mjy_medium_for_pyrolinea_marinus

CultureMech:010130 bacterial COMPLEX LIQUID
Original name: MJY Medium For Pyrolinea Marinus

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

  1. 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.
  2. 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.
  3. Pressurize the culture vessels to 200 kPa N2-CO2 (4:1, v/v) and check the final pH at 6.0-6.5.
  4. 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

Stock composition
IngredientConcentrationNotes
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

Stock composition
IngredientConcentrationNotes
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

Stock composition
IngredientConcentrationNotes
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

TimestampCuratorActionNotes
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.