Overview
- External ontology
- TOGO:M2075 — Halo 2a
- Applications
-
- Microbial cultivation
- High-metal flag
- True
- Notes
- Source: https://togomedium.org/medium/M2075 Original source: NBRC - NBRC_M1383 Original URL: https://www.nite.go.jp/nbrc/catalogue/NBRCMediumDetailServlet?NO=1383
Composition
flowchart LR
CultureMech_008664["halo_2a"]
ing0_Distilled_water["Distilled water"]
CultureMech_008664 --> ing0_Distilled_water
CHEBI_15377["CHEBI:15377"]
ing0_Distilled_water -.-> CHEBI_15377
ing1_MgSO4_7H2O["MgSO4·7H2O"]
CultureMech_008664 --> ing1_MgSO4_7H2O
CHEBI_31795["CHEBI:31795"]
ing1_MgSO4_7H2O -.-> CHEBI_31795
ing2_NaCl["NaCl"]
CultureMech_008664 --> ing2_NaCl
CHEBI_26710["CHEBI:26710"]
ing2_NaCl -.-> CHEBI_26710
ing3_CaCl2_2H2O["CaCl2·2H2O"]
CultureMech_008664 --> ing3_CaCl2_2H2O
CHEBI_86158["CHEBI:86158"]
ing3_CaCl2_2H2O -.-> CHEBI_86158
ing4_NH4Cl["NH4Cl"]
CultureMech_008664 --> ing4_NH4Cl
CHEBI_31206["CHEBI:31206"]
ing4_NH4Cl -.-> CHEBI_31206
ing5_K2HPO4["K2HPO4"]
CultureMech_008664 --> ing5_K2HPO4
CHEBI_131527["CHEBI:131527"]
ing5_K2HPO4 -.-> CHEBI_131527
ing6_KCl["KCl"]
CultureMech_008664 --> ing6_KCl
CHEBI_32588["CHEBI:32588"]
ing6_KCl -.-> CHEBI_32588
ing7_Sodium_glutamate["Sodium glutamate"]
CultureMech_008664 --> ing7_Sodium_glutamate
CHEBI_64220["CHEBI:64220"]
ing7_Sodium_glutamate -.-> CHEBI_64220
ing8_Trisodium_citrate["Trisodium citrate"]
CultureMech_008664 --> ing8_Trisodium_citrate
CHEBI_53258["CHEBI:53258"]
ing8_Trisodium_citrate -.-> CHEBI_53258
ing9_Agar__if_needed_["Agar (if needed)"]
CultureMech_008664 --> ing9_Agar__if_needed_
ing10_Bacto_Yeast_Extract__Difco_["Bacto Yeast Extract (Difco)"]
CultureMech_008664 --> ing10_Bacto_Yeast_Extract__Difco_
ing11_Casamino_acids["Casamino acids"]
CultureMech_008664 --> ing11_Casamino_acids
ing12_Na2MoO4_2H2O["Na2MoO4·2H2O"]
CultureMech_008664 --> ing12_Na2MoO4_2H2O
CHEBI_75213["CHEBI:75213"]
ing12_Na2MoO4_2H2O -.-> CHEBI_75213
ing13_H3BO3["H3BO3"]
CultureMech_008664 --> ing13_H3BO3
CHEBI_33118["CHEBI:33118"]
ing13_H3BO3 -.-> CHEBI_33118
ing14_MnCl2_4H2O["MnCl2·4H2O"]
CultureMech_008664 --> ing14_MnCl2_4H2O
CHEBI_86368["CHEBI:86368"]
ing14_MnCl2_4H2O -.-> CHEBI_86368
ing15_CoCl2_6H2O["CoCl2·6H2O"]
CultureMech_008664 --> ing15_CoCl2_6H2O
CHEBI_35696["CHEBI:35696"]
ing15_CoCl2_6H2O -.-> CHEBI_35696
ing16_NiCl2_6H2O["NiCl2·6H2O"]
CultureMech_008664 --> ing16_NiCl2_6H2O
CHEBI_34887["CHEBI:34887"]
ing16_NiCl2_6H2O -.-> CHEBI_34887
ing17_CuCl2_2H2O["CuCl2·2H2O"]
CultureMech_008664 --> ing17_CuCl2_2H2O
CHEBI_86318["CHEBI:86318"]
ing17_CuCl2_2H2O -.-> CHEBI_86318
ing18_ZnCl2["ZnCl2"]
CultureMech_008664 --> ing18_ZnCl2
CHEBI_49976["CHEBI:49976"]
ing18_ZnCl2 -.-> CHEBI_49976
ing19_FeCl3_6H2O["FeCl3·6H2O"]
CultureMech_008664 --> ing19_FeCl3_6H2O
CHEBI_86254["CHEBI:86254"]
ing19_FeCl3_6H2O -.-> CHEBI_86254
ing20_Nitrilotriacetic_acid__NTA_["Nitrilotriacetic acid (NTA)"]
CultureMech_008664 --> ing20_Nitrilotriacetic_acid__NTA_
CHEBI_44557["CHEBI:44557"]
ing20_Nitrilotriacetic_acid__NTA_ -.-> CHEBI_44557
ing21_NaOH["NaOH"]
CultureMech_008664 --> ing21_NaOH
CHEBI_32145["CHEBI:32145"]
ing21_NaOH -.-> CHEBI_32145
Ingredients (22)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 |
