Two aspects of C-4 plants : 1. effects of light intensity on photosynthesis : 2. A nitrogen-fixing association

Alan Leedham Hart
Part 1 concerns the effect of light intensity on the leaves of Gomphrena globosa, a C-4 plant. Plants were grown under three light intensities. The structure and function of the photosynthetic apparatus of newly matured leaves were examined by a number of techniques. These were electron microscopy, infra-red fluorescence photomicrography, dye (TNBT) reduction and ¹⁴CO₂ feedings. Contrary to conclusions from the literature, light intensity did not affect the membrane configuration of the chioroplasts. Metabolite levels...
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