mycoplasma_medium

CultureMech:010196 bacterial COMPLEX SOLID_AGAR
Original name: Mycoplasma Medium

Overview

External ontology
TOGO:M787 — Mycoplasma Medium
Applications
  • Microbial cultivation
pH range
{'min': 7.2, 'max': 7.6}
Notes
MediaDive J761 and TOGO M787 describe JCM Medium 761 Mycoplasma Medium as a 1.0 L solid agar medium containing 700.0 ml distilled water, 17.5 g Heart Infusion Broth, 10.0 g Bacto agar, 200.0 ml heat-inactivated horse serum, and 100.0 ml 25% Yeast Extract Solution.

Composition

flowchart LR
    CultureMech_010196["mycoplasma_medium"]
    ing0_Distilled_water["Distilled water"]
    CultureMech_010196 --> ing0_Distilled_water
    CHEBI_15377["CHEBI:15377"]
    ing0_Distilled_water -.-> CHEBI_15377
    ing1_Heart_Infusion_Broth["Heart Infusion Broth"]
    CultureMech_010196 --> ing1_Heart_Infusion_Broth
    ing2_Agar["Agar"]
    CultureMech_010196 --> ing2_Agar
    CHEBI_2509["CHEBI:2509"]
    ing2_Agar -.-> CHEBI_2509
    ing3_Horse_serum["Horse serum"]
    CultureMech_010196 --> ing3_Horse_serum

Ingredients (4)

# Ingredient Concentration Ontology Notes
1 Distilled water
H2O 18.015 g/mol
700.0 ML_PER_L CHEBI:15377
water
TOGO M787 / JCM Medium 761 contributes 700.0 ml/L distilled water.
2 Heart Infusion Broth 17.5 G_PER_L TOGO M787 / JCM Medium 761 lists 17.5 g/L Heart Infusion Broth from BD-Difco.
3 Agar 10.0 G_PER_L CHEBI:2509
agar
TOGO M787 / JCM Medium 761 lists 10.0 g/L Bacto agar from BD-Difco.
4 Horse serum 200.0 ML_PER_L TOGO M787 / JCM Medium 761 adds 200.0 ml/L heat-inactivated horse serum.

Preparation

  1. Dissolve Heart Infusion Broth and Agar in 700.0 ml/L distilled water.
  2. Autoclave the basal agar at 121 C for 15 min.
  3. Cool to 55 C and aseptically add 200.0 ml/L heat-inactivated horse serum and 100.0 ml/L filter-sterilized 25% Yeast Extract Solution warmed to 55 C.
  4. Adjust final pH to 7.2-7.6.

Solutions

25% Yeast Extract Solution

Dose: 100.0 ML_PER_L

Stock composition
IngredientConcentrationNotes
Yeast extract 25.0 PERCENT_W_V TOGO M787 / JCM Medium 761 specifies 25% Yeast Extract Solution as 25.0% w/v.
TOGO M787 / JCM Medium 761 adds 100.0 ml/L 25% Yeast Extract Solution.

Target organisms

No target organisms are recorded.

Provenance

TimestampCuratorActionNotes
2026-01-27T06:35:55.714727Z togo-import Imported from TOGO Medium Source: JCM, ID: M787
2026-01-28T19:48:07.423575Z chebi-enrichment Added CHEBI ontology terms to ingredients Enriched using MicrobeMediaParam and MediaDive chemical mappings
2026-03-09T08:04:11.961349+00:00 solution-migrator-v1.0 Migrated solutions from ingredients to solutions array Moved 1 solution(s) from ingredients
2026-03-13T06:20:12.040747Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:010196
2026-03-14T00:00:00+00:00 schema-defaulter-v1.0 Applied schema defaults and normalizations Added default solution name
2026-03-17T06:29:40.000000Z mediaingredientmech-enrichment-v1.0 Added MediaIngredientMech links Linked ingredients to MediaIngredientMech identifiers
2026-03-17T19:46:30.979104+00:00 normalize_media_names_to_snake_case.py NAME_NORMALIZED Normalized name from "Mycoplasma Medium" to "mycoplasma_medium" for consistent matching
2026-05-16T09:03:20.888520+00:00 migrate_legacy_fields.py MIGRATED_LEGACY_FIELDS curation_history.date->timestamp=1
2026-06-05T07:40:44.459902+00:00 mim-legacy-to-chebi-migration-v1.0 Refreshed legacy MediaIngredientMech links to CHEBI keying Replaced 1 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme.
2026-09-11T00:00:00-07:00 repair_togo_m787_mycoplasma_score15.py RESOLVED_TOGO_M787_MYCOPLASMA_MEDIUM Moved 25% Yeast Extract Solution from an empty solution stub into a structured stock solution, corrected water, horse serum, and yeast-extract stock units, added the final pH range, and linked the MediaDive J761 source duplicate.