Search Constraints

Start Over
Filtering by: Creator Moyer, Craig L. Remove constraint Creator: Moyer, Craig L. Advisor Giovannoni, Stephen J. Remove constraint Advisor: Giovannoni, Stephen J.

Search Results

  • A genomic and proteomic characterization of the first cultured oligotrophic marine Gammaproteobacterium from the SAR92 clade

    Creator:
    Mellbye, Brett L.
    Abstract:
    High-throughput culturing (HTC) consisting of extinction culturing in autoclaved seawater has led to the isolation and characterization of many novel strains of oligotrophic marine bacteria. Strain HTCC 2207 was isolated from the Oregon coast by the HTC method. Phylogenetic analysis based on 16S rRNA gene sequence showed that this strain...
    Resource Type:
    Honors College Thesis
    Full Text:
    THESIS OF Brett L. Mellbye for the degree of Honors Baccalaureate of Science in Microbiology presented

  • Quantification of Osmolytes in the Sargasso Sea Surface Layer Water Column

    Creator:
    Muslin, Omran
    Abstract:
    Oceanic carbon cycling plays a major role in determining global atmospheric CO₂. A better understanding of dissolved organic matter and its constituents in the water column and how it affects marine carbon cycling is sought after. This study successfully measured osmolytes, low molecular zwitterionic compounds derived from amino acids, in...
    Resource Type:
    Masters Thesis
    Full Text:
    additional osmolytes in sea- water for the first time: alanine betaine, propionobetaine, trigonel- line, L

  • Outliers: The Unusual Characteristics of Marine Carbon-Oxidizing Bacterial Cells Adapted to Oligotrophic Conditions

    Creator:
    Noell, Stephen E.
    Abstract:
    Oligotrophic bacteria are adapted to low nutrient concentrations. As most of the ocean is oligotrophic (low in nutrients), oligotrophic bacteria thrive in the ocean and make up the majority of planktonic cells. Because of this, oligotrophs are crucial to oceanic nutrient cycles. However, marine oligotrophic bacteria are dwarfed by their...
    Resource Type:
    Dissertation
    Full Text:
    oligotrophic bacteria. I measured uptake and oxidation rates of a radioactively labeled amino acid, L-alanine

  • Marine bacterioplankton abundances and distributions

    Creator:
    Morris, Robert M.
    Abstract:
    Microorganisms play key roles in ocean biogeochemistry. However, several predominant groups of uncultured bacterioplankton thought to contribute to important biogeochemical processes in the oceans are known primarily from gene cloning studies. Although these studies have greatly expanded our view of microbial diversity in the oceans, they are not quantitative and...
    Resource Type:
    Dissertation
    Full Text:
    ', Kevin L. Vergin', William A. Siebold1, Craig A. Carlson2, and Stephen J. Giovannoni' 'Department of

  • Phylogenetic characterization of the epibiotic bacteria associated with the hydrothermal vent polychaete Alvinella pompejana

    Creator:
    Haddad, Michael Alexander
    Abstract:
    Symbiotic relationships of bacteria with higher organisms are commonly observed in nature; however, the functional role of these relationships is only rarely understood. This is particularly evident in epibiotic bacterial associations in the marine environment where the bacteria are often a diverse ensemble of microorganisms, thus complicating the identification of...
    Resource Type:
    Masters Thesis
    Full Text:
    everyone in my lab for their encouragement and support. I am especially grateful to both Craig Cary and

  • Characterization of novel marine oligotrophic bacteria isolated from the Pacific Ocean : description of Marinivirgula fluito gen. nov., sp. nov., Marinivirgula obesa gen. nov., sp. nov. and Litincola parvulus gen. nov., sp. nov.

    Creator:
    Shin, Eun Jung
    Abstract:
    A new high-throughput culturing (HTC) method using a low nutrient heterotrophic medium (LNHM) has led to the isolation of many novel strains of oligotrophic bacteria from marine ecosystems. Four strains belonging to a single dade, HTCC2151, HTCC218OT, HTCC2178T and HTCC2188T, were isolated from the coast of Oregon by the HTC...
    Resource Type:
    Masters Thesis
    Full Text:
    the strains, HTCC2178T and HTCC2188T, started forming tiny colonies on l/1OR2A at 16°C after a 10-day

  • Metabolism of one carbon (C1) and methylated compounds in SAR11 bacteria

    Creator:
    Sun, Jing
    Abstract:
    SAR11 Alphaproteobacteria are the most abundant aerobic chemoheterotrophs in ocean surface waters. Previous studies have indicated SAR11 cells play an important role in marine carbon cycling and consume up to half of some common dissolved organic compounds, such as amino acids. During sequencing of the first SAR11 genome, genes for...
    Resource Type:
    Dissertation

  • Prokaryotes associated with marine crust

    Creator:
    Mason, Olivia Underwood
    Abstract:
    Oceanic crust covers nearly 70% of the Earth's surface, of which, the upper, sediment layer is estimated to harbor substantial microbial biomass. Marine crust; however, extends several kilometers beyond this surficial layer, and includes the basalt and gabbro layers. In particular, the basalt layer has high permeabilities which allows for...
    Resource Type:
    Dissertation
    Full Text:
    ., Thorseth, I.H., and Ovreas, L. (2008) Enumeration of Archaea and Bacteria in seafloor basalt using real

  • Proteomic analyses of marine bacteria

    Creator:
    Sowell, Sarah M.
    Abstract:
    Proteins are the metabolic machines of the cell and as such, the study of proteins could illuminate the dominant biological activities that are occurring within cells and reveal how an organism interacts with its environment. Here, we used proteomic techniques to study the abundant marine bacterium SAR11 both as an...
    Resource Type:
    Dissertation
    Full Text:
    , initial data processing, and database construction for chapter 4. Craig Carlson contributed to sample

  • Culturing uncultured environmental microorganisms

    Creator:
    Connon, Stephanie A.
    Abstract:
    Research on natural environments, over the last decade, is replete with microbial diversity studies that used culture-independent approaches. The cloning and sequencing of the 16S rRNA genes has been the driving force in the expansion of awareness about the great diversity of previously undiscovered microorganisms. Well-known uncultured groups of microorganisms...
    Resource Type:
    Dissertation
    Full Text:
    research. ASM News 64, pp. 269-275. Giovannoni, S. J., T. B. Britschgi, C. L. Moyer and K. G. Field (1990