Many eukaryotic photosynthetic organisms enhance their carbon uptake by supplying concentrated CO2to the CO2-fixing enzyme Rubisco in an organelle called the pyrenoid. Ongoing efforts seek to engineer this pyrenoid-based CO2-concentrating mechanism (PCCM) into crops to increase yields. Here we develop a computational model for a PCCM on the basis of the postulated mechanism in the green alga
Marine diatoms are key primary producers across diverse habitats in the global ocean. Diatoms rely on a biophysical carbon concentrating mechanism (CCM) to supply high concentrations of CO2around their carboxylating enzyme, RuBisCO. The necessity and energetic cost of the CCM are likely to be highly sensitive to temperature, as temperature impacts CO2concentration, diffusivity, and the kinetics of CCM components. Here, we used membrane inlet mass spectrometry (MIMS) and modeling to capture temperature regulation of the CCM in the diatom
- Publication Date:
- NSF-PAR ID:
- 10400678
- Journal Name:
- Photosynthesis Research
- Volume:
- 156
- Issue:
- 2
- Page Range or eLocation-ID:
- p. 205-215
- ISSN:
- 0166-8595
- Publisher:
- Springer Science + Business Media
- Sponsoring Org:
- National Science Foundation
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