ArticleScientific reports2021
Extracellular DNA of slow growers of mycobacteria and its contribution to biofilm formation and drug tolerance.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
10 citing papers in PubMed, 17 citations in OpenAlex.
- Autoinducer 2 as a universal language in microbial consortia: decoding molecular mechanisms, ecological impacts, and application.Gut microbes · 2026Review
- Biofilm Associated Persistence and Drug Tolerance in Mycobacteria Within Host Microenvironments.APMIS : acta pathologica, microbiologica, et immunologica Scandinavica · 2026Review
- Intracellular glutamine fluctuates with nitrogen availability and regulatesJournal of bacteriology · 2025Article
- M.marinum lacking epsH shows increased biofilm formation in vitro and boosted antibiotic tolerance in zebrafish.NPJ biofilms and microbiomes · 2025Article
- Effective killing ofMicrobiology spectrum · 2025Article
- Editorial: Nontuberculous mycobacterial pulmonary disease: immunopathogenesis and immunological risk factors.Frontiers in immunology · 2025Article
- Mycobacterial Biofilm: Mechanisms, Clinical Problems, and Treatments.International journal of molecular sciences · 2024Review
- A laboratory perspective onFrontiers in microbiology · 2024Review
- Catheter-associated Mycobacterium intracellulare biofilm infection in C3HeB/FeJ mice.Scientific reports · 2023Article
- Healthcare-Associated Infections Caused by Mycolicibacterium neoaurum.Emerging infectious diseases · 2023Review
Corrections and comments
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Authors and funding
15 authors at 6 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
DNA is basically an intracellular molecule that stores genetic information and carries instructions for growth and reproduction in all cellular organisms. However, in some bacteria, DNA has additional roles outside the cells as extracellular DNA (eDNA), which is an essential component of biofilm formation and hence antibiotic tolerance. Mycobacteria include life-threating human pathogens, most of which are slow growers. However, little is known about the nature of pathogenic mycobacteria's eDNA. Here we found that eDNA is present in slow-growing mycobacterial pathogens, such as Mycobacterium tuberculosis, M. intracellulare, and M. avium at exponential growth phase. In contrast, eDNA is little in all tested rapid-growing mycobacteria. The physiological impact of disrupted eDNA on slow-growing mycobacteria include reduced pellicle formation, floating biofilm, and enhanced susceptibility to isoniazid and amikacin. Isolation and sequencing of eDNA revealed that it is identical to the genomic DNA in M. tuberculosis and M. intracellulare. In contrast, accumulation of phage DNA in eDNA of M. avium, suggests that the DNA released differs among mycobacterial species. Our data show important functions of eDNA necessary for biofilm formation and drug tolerance in slow-growing mycobacteria.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.