The evolution of inorganic carbon concentrating mechanisms in photosynthesis

John A. Raven, Charles S. Cockell, Christina L. De La Rocha

    Research output: Contribution to journalArticlepeer-review

    185 Citations (Scopus)

    Abstract

    Inorganic carbon concentrating mechanisms (CCMs) catalyse the accumulation of CO(2) around rubisco in all cyanobacteria, most algae and aquatic plants and in C(4) and crassulacean acid metabolism (CAM) vascular plants. CCMs are polyphyletic (more than one evolutionary origin) and involve active transport of HCO(3)(-), CO(2) and/or H(+), or an energized biochemical mechanism as in C(4) and CAM plants. While the CCM in almost all C(4) plants and many CAM plants is constitutive, many CCMs show acclimatory responses to variations in the supply of not only CO(2) but also photosynthetically active radiation, nitrogen, phosphorus and iron. The evolution of CCMs is generally considered in the context of decreased CO(2) availability, with only a secondary role for increasing O(2). However, the earliest CCMs may have evolved in oxygenic cyanobacteria before the atmosphere became oxygenated in stromatolites with diffusion barriers around the cells related to UV screening. This would decrease CO(2) availability to cells and increase the O(2) concentration within them, inhibiting rubisco and generating reactive oxygen species, including O(3).
    Original languageEnglish
    Pages (from-to)2641-2650
    Number of pages10
    JournalPhilosophical Transactions of the Royal Society B - Biological Sciences
    Volume363
    Issue number1504
    DOIs
    Publication statusPublished - 2008

    Keywords

    • Angiosperms
    • Biological Evolution
    • Carbon Dioxide
    • Carbon Isotopes
    • Cyanobacteria
    • Eukaryota
    • Lichens
    • Models, Biological
    • Photosynthesis
    • Ribulose-Bisphosphate Carboxylase

    Fingerprint Dive into the research topics of 'The evolution of inorganic carbon concentrating mechanisms in photosynthesis'. Together they form a unique fingerprint.

    Cite this