{
  "id": 19633769,
  "title": "Heat-induced increases in xylem vulnerability: Experimental evidence and possible mechanisms",
  "url": "https://urgent.news/2026/11/12/heat-induced-increases-in-xylem-vulnerability-experimental-evidence",
  "topic": "science",
  "section": "Science",
  "published": "2026-11-12T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.11.05.764619v1?rss=1"
  },
  "original_language": "en",
  "account": null,
  "summary": "Hotter droughts driven by global warming are increasing tree mortality worldwide. Here, we propose a theoretical framework that explains how dissolved gas affects the stability of bubbles in xylem sap, and shows that in the presence of gas, sudden increases in temperature can accelerate embolism formation. We then provide experimental evidence that heat exposure can change xylem vulnerability to…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}