Dr. Stefan Green, Ph.D.
Research Faculty
M.S. Environmental Health Engineering. 1998. Northwestern University, Evanston, IL
B.A. Earth and Environmental Sciences. 1995. Wesleyan University, Middletown, CT
Research Interests: I am a molecular microbial ecologist and have studied communities of microorganisms in a wide range of environments, including hypersaline microbial mats, plant roots, alkaline waters, clean rooms and contaminated sediments and waters. My primary interest is to explore and understand the effect of shifting environmental conditions on the distribution, abundance and activity of microorganisms. These shifting conditions can be natural and artificial: in studies of microbial mats I studied the shifting distribution of sulfate-reducing bacteria (and other organisms) during a diurnal cycle, and the abundance and distribution of methanogens, sulfate-reducing bacteria and cyanobacteria in mats maintained under lowered salinity and sulfate conditions. Currently, as part of a Department of Energy project with Dr. Joel Kostka, I am studying microbial communities at a uranium-contaminated site in Oak Ridge, TN. As part of our efforts to explore subsurface microbial communities involved in uranium reduction, we are also studying microbial community dynamics in an engineered subsection of the site that undergoes periodic reduction (via addition of organic carbon) and oxidation (via addition of nitrate or by natural processes). The complexity of the subsurface requires a large number of samples to be processed and analyzed, and part of my work is to develop higher throughput analytical techniques for microbial community characterization.
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Email: green@ocean.fsu.edu
Dr. Om Prakash Sharma, Ph.D.
Postdoctoral Associate
M.S. Microbiology. 2000. Dr. R.M.L. University, Faizabad, India
B.S. Botany, Zoology, Chemistry. 1995. Dr. R.M.L. University, Faizabad, India
Research Interests: Although innovation and rapid development in molecular based culture independent approach has revolutionized the area of microbiological research, particularly, area of microbial ecology. However, there are millions of hidden and unsolved questions are still remains to answer from marine, medical, agriculture and environments. To answer these question properly and scientifically cultivation and characterization of unknown novel microbes under laboratory conditions is very essential. Cultivation and physiological characterization of novel microbes under laboratory conditions still resides in the root of microbiology and act as a hallmark of microbiological research. I am basically involved in cultivation and physiological characterization of nitrate, metal and sulphate-reducing prokaryotes from nitrate and uranium contaminated subsurface environment under U. S. Department of Energy program. Being a microbiologist, I have a keen interest in “Who is there and what they are doing”, and want to know the natural activities of microbes. Pleasing beneficial recalcitrant (fastidious) bugs by optimum food (culture medium) and environment (culture conditions) and to study their diversity is the aim of my research.
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Email: prakash@ocean.fsu.edu
