{
  "id": 12938198,
  "title": "High-fidelity long-read metagenomics reveals the metabolic functions of dominant termite gut bacteria",
  "url": "https://urgent.news/2026/10/08/high-fidelity-long-read-metagenomics-reveals-the-metabolic-functions",
  "topic": "science",
  "section": "Science",
  "published": "2026-10-08T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.10.06.756956v1?rss=1"
  },
  "original_language": "en",
  "account": "In a groundbreaking study, researchers employed PacBio HiFi long-read sequencing to decipher the metabolic capabilities of the gut bacteria residing within wood-feeding termites. From an extensive dataset of 13.9 Gb, the team successfully constructed highly contiguous bacterial genomes, featuring eleven Breznakiellaceae, two Candidatus Fibrimonas, and one Chitinispirillaceae genome. These genomes encoded an extensive array of carbohydrate-active enzymes and anaerobic fermentation pathways, demonstrating their role in breaking down lignocellulose. Additionally, the genomes harbored genes for essential amino acid biosynthesis, while nitrogen fixation was present in representatives of all three dominant lineages, albeit with varying degrees among closely related strains. One Breznakiellaceae genome even harbored a complete Wood-Ljungdahl pathway, which could potentially facilitate reductive acetogenesis in the presence of external formate. The study highlights the ability of HiFi metagenomics to uncover lineage-specific metabolic functions of dominant termite gut symbionts, providing valuable insights into the complex ecology of these insects.",
  "summary": "Many termites digest lignocellulosic wood using diverse gut microbiota, yet functions are rarely linked to specific symbionts because complete genomes are scarce. We used PacBio HiFi long reads to reconstruct circular single-contig bacterial metagenome-assembled genomes (MAGs) from the gut microbiota of the wood-feeding termite Nasutitermes takasagoensis. From 13.9 Gb of HiFi data, we obtained…",
  "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."
}