CO2 Assimilation by Etiolated Hordeum vulgare Seedlings during the Onset of Photosynthesis

Abstract

The assimilation of CO₂ by etiolated Hordeum vulgare seedlings during an illumination period indicates a conversion of the organisms to autotrophy. After 1 hour illumination, increases in the photo-assimilation of CO₂ are observed and the distribution of C¹⁴ in the soluble fraction of the plants is predominantly in intermediates of the Calvin cycle.