Crosstalk between photosynthesis and respiration in microbes
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Date
2024-03
Journal Title
Journal ISSN
Volume Title
Publisher
The Indian Academy of Sciences
Abstract
Phototrophic organisms harbor two main bioenergetic hubs, photosynthesis and respiration, and these processes dynamically exchange and share metabolites to balance the energy of the cell. In microalgae and cyanobacteria, the crosstalk between the light-triggered reactions of photosynthesis and respiration is particularly prominent with respiratory O2 uptake which can be stimulated upon illumination. Since its discovery, this light-enhanced respiration has been proposed to be critical in dissipating the excess reducing power generated by photosynthesis. Importantly, the physiological role and putative molecular mechanism involved have just recently started to be understood. Here, we revisit the physiological functions and discuss possible molecular mechanisms of interactions between the photosynthetic and respiratory electron flows in microalgae and cyanobacteria.
Description
Keywords
Cyanobacteria, light-enhanced respiration, microalgae, photosynthesis, respiration
Citation
SHIMAKAWA GINGA, MATSUDA YUSUKE, BURLACOT ADRIEN. Crosstalk between photosynthesis and respiration in microbes. Journal of Biosciences. 2024 Mar; 49: 1-6