Inhibition of photosynthesis by heat stress: the activation state of Rubisco as a limiting factor in photosynthesis.

Although the catalytic activity of Rubisco increases with temperature, the low affinity of the enzyme for CO(2) and its dual nature as an oxygenase limit the possible increase in net photosynthesis with temperature. For cotton, comparisons of measured rates of net photosynthesis with predicted rates that take into account limitations imposed by the kinetic… (More)