Distilled water
H2O 18.015 g/mol
|
1.0 G_PER_L |
CHEBI:15377
water
|
Role: Solvating media; Properties: Inorganic compound, Defined component, Simple component [Collapsed 2 identical duplicates: 1.0, 1.0] |
| 2 |
MgSO4·7H2O
7H2O.Mg.O4S 246.473 g/mol
|
50 G_PER_L |
CHEBI:31795
magnesium sulfate heptahydrate
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component |
| 3 |
NaCl
Cl.Na 58.443 g/mol
|
201.0 G_PER_L |
CHEBI:26710
sodium chloride
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component [Merged 2 duplicates: 200.0, 1.0] |
| 4 |
CaCl2·2H2O
Ca.2Cl.2H2O 147.014 g/mol
|
0.25 G_PER_L |
CHEBI:86158
calcium chloride dihydrate
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component [Merged 2 duplicates: 0.15, 0.1] |
| 5 |
NH4Cl
Cl.H4N 53.492 g/mol
|
1 G_PER_L |
CHEBI:31206
ammonium chloride
|
Role: Nitrogen source; Properties: Inorganic compound, Defined component, Simple component |
| 6 |
K2HPO4
HO4P.2K 174.174 g/mol
|
0.3 G_PER_L |
CHEBI:131527
dipotassium hydrogen phosphate
|
Role: Buffer; Properties: Inorganic compound, Defined component, Simple component |
| 7 |
KCl
Cl.K 74.551 g/mol
|
2 G_PER_L |
CHEBI:32588
potassium chloride
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component |
| 8 |
Sodium glutamate
C5H8NO4.Na 169.112 g/mol
|
1 G_PER_L |
CHEBI:64220
monosodium glutamate
|
Role: Nitrogen source; Properties: Organic compound, Defined component, Simple component |
| 9 |
Trisodium citrate
C6H5O7.3Na 258.069 g/mol
|
1 G_PER_L |
CHEBI:53258
sodium citrate
|
Role: Buffer; Properties: Organic compound, Defined component, Simple component |
| 10 | Agar (if needed) | 20 G_PER_L | Role: Solidifying component | |
| 11 | Bacto Yeast Extract (Difco) | 2 G_PER_L | Properties: Undefined component | |
| 12 | Casamino acids | 2 G_PER_L | Properties: Undefined component | |
| 13 |
Na2MoO4·2H2O
2H2O.MoO4.2Na 241.946 g/mol
|
0.024 G_PER_L |
CHEBI:75213
sodium molybdate dihydrate
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component |
| 14 |
H3BO3
H3BO3 61.833 g/mol
|
0.01 G_PER_L |
CHEBI:33118
boric acid
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component |
| 15 |
MnCl2·4H2O
Cl2Mn.4H2O 197.904 g/mol
|
0.1 G_PER_L |
CHEBI:86368
manganese(II) chloride tetrahydrate
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component |
| 16 |
CoCl2·6H2O
2Cl.Co 129.839 g/mol
|
0.024 G_PER_L |
CHEBI:35696
cobalt dichloride
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component |
| 17 |
NiCl2·6H2O
Cl2Ni 129.599 g/mol
|
0.12 G_PER_L |
CHEBI:34887
nickel dichloride
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component |
| 18 |
CuCl2·2H2O
Cl2Cu.2H2O 170.482 g/mol
|
0.025 G_PER_L |
CHEBI:86318
copper(II) chloride dihydrate
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component |
| 19 |
ZnCl2
2Cl.Zn 136.296 g/mol
|
0.1 G_PER_L |
CHEBI:49976
zinc dichloride
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component |
| 20 |
FeCl3·6H2O
Cl3Fe.6H2O 270.294 g/mol
|
1.35 G_PER_L |
CHEBI:86254
iron trichloride hexahydrate
|
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component |
| 21 |
Nitrilotriacetic acid (NTA)
C6H9NO6 191.139 g/mol
|
12.8 G_PER_L |
