Gibberella fujikuroi
Microscopic image of the mycelium of F. verticillioides. Visible in the image are the species-specific Monophialiden with spherical spores stuck together at the ends ( "wrong head ").
Fusarium verticillioides is a Schimmelpilzart, belonging to the genus Fusarium. The fungi cause among other ear diseases on cereals while producing harmful mycotoxins.
Determination
F. verticillioides is on potato dextrose agar medium ( potato dextrose agarose, PDA), a white- pink colony with a verticillioides mostly for F. characteristic coarse reticulate pattern wattigem. The color of the fungal colony moves from white to pink to purple, however, is strongly dependent on the growth medium. The Fusarienart is safe only be determined with a microscope. F. verticillioides mycelium forms in chains of aligned microconidia, which resemble a tangled network of strings with less high magnifications. The Mikrokonidienketten grow from Monophialiden, sometimes also form the species-typical "false head " (false heads ).
F. verticillioides can easily be confused with Fusarium proliferatum. Macroscopically, the two fungi differ proliferatum only by the somewhat finer-grained surface structure of F.. Microscopically, F. verticillioides lifts by slightly larger microconidia, the lack of Polyphialiden and longer Mikrokonidienketten of F. proliferatum from. Nevertheless, the distinction is not always possible microscopic, and genetic studies (PCR ) must be consulted.