0.16 to 0.35 unitless
||Wheat Triticum aestivum
||Misra JB. Integrated operation of the photorespiratory cycle and cytosolic metabolism in the modulation of primary nitrogen assimilation and export of organic N-transport compounds from leaves: a hypothesis. J Plant Physiol. 2014 Feb 15 171(3-4):319-28. doi: 10.1016/j.jplph.2013.09.008. p.322 left column bottom paragraphPubMed ID24157314
||N.P. Hall, A.J. Keys Temperature dependence of the enzymic carboxylation and oxygenation of ribulose-1,5-bisphosphate in relation to effects of temperature on photosynthesis Plant Physiol, 72 (1983), pp. 945–948PubMed ID16663143
||Primary source abstract:"Carboxylase and oxygenase activities of ribulose bisphosphate carboxylase purified from wheat were measured over the temperature range 5 to 35 degrees C either at constant O(2) and CO(2) concentrations or where the O(2) and CO(2) simulated the concentrations in water equilibrated at each temperature with the same gaseous phase."
||p.322 left column bottom paragraph:"In air-equilibrated buffers, the oxygenation to carboxylation ratio increases between 15 °C and 35 °C from 0.16 to 0.35 (primary source). The reciprocal of these values (i.e., 1/0.16 and 1/0.35) gives the ratio of carboxylation to oxygenation. Accordingly, in well-watered plants, the ratio of carboxylation to oxygenation would be nearly 6.2:1 at 15 °C, 4.5:1 at 25 °C and 2.8:1 at 35 °C."