{
  "$schema": "https://themachinepress.com/schemas/story-v1.schema.json",
  "schema_version": "1.0.0",
  "document_type": "machine_press_story",
  "story": {
    "story_id": "mp-2026-08-02-016",
    "source_story_id": "tmp-sidebar-xylem-fluorescent-probes",
    "edition_id": "mp-2026-08-02-morning-0024",
    "edition_url": "https://themachinepress.com/edition/2026-08-02",
    "position": 18,
    "story_type": "ticker",
    "section": "research",
    "editorial_classification": "editorial",
    "headline": "Plant Plumbing Needed Fifteen Times Less Dye",
    "slug": "plant-plumbing-needed-fifteen-times-less-dye",
    "dek": "Two pyridinium probes selectively illuminated xylem at far lower concentration than a common stain.",
    "summary": "Two pyridinium probes selectively illuminated xylem at far lower concentration than a common stain.",
    "body_text": "IIT Gandhinagar and Regional Centre for Biotechnology researchers tested probes C1 and C3 across three plants. They produced sharper xylem contrast at 25 micromolar versus 375 micromolar for propidium iodide, reducing background and photobleaching; live-tissue adaptation remains future work.",
    "why_it_matters": "Two pyridinium probes selectively illuminated xylem at far lower concentration than a common stain.",
    "limitations": [],
    "importance": 6,
    "canonical_url": "https://themachinepress.com/story/mp-2026-08-02-016/plant-plumbing-needed-fifteen-times-less-dye",
    "json_url": "https://themachinepress.com/story/mp-2026-08-02-016.json",
    "first_published_at": "2026-08-02T09:00:00.000-04:00",
    "modified_at": "2026-08-02T09:00:00.000-04:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
    "key_claims": [
      {
        "claim_id": "claim-mp-2026-08-02-016-001",
        "text": "Two pyridinium probes selectively illuminated xylem at far lower concentration than a common stain.",
        "source_ids": [
          "source-2026-08-02-018"
        ],
        "qualification": null
      }
    ],
    "source_ids": [
      "source-2026-08-02-018"
    ],
    "tags": [
      "plants",
      "xylem",
      "fluorescence",
      "microscopy"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-08-02-018",
      "title": "Plant and Cell Physiology: pyridinium probes for xylem",
      "publisher": "Plant and Cell Physiology",
      "url": "https://doi.org/10.1093/pcp/pcag084",
      "canonical_url": "https://doi.org/10.1093/pcp/pcag084",
      "source_type": "secondary_reporting",
      "is_primary_source": false,
      "published_at": null,
      "accessed_at": "2026-08-02T08:28:19.398-04:00",
      "supports_claim_ids": [
        "claim-mp-2026-08-02-016-001"
      ]
    }
  ],
  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "Plant Plumbing Needed Fifteen Times Less Dye",
    "publisher": "The Machine Press",
    "published_at": "2026-08-02T09:00:00.000-04:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-08-02-016/plant-plumbing-needed-fifteen-times-less-dye"
  }
}