Solanky, D. and S. E. Haydel. 2012. Adaptation of the neutral bacterial comet assay to assess antimicrobial-mediated DNA double-strand breaks in Escherichia coli. Journal of Microbiological Methods. 91:257-261.

Haydel, S. E., V. Malhotra, G. L. Cornelison, and J. E. Clark-Curtiss. 2012. The prrAB two-component system is essential for Mycobacterium tuberculosis viability and is induced during nitrogen-limiting conditions. Journal of Bacteriology. 194:354-361.

Pang, X., G. Cao, P. F. Neuenschwander, S. E. Haydel, G. Hou, and S. T. Howard. 2011. The b-propeller gene Rv1057 of Mycobacterium tuberculosis has a complex promoter directly regulated by both the MprAB and TrcRS two-component systems. Tuberculosis (Edinb). 91:S142-S149.

Otto, C. C. and S. E. Haydel. 2011. Morphology of mature Mycobacterium ulcerans colonies. ASM MicrobeLibrary 2.0.

R. Treuer and S. E. Haydel. 2011. Acid-fast staining and Petroff Hausser chamber counting of mycobacterial cells in liquid suspension. Current Protocols in Microbiology. 20:10A.6.1-10A.6.6. DOI: 10.1002/9780471729259.mc10a06s20.

Otto, C. C., T. M. Cunningham, M. R. Hansen, S. E. Haydel. 2010. Effects of antibacterial mineral leachates on the cellular ultrastructure, morphology, and membrane integrity of Escherichia coli and methicillin-resistant Staphylococcus aureus. Annals of Clinical Microbiology and Antimicrobials. 9:26 (13 pages).

S. E. Haydel. 2010. Extensively drug-resistant tuberculosis: a sign of the times and an impetus for antimicrobial discovery. Pharmaceuticals 3:2268-2290.

Cunningham, T. M., J. L. Koehl, J. S. Summers, and S. E. Haydel. 2010. pH-dependent metal ion toxicity influences the antibacterial activity of two natural mineral mixtures. PLoS ONE 5(3):e9456 (9 pages). doi:10.1371/journal.pone.0009456

Williams, L. B. and S. E. Haydel. 2010. Evaluation of the medicinal use of clay minerals as antibacterial agents. International Geology Review 52:745-770.

Williams, L. B., S. E. Haydel, R. E. Ferrell. 2009. Bentonite, bandaids, and borborygmi. Elements 5:99-105.

Williams, L. B., S. E. Haydel, R. F. Giese, Jr., D. D. Eberl. 2008. Chemical and mineralogical characteristics of French green clays used for healing. Clays and Clay Minerals 56:437-452.

Haydel, S. E., C. M. Remenih, L. B. Williams. 2008. Broad-spectrum in vitro antibacterial activities of clay minerals against antibiotic-susceptible and antibiotic-resistant bacterial pathogens. Journal of Antimicrobial Chemotherapy 61:353-361.

Haydel, S. E. and J. E. Clark-Curtiss. 2006. The Mycobacterium tuberculosis TrcR response regulator represses transcription of the intracellularly-expressed Rv1057 gene, encoding a seven-bladed β-propeller. Journal of Bacteriology 188:150-159.

Haydel, S. E. and J. E. Clark-Curtiss. 2004. Global expression analysis of two-component system regulators during Mycobacterium tuberculosis growth in human macrophages. FEMS Microbiology Letters 236:341-347.

Clark-Curtiss, J. E. and S. E. Haydel. 2003. Molecular genetics of Mycobacterium tuberculosis pathogenesis. Annual Review of Microbiology 57:517-549.

Haydel, S. E., W. H. Benjamin, Jr., N. E. Dunlap, J. E. Clark-Curtiss. 2002. Expression, autoregulation, and DNA binding properties of the Mycobacterium tuberculosis TrcR response regulator. Journal of Bacteriology 184:2192-2203.

Haydel, S. E., N. E. Dunlap, W. H. Benjamin, Jr. 1999. In vitro evidence of two-component system phosphorylation between the Mycobacterium tuberculosis TrcR/TrcS proteins. Microbial Pathogenesis 26:195-206.

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