Media Recipes
1. LB Plates
(Luria Broth)
For Bacteria:
Ingredients
3% Agar
2x LB Broth
Directions
Loosen the cap on bottle of 3% agar and heat in microwave for 8 minutes at ½ power. After eight minutes, remove the bottle of agar and swirl slowly to melt the agar at the bottom of the bottle. When the bottle of agar is cool enough to touch, pour the contents into the 2x LB (the agar is more dense and will sink to the bottom). Mix well by swirling and inverting the bottle several times.
Pour the plates under the hood to lessen the growth of mold. After the agar has solidified, invert the plates and mark them with the appropriate code. Let the plates set out a few days to dry out and then place them in the cold room in the correct storage container.
***
Follow aseptic technique. This means flaming the lids of both bottles before pouring the agar into the broth. Also flame the lid often while pouring plates.
2. LB-Carb Plates
For growth and selection of bacteria with ampicillin resistant plasmid.
Ingredients:
3% Agar
2x LB Broth
500m l of 1000x carbenicillin (in freezer)
Directions:
Loosen cap on bottle of 3% agar and heat in microwave for 8 minutes at 1/2 power. After eight minutes, remove the bottle of agar and swirl slowly to melt the agar at the bottom of the bottle. Add the 500m l carbenicillin to the 2x LB broth. When the bottle of agar is cool enough to touch, pour the contents into the 2x LB (the agar is more dense and will sink to the bottom). Mix well by swirling and inverting the bottle several times.
Pour the plates under the hood to lessen the growth of mold. After the agar has solidified, invert the plates and mark them with the appropriate code (a black stripe). Let the plates set out a few days to dry out, and then place them in the cold room in the correct storage container.
***
Follow aseptic technique. This means flaming the lids of both bottles before pouring the agar into the broth. Also flame the lid often while pouring plates.
3. YPD Plates
(Yeast extract, Peptone, Dextose)
For yeast (S. cerevisiae).
Ingredients:
4% agar
2x YEP (yeast extract peptone) + trp
Dextrose (2% final)
Directions:
Loosen the cap on the bottle of 4% agar and heat in the microwave for 8 minutes at 1/2 power. After eight minutes, remove the bottle of agar and swirl slowly to melt the agar at the bottom of the bottle. Add 50ml dextrose to the YEP. When the bottle of agar is cool enough to touch, pour the contents into the 2x YEP (the agar is more dense and will sink to the bottom). Mix well by swirling and inverting the bottle several times.
Pour the plates under the hood to lessen the growth of mold. After the agar has solidified, invert the plates and mark them with the appropriate code ( a green stripe). Let the plates set out a few days to dry out and then place them in the cold room in the correct storage container.
***
Follow aseptic technique. This means flaming the lids of both bottles before pouring the agar into the broth. Also flame the lid often while pouring plates.
(Synthetic Complete)
Ingredients:
2x SC 6 media 250ml
4% Agar 250ml
Trp 5ml
Leu 10ml
His 1.5ml Amino Acids
Ade 5ml
Lys 5ml
Ura 5ml
20% Glucose 50ml Carbon Sources
20% Galactose 50ml
Directions:
Loosen cap and heat agar in microwave for for 8 minutes at 1/2 power. While heating the agar, add the desired carbon source (either Glucose or Galactose, but not both) and all amino acids except those that are to be lacking to the 2x SC 6. (For example, if the plates are to be Ura, then all but Ura are added.) Swirl the agar to make sure that it is completely melted. Heat 2x SC 6 media for 1 minute at full power. Always add 4% agar to the 2x SC 6 (not the other way around). Add quickly, making sure not to pour agar onto the lid of the media bottle.
Obtain a stack of plates from the back room. Pour enough of the total mixture to cover the bottom of the plates. If bubbles form on the plates, use the burner to flame the surface of the media and the bubbles will disappear. Make the appropriate markings on the plates according to the preset marking system. Let plates set overnight. Before placing in the cold room, wipe the lids of the plates with a Kim-wipe with EtOH.
***
Follow aseptic technique. This means flaming the lids of both bottles before pouring the agar into the media. Also flame the lid often while pouring plates. Also, keep all bottles from the shelf on the lab bench because they may be contaminated after use. (Exception: Trp must go back into the refrigerator.)
