OREGON STATE UNIVERSITY
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Website: https://microbiology.oregonstate.edu/content/thomas-sharpton; https://alexforscience.wordpress.com/ |
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Website: https://nbaetge.github.io (Kim Halsey’s lab: http://kim.halsey.co/; The daily vertical migration of zooplankton in the global oceans represents an important pathway by which carbon is shuttled from the sunlit surface to the deep dark ocean. While these vertical migrations can be detected in satellite retrievals of optical properties, their signal can be obscured by the diel behaviors of phytoplankton. Through cultivation-based experiments, my research seeks to tease apart the diel optical signatures associated with phytoplankton from those of vertical migrating zooplankton. This work will help to constrain remote sensing observations of diel vertical migrations, thereby allowing researchers to better assess how they vary across time and space as well as evaluate their role in global carbon cycling. |
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Website: https://microbiology.oregonstate.edu/content/dr-rebecca-vega-thurber My research focuses on the interface between viruses, their microbial hosts, and human-driven changes in marine nutrient regimes. I am particularly interested in the ways that viruses modify the metabolic activities of the microbes that they infect through the use of auxiliary metabolic genes, or "AMGs". These genes engineer microbial metabolism to better suit viral replication and can alter the way that microbes utilize key macronutrients, including nitrogen. The goal of this research is to understand how specific genetic aspects of viruses contribute to cellular metabolism to better predict how microbial communities respond to transient and sustained eutrophication. |
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Website: https://microbiology.oregonstate.edu/dr-stephen-giovannoni I am interested in the dynamics and functioning of marine microbial virus-host systems and how they relate to the wider microbial community and nutrient cycles. My fellowship is sponsored by the Simons Foundation, and I am currently working on the impacts of viruses on volatile organic carbon (VOC) and energy cycling in marine methylotrophic bacteria and algae. My goal is to employ PTR-MS to identify what VOCs algae produce, what/how the methylotrophic OM43 bacteria utilize compounds produced by algae and how the metabolism of both changes when infected by a virus. |
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Website: https://microbiology.oregonstate.edu/content/thomas-sharpton My current research interests lie in disease ecology and the associations of infections with microbiome dysbiosis. The role of microbiomes in the development, health and survival of wildlife is largely unknown. In ungulates, and bovids in particular, juvenile survival is critical to population performance. My research will determine the patterns of gut and nasal microbiome development in African buffalo calves and how these relate to their growth, development, survival, and disease susceptibility. The results from this study will improve our understanding of the links between microbiome variation and wildlife population health. |
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Website: http://microbiology.oregonstate.edu/aahl As a research assistant at the JL Fryer Aquatic Animal Health Lab, I am responsible for the daily animal husbandry, maintenance of the facility, and assisting researchers with experimental design. In addition, I am involved in the field work for projects monitoring the prevalence of Ceratonova shasta, its invertebrate host, and the effect of the parasite on salmonids in the Klamath River. Publications: Bruce A. Menge, Sally D. Hacker, Tess Freidenburg, Jane Lubchenco, Ryan Craig, Gil Rilov, Mae Noble, Erin Richmond (2011). Potential impact of climate-related changes is buffered by differential responses to recruitment and interactions. Ecological Society of America 81(3) 493-509. |
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Website: www.vegathurberlab.wixsite.com/microbiology/team; www.hannah-epstein.com My research interests are focused around coral reef microbial ecology and its role in ecosystem health and climate resilience. In the Vega Thurber Lab, I examine the effects of shifts in nutrient subsidies on the health and resilience of corals through a microbial lens. With the aim to identify land-sea connections in biogeochemical cycling, I hope to discover whether land conservation activities can bolster the health of adjacent reef habitats, providing critical information for future environmental management initiatives. |
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Website: http://kim.halsey.co/ My research investigates how the physiology and composition of marine plankton communities are linked to variability in carbon export efficiencies. Through ship-based observations and experimental approaches my work will (i) shed light on how bulk photic layer plankton properties can be linked to optical properties retrievable from remote sensing and (ii) explore the potential of active sensor-based technologies. |
 Dr. Richard Holt, Senior Research Associate (Dr. Bartholomew)Website: http://microbiology.oregonstate.edu/aahl Forty-two years of experience in the study of fish disease as Senior Fish Pathologist at the Oregon Department of Fish and Wildlife (Retired). Previous activities include conducting research in the diagnosis and treatment of fish parasites, pathogens in hatchery fish, detection of pathogens in wild stocks of fish and determining causes of fish losses in Oregon. Principal area of research and publications has been in studies of the yellow pigmented bacterial fish pathogens such as Flavobacterium psychrophilum agent of cold-water disease and F. columnare, agent of columnaris disease. Currently participating on a project to study the occurrence of the myxosporean parasite, Ceratomyxa shasta, and its impact on wild salmonid stocks in the Klamath River watershed. |
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Website: http://microbiology.oregonstate.edu/content/thomas-sharpton I am interested in the interactions between symbiotic or pathogenic microbes and their hosts. I currently have a joint appointment in the Sharpton and Bartholomew Labs. I am leading the development of a gut microbiome core facility in the Sharpton Lab. This facility serves research programs across the nation by applying cutting-edge DNA sequencing and data analytic approaches to discern the biodiversity and composition of gut microbe samples produced as part of an experiment. In the Bartholomew Lab, I utilize molecular biology techniques to study the myxozoan parasites that affect the health of salmonid populations. |
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Website: http://microbiology.oregonstate.edu/dr-stephen-giovannoni My research is focused on how genetic code expansion enables augmented metabolism and gene evolution in marine microbial ecosystems. Currently, I am examining the taxonomic range and niche preference of marine microbes capable of genetic code expansion, as well as under-explored pathways for carbon and nitrogen metabolism affected by this mechanism. |
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Website: http://microbiology.oregonstate.edu/dr-stephen-giovannoni My research is sponsored by Simons Foundation International and is part of the BIOS-SCOPE initiative to understand carbon cycling in the Western Sargasso Sea near Bermuda. My work focuses on the oxidation of dissolved organic matter (DOM) by major groups of planktonic bacteria, including streamlined cells such as SAR11. I employ a combination of approaches, including genomics, experiments with cultured cells, chemical and biochemical measurements, and field studies to identify carbon oxidation pathways. One of the key problems I am trying to understand is the relationship between the reactivity of organic carbon compounds, which determines their half-life in the oceans, and specialized metabolic pathways that have evolved in bacteria for DOM oxidation. My research includes work with co-cultures of phytoplankton and bacteria to understand this early and fundamental step in the global ocean carbon cycle. |
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Web Site: https://microbiology.oregonstate.edu/michael-kent I oversee the daily operations of the Kent Lab and our zebrafish facility. My research focuses on developing techniques which eliminate pathogens like Pseudoloma neurophilia and Pseudocapillaria tomentosa, from laboratory zebrafish colonies. In addition, I support other research projects that investigate pathogens associated with prespawn mortality in salmonids.
