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Filtering by: Advisor Hawkes, Stephen J. Remove constraint Advisor: Hawkes, Stephen J. Decade 2020-2029 Remove constraint Decade: 2020-2029

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  • Arsenic methylation by marine cyanobacteria Prochlorococcus and Synechococcus

    Creator:
    Lee, Mikaela
    Abstract:
    Our experiments aimed to investigate responses of the marine cyanobacteria Prochlorococcus and Synechococcus to toxic arsenic species, such as arsenate, and to understand cellular mechanisms that contribute to arsenic tolerance. We used two strains of Prochlorococcus, a high-light adapted MED4 and low-light adapted MIT9313, both axenic, for cultivation experiments. For...
    Resource Type:
    Honors College Thesis
    Full Text:
    . . Abstract approved:_____________________________________________________ Stephen Giovannoni Our

  • 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:
    : ______________________________________________________ Stephen J. Giovannoni ABSTRACT Oligotrophic bacteria are adapted to low nutrient