5. 1x YPD
(Yeast extract, Peptone, Dextose)
Broth for Yeast
Ingredients:
Yeast extract 5g
Bacto-peptone 10g
Glucose 10g
Distilled water 500ml
Directions:
Weigh out the correct amount of each ingredient in a separate weigh boat using an electric balance and transfer each to a flask. Add Milli-Q water and mix well using a spinbar. Distribute as 100ml into small bottles. Label with name and date. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
6. 1x LB
(Luria Broth)
Broth for bacteria.
Ingredients: 1x
Bacto-tryptone 5 g
Yeast Extract 2.5 g
Sodium chloride 5 g
Distilled H2O 500ml
Directions:
Mix all of the ingredients together and add the water. Mix well by stirring, using a spinbar. After mixing, distribute as 100ml aliquots in small bottles. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle..
7. 2x LB media
(Luria Broth)
Broth for bacteria.
Ingredients: 2x
Bacto-tryptone 20g
Yeast Extract 10g
Sodium chloride 20g
Distilled H2O 1000ml
Directions:
Mix all of the ingredients together and add the water. Mix well by stirring, using a spinbar. After mixing, distribute as 250ml aliquots in 500ml bottles. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
8. 3% Agar
For bacteria.
Ingredients:
DifcoAgar 7.5g
Distilled H2O 250ml
Directions:
Weigh out 7.5g of agar into a 500ml bottle. Add the water. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
9. 4% Agar
For yeast
Ingredients:
DifcoAgar 10g
Distilled H2O 250ml
Directions:
Weigh out 10g of agar into a 500ml bottle. Add the water. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
10. 20% Glucose
(aka Dextrose)
Media supplement for bacteria, yeast, and pombe.
Ingredients:
Dextrose (D-glucose) 20g 100g
Distilled H2O 100ml 500ml
Directions:
Add approximately 4/5 the volume of distilled water (80ml or 400ml, respectively for above volumes) to a flask. Place a spinbar in the flask and begin mixing. Add the proper amount of glucose to the flask, heating slightly to assure the glucose dissolves. When dissolved, pour the solution back into a graduated cylinder and bring up to total volume (100ml or 500ml). Mix well before distributing as 100ml aliquots in 220cc bottles (flattened sides). Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
11. 20% Galactose
Media supplement for bacteria, yeast, and pombe.
Ingredients:
D-galactose 20g 100g
Distilled H2O 100ml 500ml
Directions:
Weigh out 20g of galactose into a flask. Mix the galactose in 4/5 of the volume of distilled water (80ml or 400ml, respectively for above volumes) using a spinbar. When dissolved, pour solution back into a graduated cylinder and bring up to total volume (100ml or 500ml). Mix well and distribute as 100ml aliquots in 220cc bottles (flattened sides). Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
12. 10% Raffinose
Ingredients:
Raffinose 10g 50g
Distilled H2O 100ml 500ml
Directions:
Weigh out 10g of raffinose into a flask. Mix the raffinose in 4/5 of the volume of distilled water (80ml or 400ml, respectively for above volumes) using a spinbar. When dissolved, pour solution back into a graduated cylinder and bring up to total volume (100ml or 500ml). Mix well and distribute as 100ml aliquots in 220cc bottles (flattened sides). Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
13. 2x YEC
(Yeast Extract Casamino acids)
Broth for pombe.
Ingredients:
Yeast extract 5g
Casamino acids 2g
Distilled H2O 500ml
Directions:
Weigh out 5g of yeast extract and transfer it to a 1000ml flask. Add 2g of casamino acids. Add the distilled water and mix, using a spinbar. Distribute as 250ml in two bottles. Label the bottles with name and concentration. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
Note: Usually make up a liter and distribute into four bottles.
14. 2x YEP + trp
(Yeast Extract Peptone)
Broth for yeast.
