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Full-Text Articles in Physical Sciences and Mathematics
Purification And Analysis Of Protein Synthetic Initiation Factors From Volvox Carteri, Kathie L. Pooler
Purification And Analysis Of Protein Synthetic Initiation Factors From Volvox Carteri, Kathie L. Pooler
Honors Theses
Volvox carteri, a multi-celled green algae, can grow synchronously given a sixteen hour light period followed by an eight hour dark period, a cycle which is repeated for a 48 hour growth cycle total. Near the end of each light period, reproductive cells divide rapidly resulting in the differentiation of ceIls. When the dark period begins, this differentiation stops and the cells remain dormant with little protein synthesis or differentiation occurring. Immediately after the lights come back on, however, the cells again undergo rapid protein synthesis and complete their differentiation. Previous studies have concluded that Volvox carteri discontinue protein synthesis …
Investigations Of Iron Cycling In Aquatic Systems, Heather A. Lounsbury
Investigations Of Iron Cycling In Aquatic Systems, Heather A. Lounsbury
Honors Theses
A fully automated luminal-based chemiluminescence flow injection analysis system has been developed for rapid detection of Fe(IT) at natural levels in natural water systems. Similar detection limits are achieved for H202 by fluorometry using an enzyme mediated oxidation of the reagent p-hydroxyphenylacetic acid. Using these analytical systems, the rates of Fe(IT) oxidation by dissolved oxygen in 0.7 M NaO have been measured for nanomolar concentrations of Fe(II) over the pH range 7.0 to 8.3. When the production and decomposition of H202 in the system were considered, measured rates were in excellent agreement with a model based on previously reported rate …