1043 .
IGNISPHAERA MEDIUM
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Equipment needed:
Autoclave
Gassing station
Serum bottle
Final gas composition:
100 % N2
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Final pH:
6.5
Select a strain (optional):
ml
| Compound | Amount | Unit | |||
|---|---|---|---|---|---|
|
|
(NH4)2SO4 | 1.30 | g | ||
|
|
CaCl2 x 2 H2O | 74.00 | mg | ||
|
|
MgSO4 x 7 H2O | 0.28 | g | ||
|
|
KH2PO4 | 0.28 | g | ||
|
|
Yeast extract
(OXOID) |
0.10 | g | ||
|
|
Trypticase peptone
(BD BBL) |
2.00 | g | ||
|
|
Modified Wolin's mineral solution | 10.00 | ml | ||
|
|
Sodium resazurin
(0.1% w/v) |
0.50 | ml | ||
|
|
FeCl3 x 6 H2O
(0.1% w/v in 0.2 N HCl) |
0.50 | ml | ||
|
|
L-Cysteine HCl x H2O | 0.30 | g | ||
|
|
Starch
(soluble) |
2.00 | g | ||
|
|
Na2S x 9 H2O | 0.30 | g | ||
|
|
Distilled water | 1000.00 | ml | ||
| 1 Dissolve ingredients (except ferric chloride, cysteine, starch and sulfide), sparge medium with 100% N2 gas for 30 - 45 min to make it anoxic. Add ferric chloride and solid cysteine, then adjust pH to 6.3. Dispense medium under 100% N2 gas atmosphere into anoxic Hungate-type tubes or serum vials (e.g., 20 ml medium in 50 ml bottles) and autoclave. Prior to inoculation add starch and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas. Adjust pH of complete medium to 6.5, if necessary. | |||||
Modified Wolin's mineral solution #
1000
| Compound | Amount | Unit | |||
|---|---|---|---|---|---|
|
|
Nitrilotriacetic acid | 1.50 | g | ||
|
|
MgSO4 x 7 H2O | 3.00 | g | ||
|
|
MnSO4 x H2O | 0.50 | g | ||
|
|
NaCl | 1.00 | g | ||
|
|
FeSO4 x 7 H2O | 0.10 | g | ||
|
|
CoSO4 x 7 H2O | 0.18 | g | ||
|
|
CaCl2 x 2 H2O | 0.10 | g | ||
|
|
ZnSO4 x 7 H2O | 0.18 | g | ||
|
|
CuSO4 x 5 H2O | 0.01 | g | ||
|
|
AlK(SO4)2 x 12 H2O | 0.02 | g | ||
|
|
H3BO3 | 0.01 | g | ||
|
|
Na2MoO4 x 2 H2O | 0.01 | g | ||
|
|
NiCl2 x 6 H2O | 0.03 | g | ||
|
|
Na2SeO3 x 5 H2O | 0.30 | mg | ||
|
|
Na2WO4 x 2 H2O | 0.40 | mg | ||
|
|
Distilled water | 1000.00 | ml | ||
| 1 First dissolve nitrilotriacetic acid and adjust pH to 6.5 with KOH, then add minerals. Adjust final to pH 7.0 with KOH. | |||||