{
  "id": 10531919,
  "title": "Whole-Genome Metagenomics Insights Revealed a Uranium Bio-remediating Cross-Domain Microbiome in the Dhala Impact Structure, India",
  "url": "https://urgent.news/2026/09/28/whole-genome-metagenomics-insights-revealed-a-uranium-bio-remediating",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-28T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.09.26.754616v1?rss=1"
  },
  "original_language": "en",
  "account": "Meteorite impact structures on Earth serve as unique terrestrial analogues for extreme planetary environments. The Dhala impact structure in north-central India, formed during a hypervelocity impact, is characterized by uranium-bearing impactites and exhibits exceptionally high uranium concentrations (up to 99.5 ppm). This makes it an ideal natural laboratory to study microbial adaptation to radioactive and metal-rich geological settings. The first comprehensive, whole-genome metagenomic study of this unique ecosystem has revealed a resilient and highly specialized microbiome that includes bacteria, archaea, eukaryotes, and viruses. These diverse microorganisms have coevolved under prolonged radiological and metal stress, showcasing numerous metabolic adaptations for survival, homeostasis, and biomineralization. Functional metagenomic analysis uncovered 58 genes directly involved in uranium bioremediation, along with pathways for radionuclide reduction, cellular efflux, and biotransformation. The study also sheds light on the evolutionary relationships of biosphere-geosphere interactions within an ancient impact-generated ecosystem, highlighting the untapped potential of Dhala's extremophiles as a reservoir for eco-friendly, next-generation microbial bioremediation strategies. This unparalleled site offers significant implications for environmental geomicrobiology, microbial evolution, and astrobiology, as well as for addressing the challenges of uranium contamination and nuclear waste management.",
  "summary": "Meteorite impact structures on earth represent unique terrestrial analogues of extreme planetary environments where fractured lithologies, hydrothermal alteration, elevated concentrations of radionuclides, and prolonged water-rock interactions create ecological niches for specialized microbial communities. The Palaeoproterozoic Dhala impact structure in north-central India is characterized by…",
  "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."
}