Further Experiments on the Inhibition of Respiration of Peas Induced by Oxygen at High Pressures

Publisher Website
Google Scholar
Abstract
Turner and Quartley (1956) concluded that the tricarboxylic acid cycle was a major respiratory pathway in green shelled peas subjected to high pressures of oxygen. Additional support for this view has been obtained by demonstrating the depletion in content of oxaloacetic acid during treatment with oxygen and by the complete reversal of all the functions determined following a return of the samples to air after treatment for short periods with oxygen at high pressures. Oxygen at pressures of either 5 or 3.5 atmospheres caused a similar pattern in the behaviour of the carbon dioxide production, pH, citric and keto-acids, whilst oxygen at a pressure of 2 atm. affected mainly the carbon dioxide production. This suggests that the respiration process can be inhibited by oxygen at high pressures in at least two different stages.