RESPIRATION OF TISSUE SLICES IN HYPOTHERMIA

THE EFFECT OF pH ON THE RESPIRATION OF BRAIN TISSUE; THE pH OF TISSUE SLICES* BY

With slices of various guinea pig tissues suspended in bicarbonate-free horse serum adjusted to various pH values, Canzanelli et al. (1) found that maximum rates of oxygen uptake occurred in all cases in media with pH values well above 7.4. With brain slices, the curve relating respiration rate to the pH of the medium rose with increasing pH, rapidly up’to pH 6, less rapidly from 6 to 8, and th...

The effect of pH on the respiration of brain tissue; the pH of tissue slices.

With slices of various guinea pig tissues suspended in bicarbonate-free horse serum adjusted to various pH values, Canzanelli et al. (1) found that maximum rates of oxygen uptake occurred in all cases in media with pH values well above 7.4. With brain slices, the curve relating respiration rate to the pH of the medium rose with increasing pH, rapidly up’to pH 6, less rapidly from 6 to 8, and th...

The Effect of Cytochrome C upon the Respiration of Tissue Slices.

The Relation of Glucose Absorption to Respiration in Potato Slices.

Regulation of salt respiration in carrot root slices.

In slices of carrot-phloem parenchyma washed for 7 days in water at 20 C, 50 mm KCl stimulates respiration by up to 100% of the ground respiration within 4 minutes of application. The data presented imply that ADP liberated in the cytoplasm as a consequence of KCl accumulation first stimulates a regulator reaction requiring ADP (phosphoglycerate kinase). Thereafter, the point of control alterna...