{
  "id": 18177744,
  "title": "Sarrella massiliensis gen. nov. sp. nov., a new gut genus isolated from the stool of a healthy donor",
  "url": "https://urgent.news/2026/11/04/sarrella-massiliensis-gen-nov-sp-nov-a-new-gut-genus-isolated-from",
  "topic": "science",
  "section": "Science",
  "published": "2026-11-04T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.11.03.764080v1?rss=1"
  },
  "original_language": "en",
  "account": "A novel gut genus, Sarrella massiliensis gen. nov., sp. nov., has been isolated from the stool of a healthy donor through the culturomics method. The strain, identified as Gram-stain-negative, rod-shaped, non-motile, and non-spore-forming, thrives optimally at 37°C in an anaerobic environment. The strain shows a high 16S rRNA sequence identity (96.2%) with Merdibacter massiliensis strain Marseille-P3254, though it lacks a valid publication. Additionally, it shares a notable 75.0% average nucleotide identity (ANI) with the same species. In comparison to validly published species, it demonstrates a 91.5% 16S rRNA sequence similarity to Faecalicoccus acidiformans strain 37-2a, although no ANI values exceed 75%. Genome sequencing confirms a genome size of 2.67 Mb and a G+C content of 50.01%. Classified within the Erysipelotrichaceae family of the Bacillota phylum, this marks the first time a new genus, Sarrella massiliensis gen. nov., has been identified. This discovery underscores the significance of ongoing culturomics efforts to delve deeper into the human microbiome.",
  "summary": "Strain Marseille-QA0792 (=CSUR QA0792, CECT 31199) was isolated from the feces of a healthy person using the culturomics method. The fecal sample originated from leftover material collected for a fecal microbiota transplantation (FMT) procedure, obtained during a routine screening in accordance with the guidelines of the French National Agency for Medicines and Health Products Safety (ANSM). This…",
  "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."
}