Published Abstracts

Frank, K.L., Rogers, D.R, Girguis, P.R. (2012). Key factors influencing rates of microbially mediated sulfate reduction in hydrothermal massive sulfide deposits. American Geophysical Union Fall 2012 conference: Abstract (B43G-0498).


Frank, K.L., Schrenk, M.O, Kelley D., Girguis, P.R. (2011). Physico-chemical gradients within the hydrothermal chimney Roane define sharp boundaries for microbial community ecology. American Geophysical Union Fall 2011 conference: Abstract (B22A-06).

Here we present rates of microbially mediated sulfate reduction from three distinct hydrothermal vents in the Middle Valley vent field along the Juan de Fuca Ridge, as well as assessments of bacterial and archaeal diversity, estimates of total biomass and the abundance of functional genes related to sulfate reduction, and in situ geochemistry.

Frank, Kiana.(2005). The Effect of Residential and Agricultural Runoff on the Microbiology of a Hawaiian Ahupua’a. Water Environment Research, 77(7), 2988-2995.

To better understand anaerobic primary production within massive vent deposits, we analyzed carbon fixation rates, documented in situ geochemistry, measured autochthonous organic carbon stable isotope ratios and assessed microbial community composition and functional gene abundances

Frank, K.L., Rogers, D. R., Olins, H. C., Vidoudez, C., & Girguis, P. R. (2013). Characterizing the distribution and rates of microbial sulfate reduction at Middle Valley hydrothermal vents. The ISME journal, 7, 1391–1401.
Olins, H. C., Rogers, D. R., Frank, K. L., Vidoudez, C., & Girguis, P. R. (2013). Assessing the influence of physical, geochemical and biological factors on anaerobic microbial primary productivity within hydrothermal vent chimneys. Geobiology, 11(3), 279-29

Frank, K.L., Rogers, K.L., Rogers, D.R., Johnston, D.T., & Girguis, P.R. (2015). Key factors influencing rates of heterotrophic sulfate reduction in hydrothermal massive sulfide deposits. Frontiers in Microbiology, in press.

Sulfate reduction was measured in batch reactions across a range of physico-chemical conditions. We posit that variability in sulfate reduction rates reflect the response of the active microbial consortia to environmental constraints on in situ microbial physiology, toxicity, and the type and extent of energy limitation.