Inhibition of photorespiration and increase of net photosynthesis in isolated maize bundle sheath cells treated with glutamate or aspartate.


Net photosynthetic (14)CO(2) fixation by isolated maize (Zea mays) bundle sheath strands was stimulated 20 to 35% by the inclusion of l-glutamate or l-aspartate in the reaction mixture. Maximal stimulation occurred at a 7.5 mm concentration of either amino acid. Since the photosynthetic rate and the glutamate-dependent stimulation in the rate were equally… (More)


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