Potato dextrose agar
![A. niger growing in potato dextrose agar.](/Images/godic/202502/04/Aniger_pda3811.jpg")
Potato dextrose agar (BAM Media M127) and potato dextrose broth are common microbiological growth media made from potato infusion, and dextrose. Potato dextrose agar (abbreviated "PDA") is the most widely used medium for growing fungi and bacteria.