ArticleNPJ biofilms and microbiomes2025
M.marinum lacking epsH shows increased biofilm formation in vitro and boosted antibiotic tolerance in zebrafish.
Article in NPJ biofilms and microbiomes, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Transposon mutant library reveals the complex regulatory network of biofilm formation inBiofilm · 2026Article
- A photoactivation-free viability PCR reagent for rapid, culture-independent detection of live bacteria.Microbiology spectrum · 2026Article
- Biofilm Associated Persistence and Drug Tolerance in Mycobacteria Within Host Microenvironments.APMIS : acta pathologica, microbiologica, et immunologica Scandinavica · 2026Review
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10 authors.
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Abstract
Recent discoveries have indicated that biofilm communities may play a role in natural drug tolerance of Mycobacterium tuberculosis. A transposon-based mutation library of a closely related species, Mycobacterium marinum, was used to identify clones in which the relative amount of extracellular DNA (eDNA), an important component of the extracellular matrix of biofilms, is altered. The disruption of a putative glycosyl transferase gene QDR78 11175, epsH, caused a substantial increase of the eDNA content of biofilms, and increased the growth rate and the biomass/cell in biofilm-forming conditions compared to wild-type. The increased abundance of biomass was mainly due to the elevated levels of eDNA and proteins in the extracellular matrix. The growth of the ΔepsH strain in the zebrafish was normal, but the mutant developed greater antibiotic tolerance in the adult zebrafish model. These results suggest that the extracellular matrix of biofilms increases antibiotic tolerance of mycobacteria during infection.
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