Ingredients:
Yeast extract (Bacto) 20g
Bacto-peptone 40g
Tryptophan 0.64g
Distilled H2O 1000ml
Directions:
Mix all the ingredients together and add the distilled water. Mix well using a spinbar. Distribute as 250ml into 500ml bottles. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
15. 2x SC 6
(Synthetic Complete)
(lacks 6 most common auxotrophic makers)
Ingredients:
Yeast nitrogen base 9g
Ammonium sulfate 25g
"-6" amino acid mix 10g
Milli-Q water 2.5L
Directions:
Weigh out the correct amount of each ingredient in a separate weigh-boat using an electric balance and transfer each to a flask. Add Milli-Q water and mix to dissolve using a spinbar. Distribute as 250ml into 10 500ml Wheaton bottles. Label with name and date. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
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16. Amino acid dropout mixes for SC medium |
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Weigh out the following in a plastic bottle (write out amount of each and check off as they are weighed): |
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date: |
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Sigma # |
relative amount |
mm |
dd |
yy |
|
|
adenine sulfate |
A9126 |
0.25 |
|||
|
alanine |
A7627 |
1 |
|||
|
arginine |
A5006 |
1 |
|||
|
aspartic acid |
A9256 |
1 |
|||
|
asparagine |
A8381 |
1 |
|||
|
cysteine |
C7880 |
1 |
|||
|
glutamic acid |
C1626 |
1 |
|||
|
glutamine |
G3126 |
1 |
|||
|
glycine |
G6761 |
1 |
|||
|
histidine |
H8125 |
1 |
|||
|
isoleucine |
I2752 |
1 |
|||
|
leucine |
L8000 |
2 |
|||
|
lysine |
L5626 |
1 |
|||
|
methionine |
M9625 |
1 |
|||
|
phenylalanine |
P2126 |
1 |
|||
|
proline |
P0380 |
1 |
|||
|
serine |
S4500 |
1 |
|||
|
threonine |
T8625 |
1 |
|||
|
tryptophan |
T0254 |
1 |
|||
|
tyrosine |
T3754 |
1 |
|||
|
uracil |
U0750 |
1 |
|||
|
valine |
V0500 |
1 |
|||
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Mix thoroughly and store in plastic bottle with steel mixing balls. |
17. 40 mM Trp
Amino acid supplement for yeast, pombe.
Ingredients:
L-Tryptophan 2g
Milli-Q water 250ml
Directions:
Weigh out the correct amount of tryptophan in a weigh-boat using an electric balance and transfer to a flask. Add Milli-Q water and mix to dissolve using a spinbar. Distribute as 50ml into 5 bottles. Label with name, concentration and date. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle. Store at 4° C, wrapped in foil.
18. 100 mM His
Amino acid supplement for yeast, pombe.
Ingredients:
L-Histidine HCl*H2O 2.1g
Milli-Q water 100ml
Directions:
Weigh out the correct amount of histidine in a weigh-boat using an electric balance and transfer to a flask. Add Milli-Q water and mix to dissolve using a spinbar. Distribute as 50ml into 2 bottles. Label with name, concentration and date. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
19. 100 mM Leu
Amino acid supplement for yeast, pombe.
Ingredients:
L-Leucine 1.31g 1.96g
Milli-Q water 100ml 150ml
Directions:
Weigh out the correct amount of Leucine in a weigh-boat using an electric balance. Cover this with Milli-Q water. Transfer to a flask and fill to the desired volume with Milli-Q water. Mix to dissolve using a spinbar. Distribute as 50ml into the appropriate number of bottles. Label with name, concentration and date. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
20. 100 mM Lys
Amino acid supplement for yeast, pombe.
Ingredients:
L-Lysine (mono-HCl) 1.83g 2.75g
Milli-Q water 100ml 150ml
Directions:
Weigh out the correct amount of lysine in a weigh-boat using an electric balance and transfer to a flask. Add Milli-Q water and mix to dissolve using a spinbar. Distribute as 50ml into the appropriate number of bottles. Label with name, concentration and date. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
21. 20 mM Ura
Amino acid supplement for yeast, pombe.
Ingredients:
Uracil 0.224g 0.336g
Milli-Q water 100ml 150ml
Directions:
Weigh out the correct amount of uracil in a weigh-boat using an electric balance and transfer to a flask. Add Milli-Q water and mix to dissolve using a spinbar. Distribute as 50ml into the appropriate number of bottles. Label with name, concentration and date. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
22. 16 mM Ade
Amino acid supplement for yeast, pombe.
