Tracking the origins of the Kok effect, 73 years after its discovery

Citation:

Tcherkez, Guillaume G. B., et al. “Tracking the origins of the Kok effect, 73 years after its discovery”. New Phytolologist (Submitted). Print.

Abstract:

The 18th New Phytologist workshop was dedicated to possible causes of the Kok effect, the typical break in the light response curve of net photosynthesis. Available data obtained since its discovery in 1948 show that the effect is not purely caused by a down-regulation of respiration, contrary to the commonly accepted view. However, estimates of leaf respiratory rates obtained in various ecosystems with techniques including the Kok method appear to be widely consistent across different studies, suggesting that Kok-derived values can be used as a surrogate for actual leaf respiration rates in the light.