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Full-Text Articles in Physical Sciences and Mathematics
New And Export Productivity Regulation By Si And Fe In The Equatorial Pacific Ocean, Fei Chai
New And Export Productivity Regulation By Si And Fe In The Equatorial Pacific Ocean, Fei Chai
University of Maine Office of Research Administration: Grant Reports
To identify and quantify the principal processes that control the partitioning of carbon among oceanic reservoirs and between the ocean and atmosphere on focal and regional scales, with a view towards synthesis and prediction on a global scale, is a specific goal of the U.S. JGOFS Synthesis and Modeling Project. As a contribution towards achieving this goal, Drs. Barber, Peng, Chai and Dugdale will develop an ecosystem model for the equatorial Pacific Ocean, with a focus on how silicate and iron affect new and export productivity and the partitioning of carbon between the atmosphere, surface ocean and deep ocean. The …
Emersion Stress In Intertidal Seaweeds: Role Of Active Oxygen, Ian R. Davison
Emersion Stress In Intertidal Seaweeds: Role Of Active Oxygen, Ian R. Davison
University of Maine Office of Research Administration: Grant Reports
The study will examine stress-tolerance in two major groups of perennial intertidal macroalgae, the red and brown seaweeds. The research will test the hypothesis that active oxygen is involved in emersion stress of intertidal seaweeds. Damage due to active oxygen will be determined in stress-tolerant and stress- susceptible species exposed to emersion stress by measuring the peroxidation of membrane lipids. Plants will be grown in laboratory culture under conditions that increase their ability to withstand emersion stress. If the research hypothesis is correct, increases in stress tolerance should be associated with increased levels of antioxidants and/or protective enzymes. The proposed …