Hello, I isolate different fungi from soil, one of them can change colour of PDA to orange. Does anyone know why?
Thanks you in advice
Merry christmas and happy new year :)
M. Carmen
Hi, Maria,
May I know what species of fungi did you isolate from soil? It is possible that the change in color of PDA is the pigment produced by the fungi.
Hope this helps.
Best,
Arizaldo
Hi dear Maria
The isolate of fungus feeds from the Glucose on PDA medium and produces secondary metabolites so that because of medium changing color. for example, some of Fusarium species can do this reaction on PDA medium.
Merry christmas and happy new year
Hola Maria,
Fungi in general and particularly filamentous fungi are potential sources of carotenoid pigments such as β-carotene, lycopene, and other specific pigmented polyketide molecules, such as Monascus and Monascus-like azaphilones (the latter are unique). In the majority of cases, these are secondary metabolites with biological activity. Many times, the production of the main metabolite of a given microorganism is correlated with another, colored metabolite.
So, you can determine the metabolite profile of your fungus in these bothe directions: main metabolite + colored metabolite.
Good luck!
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