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Website: https://rowanmclachlan.wixsite.com/website As a coral ecophysiologist, I am interested in understanding the influence of the seawater environment on the phenotype of coral holobionts. Specifically, I investigate the impact of global and local stressors such as ocean warming, ocean acidification, nutrient pollution, and over-fishing on coral physiology, morphology, and recently, the microbiome (Vega Thurber Lab). Through my academic journey, I have studied corals on the Great Barrier Reef (undergrad), in Hawaii (grad), and in French Polynesia (postdoc). If you would like to learn more about my research or collaborate on a future project, please don't hesitate to contact me. |
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Web Site: https://aahl.microbiology.oregonstate.edu/ Worked for the Partnership for Interdisciplinary Studies of Coastal Oceans (PISCO) at the OSU Department of Integrative Biology and the Crop and Food Research Institute in Nelson, New Zealand; before starting my current position in the J.L. Fryer Aquatic Animal Health Laboratory at OSU. As Lab Manager, I am responsible for maintaing the research facility and physical plant; coordinating resarchers, and ensuring proper care and health of the aquatic animals. My research interests are focused on the effect of environmental stressors such as temperature or pollutants on the immune systems of aquatic animals. |
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Website: https://vegathurberlab.wixsite.com/microbiology/team My research interests are focused on molecular microbial ecology, anthropogenic impacts, bioremediation, and bioinformatics. Currently, I am exploring the core microbiome profile of several coral species in distinct coral reefs around the world and relating environmental factors with the coral core microbiome. This study is part of the Global Core Microbiome Project (GCMP), which involves more than 110 coral species from several reefs worldwide. As manager of the Vega Thurber Lab, I develop operational standards to maintain the proper functioning of the laboratory and ensure compliance with practices in accordance with current standards. In addition, I provide support to students and help in orienting their research, especially related to laboratory protocols, to ensure the well-being and safety of students during laboratory activities. |
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Website: https://laurenspeare.wixsite.com/website My research interests are focused on how microbes perceive and interact with other organisms and their environment. I am particularly interested in antagonistic interactions: competition, predation, and parasitism, and how these interactions shape microbiome structure and function. I study bacterial predation by the ubiquitous bacterial predator Halobacteriovorax, and parasitism by the novel coral parasite Aquarickettsia rohweri within the coral microbiome. |
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Website:http://microbiology.oregonstate.edu/content/thomas-sharpton The gut microbiome is a complex and dynamic community with an incredible metabolic potential. The makeup of the microbiome (i.e., its constituent species and their genes) is influenced by multiple processes including selection by the host, interactions between the microbes, and (my focus) exposure to environmental compounds such as toxins and drugs. The metabolic capabilities of the microbiome influence how such environmental compounds are processed within the host: potentially mitigating or exacerbating toxic effects. My goal, using observational studies in humans and experiments in model organisms, is to ascertain how the environment influences the metabolic potential of the microbiome, and in turn, how the microbiome alters the effects of environmental compounds on the development and health of the host. |
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Website: http://microbiology.oregonstate.edu/dr-stephen-giovannoni My research is focused on understanding how trace organic cofactors, such as B-vitamins, influence the structure and function of marine microbial communities. Currently, I am exploring the connections between the cellular biochemistry and environmental availability of vitamin B1 and its biochemical congeners, and the ways that this coenzyme is able to control planktonic community dynamics. |
Dr. Alexandra Alexiev, Postdoctoral Scholar (Dr. Sharpton)
Dr. Nicholas Baetge, Postdoctoral Scholar (Dr. Halsey)
Dr. Leigh Combrink, Research Associate/Postdoc (Dr. Sharpton)
Dr. James Fox, Postdoctoral Scholar (Dr. Halsey)
Dr. Kristin Kasschau, Research Associate (Dr. Sharpton)
Dr. Chih-Ping Lee, Postdoctoral Scholar (Dr. Giovannoni)
Connor Leong, Faculty 
Dr. Rowan McLachlan, Postdoctoral Scholar (Dr. VegaThurber)
Dr. Denise Silva, Research Associate, Dr. Vega-Thurber; Dr. Jerri Bartholomew
Dr. Lauren Speare, Postdoctoral Scholar (Dr. Vega-Thurber)
Dr. Chris Suffridge, Research Associate/Postdoc (Dr. Giovannoni)