CHEBI:44557
nitrilotriacetic acid
|
Role: Mineral source; Properties: Organic compound, Defined component, Simple component |
| 22 |
NaOH
HO.Na 39.997 g/mol
|
variable VARIABLE |
CHEBI:32145
sodium hydroxide
|
Properties: Defined component, Inorganic compound, Solution |
Solutions
Trace elements solution*
Dose: 2 G_PER_L
See mediadive_6129_Trace_elements_solution.yaml for composition
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-27T06:35:59.005294Z | togo-import | Imported from TOGO Medium | Source: NBRC, ID: M2075 |
| 2026-01-28T19:48:29.898716Z | chebi-enrichment | Added CHEBI ontology terms to ingredients | Enriched using MicrobeMediaParam and MediaDive chemical mappings |
| 2026-02-03T00:00:00+00:00 | schema-defaulter-v1.0 | Applied schema defaults and normalizations | Added default concentration for ingredient: NaOH |
| 2026-03-09T08:04:49.709890+00:00 | solution-migrator-v1.0 | Migrated solutions from ingredients to solutions array | Moved 1 solution(s) from ingredients |
| 2026-03-13T03:09:20.877624Z | data-quality-cleanup-v1.0 | Data quality fixes | Merged 3 duplicate ingredient(s) |
| 2026-03-13T06:19:59.183028Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:008664 |
| 2026-03-14T00:00:00+00:00 | schema-defaulter-v1.0 | Applied schema defaults and normalizations | Added default solution name |
| 2026-03-17T06:30:29.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:46:17.814188+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "Halo 2a" to "halo_2a" for consistent matching |
| 2026-05-16T09:03:36.396360+00:00 | migrate_legacy_fields.py | MIGRATED_LEGACY_FIELDS | curation_history.date->timestamp=2 |
| 2026-06-05T07:41:07.290377+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 18 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-06-08T23:19:39.523675+00:00 | chebi-regrounding-v1.0 | Corrected CHEBI ingredient grounding (shared-id regrounding audit, G21/G22/G24) | Part of the shared-id CHEBI regrounding audit (G21/G22/G24): one or more ingredient groundings on this record that had been collapsed onto a chemically non-specific or shared CHEBI id were re-grounded to the correct chemically-specific term, verified against OAK chebi.db rdfs:label. See reports/chebi_grounding_audit.md. |
| 2026-06-10T06:57:47.988113+00:00 | mgso4-heptahydrate-term-fix-v1.0 | Corrected MgSO4·7H2O primary term grounding to heptahydrate | Re-grounded 1 heptahydrate-labelled ingredient(s) from CHEBI:32599 (generic magnesium sulfate) to CHEBI:31795 (magnesium sulfate heptahydrate). Generic/hexahydrate labels untouched. |
| 2026-06-10T07:46:59.358117+00:00 | primary-term-label-canonicalization-v1.0 | Canonicalized primary term label to OBO canonical (OAK) | 3 primary term(s); ingredient name resolved by OAK sqlite:obo:chebi. |
| 2026-09-02T07:38:09.929288+00:00 | repair_merged_duplicates.py | REPAIRED_SUMMED_DUPLICATE_MERGE | Collapsed 1 ingredient row(s) whose concentration was the SUM of identical duplicate values written by cleanup_media_quality.py. Every merged part was the same value, so the pre-merge value is unambiguous and no source lookup was needed. Rows whose merged parts differ were left untouched. |