Biosynthetic Gene Clusters from Swine Gut Microbiome

Abstract

The abuse of antibiotics has become a serious health challenge in the veterinary field. It creates environmental selection pressure on bacteria and facilitates the rapid spread of antibiotic resistance genes. The speed of discovery and application of cost-effective alternatives to antibiotics is slow in pig production. Natural products from biosynthetic gene clusters (BGCs) represent promising therapeutic agents for animal and human health and have attracted extraordinary passion from researchers due to their ability to participate in biofilm inhibition, stress resistance, and the killing of competitors. In this study, we detected the presence of diverse secondary metabolite genes in porcine intestines through sequence alignment in the antiSMASH database. After comparing variations in microbial BGCs’ composition between the ileum and the colon, it was found that the abundance of the resorcinol gene cluster was elevated in the ileal microbiome, whereas the gene cluster of arylpolyene was enriched in the colonic microbiome. The investigation of BGCs’ diversity and composition differences between the ileal and colonic microbiomes provided novel insights into further utilizing BGCs in livestock. The importance of BGCs in gut microbiota deserves more attention for promoting healthy swine production.

Comparative metagenomic analysis provides novel insights into the ecophysiology of Myxococcota in activated sludge systems

“…Aryl polyenes, which are structurally similar to carotenoids, have also been reported to protect cells from damage caused by reactive oxygen species and promote biofilm formation by EPS in E. coli . EPS production by M. xanthus is important for smooth S cell movement and colony formation (Johnston et al, 2021; L. Wang et al, 2023). These results suggest that Myxococcota in activated sludge use bacteriocins during OME to avoid grouping with different species and promote EPS production.…”

Lactobacillus rhamnosus GG ameliorates hyperuricemia in a novel model

“…Natural products from the gut microbial biosynthetic gene cluster represent promising therapeutic agents for animal and human health 48 . Combined with the whole-genome sequencing analysis and metabolomics analysis of extra- and intracellular LGG, we found that the extracellular proline level in LGG was increased under nucleoside pressure by proline excretion genes ( proW , proV ).…”

Identification of peptides from honeybee gut symbionts as potential antimicrobial agents against Melissococcus plutonius

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