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Regulation of the carbon concentrating mechanism in Chlamydomonas reinhardtii by CO2 and light

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If you have a question about this talk, please contact Megan Cooper .

Carbon concentrating mechanisms (CCMs) occur in most unicellular aquatic photosynthetic organisms to compensate for Rubisco kinetic constraints and limited availability of CO2 . In Chlamydomonas, the CCM is induced under low CO2 in the light and comprises: active uptake of inorganic carbon, carbonic anhydrases to facilitate the interconversion of CO2 and HCO3 -, and the localisation of Rubisco to a chloroplast microcompartment called the pyrenoid.

My overall project aim is to provide a molecular definition of the pyrenoid and co-regulation of CCM components. In particular, the focus of my seminar will be my work on the regulation of the CCM in cells grown in dark/light cycles. This novel approach puts the CCM back into a more biological context and attempts to reconcile regulation at the molecular level (mRNA and protein abundance and protein localisation) with overall CCM activity.

This talk is part of the Plant Sciences Research Seminars series.

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