Acid potato dextrose agar (half strength)

From Bugwoodwiki

Purpose

This medium is used specifically for culturing Colletotrichum cerealis from turfgrass.

Ingredients

Ingredient 1 L 500 ml
Part 1
Distilled water 1000 ml 500 ml
Dehydrated Potato Dextrose Agar 19.5 g 9.75 g
Agar 7.5 g 3.75 g
Part 2
Lactic Acid 1 ml .50 ml

Instructions

  1. Mix distilled water, Potato dextrose agar and agar.
  2. Autoclave and cool to 50-55°C
  3. Concentrated lactic acid while stirring.

Notes

  • This medium reduces vegetative growth and can facilitate the culture and identification of many fungi. Some people use quarter strength APDA; adjust the agar accordingly to 1.5% total.

References

Contributed by

From the Culture Media for Plant Pathogenic Fungi and Bacteria; University of Massachusetts: contributed by Robert L. Wick