Porphryridium Medium

Upcoming Order Deadlines:

Orders for algal culture media placed after 5:00 PM CST on Wednesday, November 14th through Wednesday, November 28th, will not ship until Monday, December 3rd, 2018. There will be no outgoing shipments on November 26th, 2018. Please view more information here.

Porphyridium Medium Recipe

Suitable for axenic marine cultures of Porphyridium, Brachiomonas, Cylindrotheca and others.



For 1 L Total

  1. To approximately 350 mL of dH2O, add each of the components in the order specified while stirring continuously.
  2. Bring the total volume to 1 L with dH2O.
    • *For 1.5% agar medium add 15 grams of agar into the flask; do not mix.
  3. Cover and autoclave medium.
  4. Store at refrigerator temperature.

# Component Amount Stock Solution Concentration Final Concentration
1 Seawater (non-sterilized) 500 mL/L    
2 Soilwater: GR+ Medium 100 mL/L    
3 Yeast extract (Bacto, Difco) 1 g/L    
4 Tryptone (Sigma T 9410) 1 g/L