Desmid Medium

UTEX sells Desmid Medium at 1X concentration only. Stock solutions and individual components for this specific medium are currently not available for purchase.

Desmid Medium

Freshwater Medium | 6 < pH < 8

NO3

View Media Recipe

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$ 55.00

Deadline to place an order for Desmid Medium with a 2024 shipment date:
Dec 11, 2024 at 5:00 PM CST

Desmid Medium

Modification of Pringsheim's desmidiacean medium.

Directions

For 1 L Total

To approximately 900 mL of dH₂O add each of the components in the order specified while stirring continuously.
Bring total volume to 1 L with dH₂O.
- For 1.5% agar medium pour 15 g of agar into the flask; do not mix.
Cover and autoclave medium.
Store at refrigerator temperature.

#	Component	Amount	Stock Solution Concentration	Final Concentration
1	Soilwater: GR+ Medium	50 mL/L
2	MgSO_4•7H₂O (Sigma 230391)	10 mL/L	0.2 g/200 mL dH2O	0.04 mM
3	K₂HPO₄ (Sigma P 3786)	10 mL/L	0.2 g/200 mL dH2O	0.057 mM
4	KNO₃ (Baker 3190)	10 mL/L	2 g/200 mL dH2O	0.99 mM

Desmid Medium Recipe PDF

Safety Data Sheet (SDS)

FAQs:Algal Culture Media

Important Notes To Consider:

The quality of water, including natural seawater, is important. The term 'dH₂O' generally refers to distilled, deionized, distilled/deionized water, Milli-Q water (Millipore Corp.), etc. Natural seawater and natural freshwater should be obtained from a non-polluted source.
When dissolving chemicals, wait for the first component to dissolve before adding the second. Stirring, and sometimes the addition of heat, is often required to dissolve the chemicals efficiently. Preparation of stock solutions for frequently made algal culture media make preparing media convenient but also necessary to avoid errors from weighing very tiny amounts.
Attention should be given to the pH of the final medium. In most cases, if pH adjustment is required, this occurs before sterilization. Please note that autoclaving removes carbon dioxide from media lacking carbonate stabilizing buffers. This would make the medium very alkaline soon after removal from the autoclave. In these cases, you should wait approximately 24 hours for gaseous equilibrium before inoculating the medium.