Smolke:Protocols/Yeast Media Recipes

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Yeast Nitrogen Base Minus Amino Acids (YNB-AA) Recipe

  • For 1 L Batch:
    • 1.7g Yeast Nitrogen Base (stored in cold room)
    • 5g NH3SO4 (Ammonium Sulfate, stored in chemical stock cabinet)
  • Dissolve in 800mL Np H2O for YNB-AA stock

Autoclave (store at RT for media stocks)

To use as working media:

  • After autoclaving add:
    • 100mL 10X (20%) Dextrose
    • 100mL 10X Drop Out stock (10X DO stock recipe here: [[1]])
    • 1 L Total Volume

Yeast Nitrogen Base Minus Amino Acids Non-Inducing, Non-Repressing (YNB-AA NINR) Recipe

  • For 1 L Batch:
    • 1.7g Yeast Nitrogen Base
    • 5g NH3SO4
  • Dissolve in 700mL Np H2O for YNB-AA NINR stock
  • Autoclave (store at RT for media stocks)

To use as working media:

  • After autoclaving add:
    • 100mL 10X (20%) Raffinose
    • 100mL 10X (10%) Sucrose
    • 100mL 10X Drop Out stock
    • 1 L Total Volume

Yeast Peptone (YP) Media Recipe

  • For 1 L Batch:
    • 10g Yeast Extract [Bacto™ REF#212750] (stored in chemical stock cabinet)
    • 20g Peptone [Bacto™ REF#211677] (stored in chemical stock cabinet)
    • Dissolve in 900mL Np H2O for YP stock

Autoclave (store at RT for media stocks) To use as working media: After autoclaving add:

    • 100mL 10X (20%) Dextrose
    • 1 L Total Volume YPD (Yeast Peptone Dextrose)

To pour any of these media stocks as plates:

    • Add 20g agar per 1L final media volume before autoclaving
    • See here [[2]]

For yeast KanMX selection:

    • Must be in YP media (doesn't work with YNB)
    • Add 400mg/L for selection (in plates)
    • Add 200mg/L for maintenance (in liquid culture media)

-Michael S. Siddiqui 21:53, 4 January 2011 (EST)* 01/04/2011 (based mainly on communications from Andrew Babiskin)

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