Overview
- External ontology
- UTEX:soilwater-gr-minus-nh4-medium (source link unavailable) — Soilwater: GR-/NH4 Medium
- Applications
-
- Algae cultivation
- Phytoplankton culture
- Microalgae research
- pH
- 7.3
- Notes
- UTEX prepares this ammonium magnesium phosphate variant by adding 1 mg NH4MgPO4 to 200 mL prepared Soilwater: GR- Medium after pasteurizing.
Composition
flowchart LR
CultureMech_000228["soilwater_gr_nh4_medium"]
ing0_NH4MgPO4["NH4MgPO4"]
CultureMech_000228 --> ing0_NH4MgPO4
CHEBI_149425["CHEBI:149425"]
ing0_NH4MgPO4 -.-> CHEBI_149425
Ingredients (1)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 |
NH4MgPO4
H4N.Mg.O4P 137.314 g/mol
Sigma 529354
|
0.04 MILLIMOLAR |
CHEBI:149425
ammonium magnesium phosphate
|
UTEX lists 1 mg NH4MgPO4 per 200 mL final medium; final 0.04 mM. |
Preparation
- Prepare Soilwater: GR- Medium.
- Add a pinch of NH4MgPO4 after pasteurizing.
Solutions
Soilwater: GR- Medium
Dose: 1000 ML_PER_L
UTEX lists 200 mL prepared Soilwater: GR- Medium per 200 mL recipe.
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-28T00:00:00+00:00 | utex-import | Imported from UTEX Culture Collection | Source ID: soilwater-gr-minus-nh4-medium, URL: https://utex.org/products/soilwater-gr-minus-nh4-medium |
| 2026-03-13T06:18:53.633957Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:000228 |
| 2026-03-17T19:45:04.548134+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "Soilwater: GR-/NH4 Medium" to "soilwater_gr_nh4_medium" for consistent matching |
| 2026-05-16T09:02:56.124839+00:00 | migrate_legacy_fields.py | MIGRATED_LEGACY_FIELDS | curation_history.date->timestamp=1; references.reference_id->reference=2; category->lowercase=1 |
| 2026-05-16T09:11:01.338686+00:00 | migrate_preparation_steps.py | MIGRATED_PREPARATION_STEPS | instruction->action+description for 9 step(s) |
| 2026-08-30T00:58:30.988263+00:00 | repair_utex_ingredients.py | REPAIRED_UTEX_COMPOSITION | Restored 2 ingredient name(s) and amount(s) from a re-fetched UTEX capture. The original fetcher read fixed column positions, so the row ordinal was stored as the ingredient name, the component name as the amount, and the Amount column was never read; concentration was then filled in as G_PER_L regardless. Source: https://utex.org/pages/algal-culture-media, captured 2026-08-29T17:46:40.207779. |
| 2026-09-06T00:00:00-07:00 | repair_utex_remaining_score50.py | RESOLVED_UTEX_SCORE50_ALGAE_GRAPH | UTEX prepares this ammonium magnesium phosphate variant by adding 1 mg NH4MgPO4 to 200 mL prepared Soilwater: GR- Medium after pasteurizing. |