Overview
- External ontology
- TOGO:M722 — MJY Medium For Pyrolinea Marinus
- Applications
-
- Microbial cultivation
- pH range
- {'min': 6.0, 'max': 6.5}
- Notes
- MediaDive J700 and TOGO M721 describe JCM Medium 700 MJY Medium for Pyrolinea marinus as 1.0 L MJ(-N) synthetic seawater supplemented with 1.0 g/L Yeast extract, 0.25 g/L NH4Cl, and 0.5 g/L NaNO3; after anaerobic autoclaving, 5.0 ml/L 8% NaHCO3 and 10.0 ml/L 5% Na2S x 9 H2O solutions are added and the final pH is checked at 6.0-6.5. TOGO M722 additionally adds 20.0 ml/L Rumen fluid, clarified from TOGO M258/JCM Medium 266.
Composition
flowchart LR
CultureMech_010130["mjy_medium_for_pyrolinea_marinus"]
ing0_Yeast_extract["Yeast extract"]
CultureMech_010130 --> ing0_Yeast_extract
ing1_NH4Cl["NH4Cl"]
CultureMech_010130 --> ing1_NH4Cl
CHEBI_31206["CHEBI:31206"]
ing1_NH4Cl -.-> CHEBI_31206
ing2_NaNO3["NaNO3"]
CultureMech_010130 --> ing2_NaNO3
CHEBI_63005["CHEBI:63005"]
ing2_NaNO3 -.-> CHEBI_63005
Ingredients (3)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Yeast extract | 1.0 G_PER_L |
FOODON:03315426
yeast extract
|
TOGO M722 / JCM Medium 700-2 lists 1.0 g/L Yeast extract. |
| 2 |
NH4Cl
Cl.H4N 53.492 g/mol
|
0.25 G_PER_L |
CHEBI:31206
ammonium chloride
|
TOGO M722 / JCM Medium 700-2 lists 0.25 g/L NH4Cl. |
| 3 |
NaNO3
NO3.Na 84.994 g/mol
|
0.5 G_PER_L |
CHEBI:63005
sodium nitrate
|
TOGO M722 / JCM Medium 700-2 lists 0.5 g/L NaNO3. |
Preparation
- Mix 1.0 L MJ(-N) synthetic seawater, NH4Cl, NaNO3, and Yeast extract thoroughly; distribute the medium into culture vessels under a N2-CO2 (4:1, v/v) gas mixture, seal with butyl rubber stoppers, and autoclave.
- After cooling, add 5.0 ml/L 8% NaHCO3 solution and 10.0 ml/L 5% Na2S x 9 H2O solution that were filter-sterilized or autoclaved and stored anaerobically.
- Pressurize the culture vessels to 200 kPa N2-CO2 (4:1, v/v) and check the final pH at 6.0-6.5.
- MJ(-N) synthetic seawater can be replaced with a commercial synthetic seawater such as Jamarin S. For strain JCM 15506, inoculate with a 5-10% inoculum.
Solutions
MJ(-N) synthetic seawater
Dose: 1000.0 ML_PER_L
| Ingredient | Concentration | Notes |
|---|---|---|
| NaCl | 30.0 G_PER_L | TOGO M260 / JCM Medium 268 lists 30.0 g/L NaCl. |
| K2HPO4 | 0.14 G_PER_L | TOGO M260 / JCM Medium 268 lists 0.14 g/L K2HPO4. |
| CaCl2 x 2 H2O | 0.14 G_PER_L | TOGO M260 / JCM Medium 268 lists 0.14 g/L CaCl2 x 2 H2O. |
| MgSO4 x 7 H2O | 3.4 G_PER_L | TOGO M260 / JCM Medium 268 lists 3.4 g/L MgSO4 x 7 H2O. |
| MgCl2 x 6 H2O | 4.18 G_PER_L | TOGO M260 / JCM Medium 268 lists 4.18 g/L MgCl2 x 6 H2O. |
| KCl | 0.33 G_PER_L | TOGO M260 / JCM Medium 268 lists 0.33 g/L KCl. |
| NiCl2 x 6 H2O | 0.5 MG_PER_L | TOGO M260 / JCM Medium 268 lists 0.5 mg/L NiCl2 x 6 H2O. |
| Na2SeO3 x 5 H2O | 0.5 MG_PER_L | TOGO M260 / JCM Medium 268 lists 0.5 mg/L Na2SeO3 x 5 H2O. |
| Fe(NH4)2(SO4)2 x 6 H2O | 0.01 G_PER_L | TOGO M260 / JCM Medium 268 lists 0.01 g/L Fe(NH4)2(SO4)2 x 6 H2O. |
| Trace minerals | 10.0 ML_PER_L | TOGO M260/JCM Medium 268 adds 10.0 ml/L Trace minerals from TOGO M142. |
| Distilled water | 1.0 L | TOGO M260/JCM Medium 268 lists 1.0 L Distilled water. |
TOGO M722 / JCM Medium 700-2 adds 1.0 L MJ(-N) synthetic seawater from TOGO M260/JCM Medium 268.