Ingredients:
Adenine hemisulfate 0.3g 0.45g
Milli-Q water 100ml 150ml
Directions:
Weigh out the correct amount of adenine hemisulfate in a weigh-boat using an electric balance and transfer to a flask. Add Milli-Q water and mix to dissolve using a spinbar. Distribute as 50ml into the appropriate number of bottles. Label with name, concentration and date. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
23. 2x M9 (1L)
(Minimal (for bacteria))
Ingredients:
Sodium Phosphate Dibasic (Na2HPO4* 7H2O) 25.6g
Potassium Phosphate Dibasic (KH2PO4) 6.0g
Sodium Chloride (NaCl) 1.0g
Ammonium Chloride (NH4Cl) 2.0g
Directions:
Weigh out the correct amount of each ingredient in a separate weigh-boat using an electric balance and transfer each to a flask. Add Milli-Q water and mix to dissolve using a spinbar. Distribute as 250ml into 4 500ml Wheaton bottles. Label with name and date. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
To make media
Ingredients:
1M MgSO4 1ml
20% Glucose 5ml
50 mM CaCl2 1ml
0.2% Thaimine 0.5ml
Directions:
Add the above to 2x M9 (250ml) along with:
For plates: 250ml 3% agar
For broth: 250ml sterile water
Other additions:
10% CAA (cas amino acids) 10ml
20 mM Uracil 5ml
40 mM Tryptophan 5ml
***Note: CAA is a cell growth promotor and should not be used with any amino acid selection.
For Ura For -Leu
10% CAA 10ml 40 mM Ura 5ml
40 mM Trp 5ml 40 mM Trp 5ml
24. 2x YNB
(Yeast Nitrogen Base)
3.6 g Yeast Nitrogen Base
10 g Ammonium sulfate
1000 ml water
Directions:
Weigh out the correct amount of each ingredient in a separate weigh-boat using an electric balance and transfer each to a flask. Add Milli-Q water and mix to dissolve using a spinbar. Distribute as 250ml into 4 500ml Wheaton bottles. Label with name and date. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
25. 5-FOA plates
(5-Fluoroorotic Acid)
(counterselect URA+)
250 ml 2X SC-6
0.5 g 5-FOA (5-flouroorotic acid)
25 mg uracil
50 ml 20% glucose
250 ml 4% agar
Weigh the 5-FOA and uracil into the SC-6. Heat in microwave 1 or 2 minutes and swirl until all powder is dissolved.
Loosen cap and heat agar in microwave for 8 minutes at 1/2 power. While heating the agar, add the glucose and all amino acids except those that are to be lacking and URACIL to the 2x SC 6. (For example, if the plates are to be FOA-His, then all but His are added.) Swirl the agar to make sure that it is completely melted. Heat 2x SC 6 media for 1 minute at full power. Always add 4% agar to the 2x SC 6 (not the other way around). Add quickly, making sure not to pour agar onto the lid of the media bottle.
Obtain a stack of plates from the back room. Pour enough of the total mixture to cover the bottom of the plates. If bubbles form on the plates, use the burner to flame the surface of the media and the bubbles will disappear. Make the appropriate markings on the plates according to the preset marking system. Let plates set overnight. Before placing in the cold room, wipe the lids of the plates with a Kim-wipe with EtOH.
26. Top Agar
For phage infection.
Ingredients:
Per 250ml:
Bactotryptone 2.5g
Yeast extract 1.3g
NaCl 1.3g
Agar 1.8g
Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
27. 2x VLP (2x YNB/CAA)
Media for isolating Virus-Like Particles
(Yeast Nitrogen Base/Casamino Acids)
3.6 g YNB
10 g Ammonium sulfate
40 g Cas Amino Acids
1000 ml water
Directions:
Weigh out the correct amount of each ingredient in a separate weigh-boat using an electric balance and transfer each to a flask. Add Milli-Q water and mix to dissolve using a spinbar. Distribute as 250ml into 4 500ml Wheaton bottles. Label with name and date. Cap loosely, pre-warm, and autoclave for 20 minutes, liquid cycle.
For your convenience, the chart below can be cut out and taped up at your lab bench.
per 500 ml per plate
TRP 5 ml 0.2 ml
URA 5 ml 0.2 ml
LEU 10 ml 0.4 ml
HIS 1.5 ml 0.05 ml
ADE 5 ml 0.2 ml
LYS 5 ml 0.2 ml
REMEMBER TO ADD A CARBON SOURCE!