Ammonia stimulated photosynthetic 14 CO 2 fixation in isolated spinach cells under conditions of saturating light intensity and adequate CO 2 supply. Increasing temperature increased photosynthesis and promoted the stimulation of photosynthesis by ammonia. Ammonia increased carbon traffic into organic acids and amino acids without affecting the total, 14 C incorporation in the neutral fraction, although the relative distribution of 14 C incorporation in the neutral fraction as a percentage of the total soluble 14 C incorporation was decreased. The increased carbon flow into the amino acid fraction led to an increase of, 14 C incorporation, principally into glutamine, glutamate, and aspartate. The role of ammonia in photosynthetic carbon metabolism is discussed.
No takes yet. Share an insight, caveat, or question.
Woo et al. (1980) studied this question.