An Integrated Miniaturized Metabologenomics Workflow for High-Throughput Actinomycetes Prioritization

A miniaturized metabologenomics workflow screened 80 soil-derived actinomycetes and identified seven isolates active against MRSA, Enterococcus faecium, or both.

• Why it matters: Antibiotic resistance is rising, but finding new antimicrobials is slowed by labor-intensive cultivation, extraction, and screening steps.
• What they did: The workflow used Duetz system-based microfermentation with extraction-free UHPLC-HRMS/MS profiling of cell-free filtrates, combined with antibacterial screening and genome mining. It cut LC-MS-ready sample prep from typically 5 days to approximately 20 min and reduced culture-medium use by ~99% and recurring consumable costs by ~96% versus a conventional workflow.
• The result: Integrated antibacterial, metabolomic, and genomic data enabled annotation of multiple metabolite families (validated with commercial standards), supporting scalable strain prioritization and natural product discovery.

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