Abstract:The mammalian microbiome encodes numerous secondary metabolite biosynthetic gene clusters, yet their role in microbe-microbe interactions is unclear. Here, we characterized two polyketide synthase gene clusters (fun and pks) in the gut symbiont Limosilactobacillus reuteri. The pks, but not the fun cluster, encodes antimicrobial activity. Forty-one out of 51 L. reuteri strains tested are sensitive to Pks products, which was independent of strains host origin. The sensitivity to Pks was also established in intra… Show more
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