Phytoplankton and microzooplankton comprise the base and the first link of the marine food web, respectively. These microbes are key drivers of marine carbon and nutrient cycles. Phytoplankton convert atmospheric CO₂ into organic carbon, and microzooplankton consume phytoplankton, packaging phytoplankton carbon into particulate forms that have a variety of fates:...
Four root mutants, diageotropica (dgt), and altered root architecture (ara) 1, 2, and 3, were used to study root architecture and better understand the process by which root architecture is determined. Adventitious root formation, tissue response to auxin, nutritional response, and starch accumulation in the leaves were tested in ara...
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Tomato
Kelsey Hoth1
Dr. Maria
Ivanchenko2
GENETIC ANALYSES
OF ROOT SYSTEM
DEVELOPMENT IN THE
The bioavailability of chemical compounds in the marine environment fundamentally influences the growth and physiology of microorganisms. Organic and inorganic chemicals that are produced by some marine plankton can be consumed by other plankton for energy production, growth, or to initiate essential physiological processes. Cultures of the diatom Thalassiosira pseudonana,...
Microalgae play an important role in the marine ecosystem. They are primary producers and form the base of the aquatic food web. The effects and changes that occur to microalgae are expected to have influences on the higher tropic levels. One major factor that influences growth of microalgae is the...
Microalgae play an important role in the marine ecosystem. They are primary producers and form the base of the aquatic food web. The effects and changes that occur to microalgae are expected to have influences on the higher tropic levels. One major factor that influences growth of microalgae is the...
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Kimberly Halsey
Microalgae play an important role in the marine ecosystem. They are
When microzooplankton graze phytoplankton prey, the consumed carbon is partitioned into particulates, dissolved organic carbon (DOC), and CO2. Allocation of prey carbon to these various fates has important consequences for marine ecosystem function. A 2-stage continuous culture system was used to investigate carbon allocation by microzooplankton consuming phytoplankton grown in...
Nitrate (NO₃-) accumulation in water sources is a serious health and environmental concern. Common methods used to reduce NO₃- accumulation have one or more undesirable traits that limit their efficacy in large-scale decontamination. However, treatment of NO₃- electrochemically is a promising area of study because of the absence of toxic...
Marine protected areas (MPAs) are an area-based tool used to manage and protect areas along the coasts and ocean that face impacts from development and climate change. Local communities both impact and are affected by the creation of MPAs and as such, it is important to include their knowledge and...
Nitrate is a toxic surface and ground water contaminant that poses human-health and ecological hazards. Contamination is anthropogenically sourced to over-amendment of ammonia-based fertilizers, in turn generated by the most carbon intensive chemical process in use today. Electrochemical approaches offer a green alternative to transform harmful waste nitrate into value-added...
This study reports the food habits of Vietnamese college women in association with college life and their cultural background. Their food habits, food associated beliefs, and the influences on their food choices were examined. Interviews, using semi-structured questionnaire, were conducted with 25 Vietnamese college women at Oregon State University. The...