Brandi ReesePostdoctoral Research
Contact InformationOffice: AHF 221
Phone: (213) 740-1763
Through the use of geochemical techniques such as mass spectrometry, high pressure liquid chromatography, spectrophotometry, and solid-phase reactive/unreactive iron extraction, I have been able to characterize the porewater and solid sediment biogeochemistry. Additionally, I use molecular techniques such as RNA/DNA extraction, reverse transcription, PCR amplification, mRNA transcript quantification, and next generation sequencing to characterize the active microbial community. It is through these methods that I am trying to understand important questions for life in the subsurface:
-How active is the microbial community within the sediment?
-How genetically connected are microbes between global locations?
-What geochemical variations lead to the geographic isolation of microbial communities?
I am using sediments from the Integrated Ocean Discovery Program (IODP) Expeditions 325 (Great Barrier Reef), 329 (South Pacific Gyre), and 336 (North Pond) to explore these and many more questions. My past research has focused on both the inorganic sulfur and iron cycle as well as volatile organic sulfur compounds (VOSCs). I am interested in fluxes at the sediment-water interface and processes of the inorganic sulfur cycle as well as air-water exchange of VOSCs.
|Reese, B. K., Mills, H. J., Dowd, S. E., Morse, J. W. (2013). Linking molecular microbial ecology to geochemistry in a coastal hypoxic zone. Geomicrobiology Journal/Taylor & Francis. Vol. 30 (2), pp. 160-172.|
|Mills, H. J., Reese, B. K., St. Peter, C. (2012). Characterization of microbial population shifts during sample storage. Frontiers in Extreme Microbiology. (DOI:10.3389/fmicb.2012.00049) Frontiers in Extreme Microbiology|
|Mills, H. J., Reese, B. K., Shepard, A. K., Riedinger, N., Morono, Y., Inagaki, F. (2012). Characterization of metabolically active bacterial populations in subseafloor Nankai Trough sediments above, within and below the sulfate-methane transition zone. Frontiers in Extreme Microbiology. Vol. 3, pp. 113.|
|Reese, B. K., Finneran, D. W., Mills, H. J., Zhu, M. X., Morse, J. W. (2011). Examination and refinement of the determination of aqueous hydrogen sulfide by the methylene blue method. Aquatic Geochemistry. Vol. 17 (4-5), pp. 567-582.|
|Reese, B. K., Anderson, M. A. (2009). Dimethyl sulfide production in a saline eutrophic lake, Salton Sea, California. Limnology And Oceanography. Vol. 54 (1), pp. 250-261.|
|Reese, B. K., Anderson, M. A., Amrhein, C. (2008). Hydrogen sulfide production and volatilization in a polymictic eutrophic saline lake, Salton Sea, California. Science Of The Total Environment. Vol. 406 (1-2), pp. 205-218.|