UMR 7621, post doctoral position, etude du metabolisme du fer
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A Comparative Study of Iron Uptake Mechanisms in Marine Microalgae: Iron Binding at the Cell Surface Is a Critical Step
Published in PLANT PHYSIOLOGY
We investigated iron uptake mechanisms in five marine microalgae from different ecologically important phyla: the diatoms Phaeodactylum tricornutum and Thalassiosira pseudonana, the prasinophyceae Ostreococcus tauri and Micromonas pusilla, and the coccolithophore Emiliania huxleyi. Among these species, only the two diatoms were clearly able to redu...
Consequences of the presence of 24-epibrassinolide, on cultures of a diatom, Asterionella formosa
Published in Biochimie
Addition of the plant hormone 24-epibrassinolide to culture media stimulated the growth of a freshwater diatom, Asterionella formosa. The hormone stimulated activity of glyceraldehyde-3-phosphate dehydrogenase (GAPDH), a key enzyme from Calvin cycle, by 6-fold. Other key metabolic enzymes, phosphofructokinase and malate dehydrogenase were also stim...