The balance between RuBP carboxylation and RuBP regeneration: a mechanism underlying the interspecific variation in acclimation of photosynthesis to seasonal change in temperature

Functional Plant Biology : FPB
Yusuke OnodaTadaki Hirose

Abstract

The ratio of the capacities of ribulose-1,5-bisphosphate (RuBP) regeneration to RuBP carboxylation (Jmax / Vcmax) (measured at a common temperature) increases in some species when they are grown at lower temperatures, but does not increase in other species. To investigate the mechanism of interspecific difference in the response of Jmax / Vcmax to growth temperature, we analysed the temperature dependence of Vcmax and Jmax in Polygonum cuspidatum and Fagus crenata with the Arrhenius function. P. cuspidatum had a higher ratio of Jmax / Vcmax in spring and autumn than in summer, while F. crenata did not show such change. The two species had a similar activation energy for Vcmax (EaV) across seasons, but P. cuspidatum had a higher activation energy for Jmax (EaJ) than F. crenata. Reconstruction of the temperature response curve of photosynthesis showed that plants with an inherently higher EaJ / EaV (P. cuspidatum) had photosynthetic rates that were limited by RuBP regeneration at low temperatures and limited by RuBP carboxylation at high temperatures, while plants with an inherently lower EaJ / EaV (F. crenata) had photosynthetic rates that were limited solely by RuBP carboxylation over the range of temperatures. These results in...Continue Reading

References

Jun 1, 1997·Annual Review of Plant Physiology and Plant Molecular Biology·Bert G. DrakeSteve P. Long

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Citations

Jul 31, 2007·Plant, Cell & Environment·Jens Kattge, Wolfgang Knorr
Mar 13, 2019·Nature Ecology & Evolution·Mengtian HuangIvan A Janssens
Aug 1, 2008·Functional Plant Biology : FPB·Lai Fern OwMatthew H Turnbull
Jan 27, 2012·Tree Physiology·Yan-Shih LinDavid S Ellsworth
Apr 18, 2013·Plant, Cell & Environment·Carl J BernacchiAndy Vanloocke
Sep 21, 2013·Annals of Botany·Catherine MorfopoulosMalcolm Possell
Jan 29, 2008·The New Phytologist·Lai Fern OwMatthew H Turnbull
Aug 13, 2009·Plant, Cell & Environment·Lisa D PatrickDavid T Tissue

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