1030 .
SMITHELLA MEDIUM
What is this page?
Equipment needed:
Autoclave
Filter
Gassing station
Hungate tubes
Final pH:
7.0 - 7.2
Select a strain (optional):
ml
| Compound | Amount | Unit | |||
|---|---|---|---|---|---|
|
|
NH4Cl | 1.0 | g | ||
|
|
MgCl2 x 6 H2O | 1.0 | g | ||
|
|
CaCl2 x 2 H2O | 0.4 | g | ||
|
|
KH2PO4 | 0.4 | g | ||
|
|
Wolfe's mineral elixir | 1.0 | ml | ||
|
|
Yeast extract | 2.0 | g | ||
|
|
Trypticase peptone
(BD BBL) |
2.0 | g | ||
|
|
Sodium resazurin
(0.1% w/v) |
0.5 | ml | ||
|
|
Na2CO3 | 1.0 | g | ||
|
|
Na-crotonate solution (1 M) | 20.0 | ml | ||
|
|
2-Mercaptoethanesulfonic acid
(coenzyme M) |
0.5 | g | ||
|
|
Wolin's vitamin solution (10x) | 1.0 | ml | ||
|
|
Na2S x 9 H2O | 0.3 | g | ||
|
|
Distilled water | 1000.0 | ml | ||
| 1 Dissolve ingredients (except carbonate, crotonate, coenzyme M, vitamins and sulfide), then sparge medium with 80% N2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic. Dispense medium under same gas atmosphere into Hungate-type tubes or serum vials (e.g., 5 ml medium in Balch-type tubes) and autoclave. Add crotonate, coenzyme M, vitamins and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas and carbonate from a sterile anoxic stock solution prepared under 80% N2 and 20% CO2 gas mixture. Stock solutions of crotonate, coenzyme M and vitamins should be sterilized by filtration. Adjust pH of the complete medium to 7.0 - 7.2. | |||||
| 2 Note: Use 10% (v/v) as inoculum. | |||||
Wolfe's mineral elixir #
1000
| Compound | Amount | Unit | |||
|---|---|---|---|---|---|
|
|
MgSO4 x 7 H2O | 30.00 | g | ||
|
|
MnSO4 x H2O | 5.00 | g | ||
|
|
NaCl | 10.00 | g | ||
|
|
FeSO4 x 7 H2O | 1.00 | g | ||
|
|
CoCl2 x 6 H2O | 1.80 | g | ||
|
|
CaCl2 x 2 H2O | 1.00 | g | ||
|
|
ZnSO4 x 7 H2O | 1.80 | g | ||
|
|
CuSO4 x 5 H2O | 0.10 | g | ||
|
|
AlK(SO4)2 x 12 H2O | 0.18 | g | ||
|
|
H3BO3 | 0.10 | g | ||
|
|
Na2MoO4 x 2 H2O | 0.10 | g | ||
|
|
(NH4)2Ni(SO4)2 x 6 H2O | 2.80 | g | ||
|
|
Na2WO4 x 2 H2O | 0.10 | g | ||
|
|
Na2SeO4 | 0.10 | g | ||
|
|
Distilled water | 1000.00 | ml | ||
| 1 First adjust pH to 1.0 with diluted H2SO4, then add and dissolve the salts. | |||||
Na-crotonate solution (1 M) #
1000
| Compound | Amount | Unit | |||
|---|---|---|---|---|---|
|
|
Crotonic acid
(ALDRICH 113018) |
86 | g | ||
|
|
NaOH
(10 N) |
100 | ml | ||
|
|
Distilled water | 900 | ml | ||
| 1 Dissolve crotonic acid in 800 ml distilled water, add around 100 ml of 10 N NaOH and adjust pH to around 7. Then add water to reach a volume of 1000 ml. Sterilize by filtration under 100% N2 gas atmosphere. | |||||
Wolin's vitamin solution (10x) #
1000
| Compound | Amount | Unit | |
|---|---|---|---|
|
|
Biotin | 20 | mg |
|
|
Folic acid | 20 | mg |
|
|
Pyridoxine hydrochloride | 100 | mg |
|
|
Thiamine HCl | 50 | mg |
|
|
Riboflavin | 50 | mg |
|
|
Nicotinic acid | 50 | mg |
|
|
Calcium D-(+)-pantothenate | 50 | mg |
|
|
Vitamin B12 | 1 | mg |
|
|
p-Aminobenzoic acid | 50 | mg |
|
|
(DL)-alpha-Lipoic acid | 50 | mg |
|
|
Distilled water | 1000 | ml |