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Pyrenoid formation and impact on photosynthetic supply side energetics in Chlamydomonas reinhardtii

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If you have a question about this talk, please contact Suzy Stoodley.

Chlamydomonas reinhardtii actively accumulates CO2 via the pyrenoid, a microcompartment which is located inside the single chloroplast of the model alga. The vast majority of Rubisco is aggregated in the pyrenoid, and recent work in our lab has established that Rubisco also controls pyrenoid formation via two small subunit surface helices (Meyer et al., in preparation). Here I present results showing that distant residues on both helices are necessary for pyrenoid formation. Furthermore, I show that loss of the CCM as a result of the absence of a pyrenoid (Genkov et al., 2010) significantly changes the energetics of photosynthetic light harvesting.

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

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