Overview
- Notes
- Headspace gas: N2/CO2 (80:20) Vessel type: Anaerobic serum bottles with thick butyl rubber stoppers Modified DSM 120 medium with no yeast extract, Casitone, or resazurin. Specific composition: 0.5 mM sulfide, 1 mM cysteine, 0.002 g/L CaCl2·2H2O, 1 g/L NaCl, 2 g/L NaHCO3. Medium boiled to reduce oxygen, cooled under N2/CO2 gas mixture. Sulfide and cysteine essential for long-term M. barkeri cultivation. Initial cocultures: 0.5 ml each organism in 9 ml medium; later transfers: 10% inocula in 45 ml medium.
- Cross-Mech
- MediaIngredientMech · CommunityMech · TaxonMech · TraitMech · HabitatMech · CMMMech
Composition
flowchart LR
CultureMech_015434["modified_dsm_120_medium_for_diet_coculture"]
ing0_Ethanol["Ethanol"]
CultureMech_015434 --> ing0_Ethanol
CHEBI_16236["CHEBI:16236"]
ing0_Ethanol -.-> CHEBI_16236
ing1_Sodium_bicarbonate["Sodium bicarbonate"]
CultureMech_015434 --> ing1_Sodium_bicarbonate
CHEBI_32139["CHEBI:32139"]
ing1_Sodium_bicarbonate -.-> CHEBI_32139
ing2_Sodium_chloride["Sodium chloride"]
CultureMech_015434 --> ing2_Sodium_chloride
CHEBI_26710["CHEBI:26710"]
ing2_Sodium_chloride -.-> CHEBI_26710
ing3_Calcium_chloride_dihydrate["Calcium chloride dihydrate"]
CultureMech_015434 --> ing3_Calcium_chloride_dihydrate
CHEBI_86158["CHEBI:86158"]
ing3_Calcium_chloride_dihydrate -.-> CHEBI_86158
ing4_L_Cysteine["L-Cysteine"]
CultureMech_015434 --> ing4_L_Cysteine
CHEBI_17561["CHEBI:17561"]
ing4_L_Cysteine -.-> CHEBI_17561
ing5_Sodium_sulfide["Sodium sulfide"]
CultureMech_015434 --> ing5_Sodium_sulfide
CHEBI_76208["CHEBI:76208"]
ing5_Sodium_sulfide -.-> CHEBI_76208
Ingredients (6)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 |
Ethanol
C2H6O 46.069 g/mol
Cross-Mech: MediaIngredientMech · CMMMech
|
20.0 MILLIMOLAR |
CHEBI:16236
ethanol
|
|
| 2 |
Sodium bicarbonate
CHO3.Na 84.006 g/mol
Cross-Mech: MediaIngredientMech · CMMMech
|
2.0 G_PER_L |
CHEBI:32139
sodium hydrogencarbonate
|
|
| 3 |
Sodium chloride
Cl.Na 58.443 g/mol
Cross-Mech: MediaIngredientMech · CMMMech
|
1.0 G_PER_L |
CHEBI:26710
sodium chloride
|
|
| 4 |
Calcium chloride dihydrate
Ca.2Cl.2H2O 147.014 g/mol
Cross-Mech: MediaIngredientMech · CMMMech
|
0.002 G_PER_L |
CHEBI:86158
calcium chloride dihydrate
|
|
| 5 |
L-Cysteine
C3H7NO2S 121.161 g/mol
Cross-Mech: MediaIngredientMech · CMMMech
|
1.0 MILLIMOLAR |
CHEBI:17561
L-cysteine
|
|
| 6 |
Sodium sulfide
2Na.S 78.047 g/mol
Cross-Mech: MediaIngredientMech · CMMMech
|
0.5 MILLIMOLAR |
CHEBI:76208
sodium sulfide (anhydrous)
|
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-03-15T00:15:00.404953Z | communitymech-importer-v1.0 | Imported from CommunityMech | Created from CommunityMech:000033 growth_media record |
| 2026-03-17T19:46:34.315506+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "Modified DSM 120 Medium for DIET Coculture" to "modified_dsm_120_medium_for_diet_coculture" for consistent matching |
| 2026-05-24T04:38:33.274031+00:00 | backfill_source_environment.py | BACKFILLED_SOURCE_ENVIRONMENT | added=1 env(s) from CommunityMech |
| 2026-06-05T07:41:57.387718+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 5 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-09-13T00:00:00-07:00 | repair_communitymech_sources_score10_batch10.py | ADDED_COMMUNITYMECH_STRUCTURED_SOURCES_BATCH10 | Promoted CommunityMech upstream IDs into sources[] for source-provenance scoring. |