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Potato Dextrose Agar (PDA) and Potato
dextrose Broth (PDB) broth are excellent media for the detection
of Fusaria species.
The medium is made of glucose and potato
extract and eventually supplemented with agar.
Potato extract is a mixture of potato
proteins, manufactured by controlled enzymatic hydrolysis. The
extract is an excellent nitrogen source for Fusarium species and
many other fungi, yeasts and prokaryotes and contains vitamins
and minerals as well.
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In order to inhibit bacterial growth the
medium may be acidified to pH 3.5 by adding tartaric acid,
lactic acid or some other organic acid. The medium must not be
heated after the addition of the acid, this will result in the
hydrolysis of the agar and destroy its gelling properties.
For technical data please click
here. |
