Official DSMZ medium: This medium was manually curated by experts from the DSMZ.
| 1 Crucial: prepare all solutions in either clean glassware (incubated in 0.1 % HCl and washed with double distilled water) or GREINER PS container (201172). Do not use container with rubber stoppers or septum. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
| FW basal salt solution (10x) | 1000.00 | ml | - | - | |
| NH4Cl (1 M) | 0.50 | ml | - | - | |
| NaHCO3 buffer (1M) | 2.00 | ml | - | - | |
| Trace element solution (Nitrososphaera) | 1.00 | ml | - | - | |
| FeNaEDTA solution (7.5 mM) | 1.00 | ml | - | - | |
| MES Hydrat | 1.95 | g | - | - | |
| 2 Add 100 mL of 10x FW basal salt solution to 800 mL sterile double distilled water just before use. | |||||
| 3 Add per litre of 1x FW basalt solution: 0.5 mL NH4Cl (1 M), 2 mL NaHCO3 (1 M), 1 mL FeNaEDTA (7.5 mM), 1 mL trace elements solution, 1.95 g MES Hydrat. | |||||
| 4 Adjust pH to the specific pH for each strain. | |||||
| 5 Make up to 1000 ml with double distilled water. | |||||
| 6 Filtrate with 0.2 µm Nalgene® bottle-top sterile filter units (e.g. ThermoFischer 597-4520) in a clean and sterile glass bottle. | |||||
| 7 Aliquote medium in GREINER PS containers. Final medium can be stored at 4 °C in the dark for weeks. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
| NaCl | 10 | g | 10 | 171.116 | |
| MgCl2 x 6 H2O | 4 | g | 4 | 19.675 | |
| CaCl2 x 2 H2O | 1 | g | 1 | 6.802 | |
| KH2PO4 | 2 | g | 2 | 14.697 | |
| KCl | 5 | g | 5 | 67.069 | |
| 1 Prepare FW basal salt solution (10x) in double distilled water. | |||||
| 2 Autoclave at 121 °C for 20 min. | |||||
| 3 Cool down to room temperature. | |||||
| 4 10x FW basal salt solution can be stored at 4 °C for months. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
| NH4Cl | 2.67 | g | 53.4 | 998.317 | |
| Double distilled water | 50.00 | ml | - | - | |
| 1 Dissolve 2.67 g ammonium chloride in 50 mL Double distilled water. | |||||
| 2 Filtrate (0.2 µm). | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
| NaHCO3 | 4.2 | g | 84 | 999.917 | |
| Double distilled water | 50.0 | ml | - | - | |
| 1 Dissolve 4.2 g of NaHCO3 in 50 mL Double distilled water (use a small beaker with stirring rod to dissolve) and sterilize by filtration (0.2 µm) in the laminar flow hood. Store in a sterile 50 mL falcon tube at 4 °C. Avoid high headspace to liquid ratios to ensure stable concentration. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
|
HCl
(12.5M) |
8 | mL | 3.646 | 100 | |
| H3BO3 | 30 | mg | 0.03 | 0.485 | |
| MnCl2 x 4 H2O | 100 | mg | 0.1 | 0.505 | |
| CoCl2 x 6 H2O | 190 | mg | 0.19 | 1.463 | |
| NiCl2 x 6 H2O | 24 | mg | 0.024 | 0.185 | |
| CuCl2 x 2 H2O | 2 | mg | 0.002 | 0.012 | |
| ZnSO4 x 7 H2O | 144 | mg | 0.144 | 0.501 | |
| Na2MoO4 x 2 H2O | 36 | mg | 0.036 | 0.149 | |
| Double distilled water | 1000 | ml | - | - | |
| 1 This solution contains no iron! Sterilise by autoclaving or filtration (0.2 µm) and store in the dark at 4 °C. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
| FeNa-EDTA | 2753 | mg | 2.753 | - | |
| Double distilled water | 1000 | ml | - | - | |
| 1 Sterilise by filtration (0.2 µm) and store in the dark at 4 °C. | |||||
| Last modified: | 17.09.24 |
| Source: | MediaDive: DSMZ |
| Taxonomic range: | Archaea |
| Taxonomic range: | Bacteria |
| Medium type: | Defined medium |
| Final pH: | 5.1 |
| Equipment needed: | Autoclave, Filter |
|
Description:
Medium for the cultivation of AOA originating from freshwater habitats. Especially, Nitrosotalea (N. devanaterra, N. sinensis). |
|
| Edit in Medium builder | |
| All strains for this medium: | 2 |