Justin Merritt

Dr. Merritt received his B.S. from University of Miami and PH. D. from University of California Los Angeles. He is now a professor of Restorative Dentistry at School of Dentistry. Research in his laboratory is focused upon the role of the microbome in human dysbiotic diseases. His team study the human oral microbiome as their model system to understand the connection between microbial ecology and symbiosis/dysbiosis at mucosal sites in the human body. The cariogenic species Streptococcus mutans is their primary organism of interest for genetic studies of microbiome pathobiology. However, their research also often includes a variety of other oral microbiome species, especially for studies of interspecies interactions among the oral microbiota. They are also interested in the mechanisms of synergistic pathogenesis that occur between different microbiome species during dysbiosis.

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School of Dentistry

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Dentistry 0 Microbiome 0 Symbiosis and dysbiosis 0 Biofilm 0 Bacterial genetics 0

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  1. Cheng, X., et al. "Magnesium-Dependent Promotion of H2O2 Production Increases Ecological Competitiveness of Oral Commensal Streptococci." Journal of dental research 99.7 (2020): 847-854.

  2. Treerat, Puthayalai, et al. "Synergism between Corynebacterium and Streptococcus sanguinis reveals new interactions between oral commensals." The ISME Journal 14.5 (2020): 1154-1169.

  3. Redanz, Sylvio, et al. "Pyruvate secretion by oral streptococci modulates hydrogen peroxide dependent antagonism." The ISME Journal 14.5 (2020): 1074-1088.

  4. Marx, Patrick, et al. "Environmental stress perception activates structural remodeling of extant Streptococcus mutans biofilms." NPJ biofilms and microbiomes 6.1 (2020): 1-11.

  5. Florez, Fernando Luis Esteban, et al. "Optimization of a real-time high-throughput assay for assessment of Streptococcus mutans metabolism and screening of antibacterial dental adhesives." Dental Materials 36.3 (2020): 353-365.

  6. Hao, Tingting, et al. "An anaerobic bacterium host system for heterologous expression of natural product biosynthetic gene clusters." Nature communications 10.1 (2019): 1-13.


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