevertheless, it is not always possible to differentiate them microscopically, and genetic testing ( PCR ) must be used.
swell
- ↑ Leslie, JF, Summerell, BA 2006. The Fusarium Laboratory Manual. Blackwell Publishing, Oxford.
