DOE OSTI · 1717898
Triose phosphate utilization limitation: an unnecessary complexity in terrestrial biosphere model representation of photosynthesis
Abstract
Triose phosphates are the principal product of photosynthesis. They are used within the chloroplast for starch synthesis, or translocated to the cytosol where they are used to fuel sucrose synthesis. Use of triose phosphate releases inorganic phosphate, and is under strict metabolic control that matches the supply of triose phosphate from the Calvin-Benson cycle to the demand for carbon by sinks (Heldt & Heldt, 2011; McClain & Sharkey, 2019). However, a low rate of triose phosphate utilization (TPU) can deplete the phosphate pool, restrict ATP synthesis and reduce the availability of ATP to power the Calvin-Benson cycle, thereby limiting photosynthesis (Sharkey, 1985).
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Rogers, Alistair, Kumarathunge, Dushan P., Lombardozzi, Danica L., Medlyn, Belinda E., Serbin, Shawn P., Walker, Anthony P.. 2020-11-20. Triose phosphate utilization limitation: an unnecessary complexity in terrestrial biosphere model representation of photosynthesis. https://doi.org/10.1111/nph.17092
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