- "Production of methanethiol and volatile sulfur compounds by the archaeon "Ferroplasma acidarmanus"
Baumler DJ, Hung KF, Jeong KC, et al., Extremophiles 11 (6): 841-851 Nov 2007. Collectively, these data demonstrate that "F. acidarmanus" produces methanethiol through the metabolism of methionine, cysteine, or sulfate. This is the first report of a methanethiol-producing acidophile, thus identifying a new contributor to the global sulfur cycle.
- "Isolation of Escherichia coli O157 : H7 from the gall bladder of inoculated and naturally-infected cattle"
Jeong KC, Kang MY, Heimke C, et al., Veterinary Microbiology 119 (2-4): 339-345 Jan 2007. This study establishes that E. coli O157H7 can reside transiently or permanently at a low level in the gall bladder of cattle.
- "H-NS controls metabolism and stress tolerance in Escherichia coli O157 : H7 that influence mouse passage"
Erol I, Jeong KC, Baumler DJ, et al., BMC Microbiology 6: Art No. 72 Aug 2006. These results expand the influence of H-NS on carbon and nitrogen metabolism and highlight its role in the ability of O157:H7 strains to respond to changing nutrients and conditions encountered in the environment and its hosts.
- "Enhancement of acid tolerance in Zymomonas mobilis by a proton-buffering peptide"
Baumler DJ, Hung KF, Bose JL, et al., Applied Biochemistry and Biotechnology 134 (1): 15-26 Jul 2006. Results from this study demonstrate that the production of a peptide with a high proportion of basic amino acids can contribute to protection from low pH and weak organic acids such as acetic acid.