Measurements of photorespiration in some microscopic algae

摘要

The rate of photorespiration in three green algae and four blue-green algae was determined by the measurement of the rate of loss of photosynthetically fixed14CO2in light in CO2-free air at 25°. In all algae studied, CO2evolution in light was considerably less than that in the dark, except forChlamydomonas reinhardiiwhich released slightly more CO2in the light. Raising the temperature to 35° had little effect on the ratio of light to dark14CO2release. Blue-green algae showed the lowest photorespiration rate of the algae studie