DSMZ 912 . TREPONEMA R8 MEDIUM

Official DSMZ medium: This medium was manually curated by experts from the DSMZ.

Culture medium recipe

Vol.
×
Equipment needed: Autoclave Hungate tubes Filter Gassing station
Compound Amount Unit Conc. [g/L] Conc. [mM]
NaCl 1.00 g 0.997 17.06
MgCl2 x 6 H2O 0.50 g 0.499 2.452
KH2PO4 0.20 g 0.199 1.465
K2HPO4 0.25 g 0.249 1.431
NH4Cl 0.30 g 0.299 5.592
KCl 0.30 g 0.299 4.012
CaCl2 x 2 H2O 15.00 mg 0.015 0.102
Trace element solution SL-10 1.00 ml - -
Selenite-tungstate solution 1.00 ml - -
MOPS
(SIGMA)
2.10 g 2.094 10.005
D-Glucose 0.90 g 0.897 4.981
Yeast extract 0.19 g 0.189 -
Peptone
(BD Bacto)
0.19 g 0.189 -
Sodium resazurin
(0.1% w/v)
0.50 ml 5.0e-4 0.002
NaHCO3 2.50 g 2.493 29.67
Clarified rumen fluid 50.00 ml - -
Wolin's vitamin solution (10x) 1.00 ml - -
L-Cysteine HCl x H2O 0.40 g 0.399 2.271
Na2S x 9 H2O 0.40 g 0.399 1.66
Distilled water 950.00 ml - -
1 Dissolve ingredients (except bicarbonate, rumen fluid, vitamins, cysteine and sulfide) and sparge medium with 80% N2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic. Add bicarbonate, adjust pH to 7.2, distribute medium under 80% N2 and 20% CO2 gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. After sterilization add rumen fluid, vitamins, cysteine and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas atmosphere. Vitamins should be sterilized by filtration. Check pH of complete medium and adjust to 7.2, if necessary.
Solution occurs in 263 other media (first defined in Medium 320).
Compound Amount Unit Conc. [g/L] Conc. [mM]
HCl
(25%)
10.0 ml 2.5 68.568
FeCl2 x 4 H2O 1.5 g 1.5 7.545
ZnCl2 70.0 mg 0.07 0.514
MnCl2 x 4 H2O 100.0 mg 0.1 0.505
H3BO3 6.0 mg 0.006 0.097
CoCl2 x 6 H2O 190.0 mg 0.19 1.463
CuCl2 x 2 H2O 2.0 mg 0.002 0.012
NiCl2 x 6 H2O 24.0 mg 0.024 0.185
Na2MoO4 x 2 H2O 36.0 mg 0.036 0.149
Distilled water 990.0 ml - -
1 First dissolve FeCl2 in the HCl, then dilute in water, add and dissolve the other salts. Finally make up to 1000.00 ml.
Solution occurs in 176 other media (first defined in Medium 385).
Compound Amount Unit Conc. [g/L] Conc. [mM]
NaOH 0.5 g 0.5 12.501
Na2SeO3 x 5 H2O 3.0 mg 0.003 0.011
Na2WO4 x 2 H2O 4.0 mg 0.004 0.012
Distilled water 1000.0 ml - -
Solution occurs in 27 other media (first defined in Medium 1310).
1 Rumen fluid from cow or sheep (obtained from fistulated animals or abattoir refuse) is filtered through muslin, autoclaved at 121°C for 15 min and then centrifuged at 27,000 g for 20 min. The supernatant is made anoxic by sparging with 100% N2 gas for 15 min, dispensed under same gas atmosphere into anoxic serum vials to 30% of volume and then stored frozen at -20°C.
Solution occurs in 299 other media (first defined in Medium 120).
Compound Amount Unit Conc. [g/L] Conc. [mM]
Biotin 20 mg 0.02 0.082
Folic acid 20 mg 0.02 0.045
Pyridoxine hydrochloride 100 mg 0.1 0.486
Thiamine HCl 50 mg 0.05 0.148
Riboflavin 50 mg 0.05 0.133
Nicotinic acid 50 mg 0.05 0.406
Calcium D-(+)-pantothenate 50 mg 0.05 0.21
Vitamin B12 1 mg 1.0e-3 7.4e-4
p-Aminobenzoic acid 50 mg 0.05 0.365
(DL)-alpha-Lipoic acid 50 mg 0.05 0.242
Distilled water 1000 ml - -

Metadata

Last modified: 08.04.22
Source: DSMZ
Taxonomic range:  Bacteria
Medium type: Complex medium
Final pH: 7.2
Equipment needed: Autoclave, Filter, Gassing station, Hungate tubes
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Gas composition

  • 80 % N2
  • 20 % CO2

Detailed instructions for the cultivation of anaerobes including important warnings can be found in the cultivation instructions .

Associated strains

All strains for this medium: 1

Molecular composition

Compound Conc. [g/L] Conc. [mM]
NaHCO3 2.493 29.67
MOPS 2.094 10.005
NaCl 0.997 17.06
D-Glucose 0.897 4.981
MgCl2 x 6 H2O 0.499 2.452
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Cultivation metadata from 1 strains BacDive

phyla 1 1 strain
oxygen anaerobe 1 strain
temperature mesophilic 1 strain