8% NaHCO3 solution
Dose: 5.0 ML_PER_L
| Ingredient | Concentration | Notes |
|---|---|---|
| NaHCO3 | 8.0 PERCENT_W_V | TOGO M722 / JCM Medium 700-2 specifies the added NaHCO3 solution as 8% w/v. |
TOGO M722 / JCM Medium 700-2 adds 5.0 ml/L 8% NaHCO3 solution after cooling.
5% Na2S x 9 H2O solution
Dose: 10.0 ML_PER_L
| Ingredient | Concentration | Notes |
|---|---|---|
| Na2S x 9 H2O | 5.0 PERCENT_W_V | TOGO M722 / JCM Medium 700-2 specifies the added Na2S x 9 H2O solution as 5% w/v. |
TOGO M722 / JCM Medium 700-2 adds 10.0 ml/L 5% Na2S x 9 H2O solution after cooling.
Rumen fluid, clarified
Dose: 20.0 ML_PER_L
TOGO M722 adds 20.0 ml/L Rumen fluid, clarified from TOGO M258/JCM Medium 266 after cooling.
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-27T06:35:55.599740Z | togo-import | Imported from TOGO Medium | Source: JCM, ID: M722 |
| 2026-01-28T19:48:38.114578Z | 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: Carbon dioxide gas; Added default concentration for ingredient: Nitrogen gas; Added default concentration for ingredient: Carbon dioxide gas; Added default concentration for ingredient: Nitrogen gas |
| 2026-03-09T08:05:03.713273+00:00 | solution-migrator-v1.0 | Migrated solutions from ingredients to solutions array | Moved 4 solution(s) from ingredients |
| 2026-03-13T03:09:35.649395Z | data-quality-cleanup-v1.0 | Data quality fixes | Merged 2 duplicate ingredient(s) |
| 2026-03-13T06:20:11.551143Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:010130 |
| 2026-03-14T00:00:00+00:00 | schema-defaulter-v1.0 | Applied schema defaults and normalizations | Added default solution name; Added default solution name; Added default solution name; Added default solution name |
| 2026-03-17T06:30:46.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:46:30.482059+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "MJY Medium For Pyrolinea Marinus" to "mjy_medium_for_pyrolinea_marinus" for consistent matching |
| 2026-05-16T09:03:20.381358+00:00 | migrate_legacy_fields.py | MIGRATED_LEGACY_FIELDS | curation_history.date->timestamp=2 |
| 2026-06-05T07:40:43.896149+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 2 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-06-10T07:46:51.464817+00:00 | primary-term-label-canonicalization-v1.0 | Canonicalized primary term label to OBO canonical (OAK) | 1 primary term(s); ingredient name resolved by OAK sqlite:obo:chebi. |
| 2026-09-11T00:00:00-07:00 | repair_togo_m721_m722_score15.py | RESOLVED_TOGO_M722_MJY_RUMEN_MEDIUM | Moved MJ(-N) synthetic seawater, 8% NaHCO3, 5% Na2S x 9 H2O, and Rumen fluid, clarified from empty solution stubs into structured solution entries, removed gas placeholders in favor of anaerobic preparation steps, added the final pH range, and linked the MediaDive J700 base recipe. |