Carbohydrate Transformations in Leaf Blades, With Special Reference to Sucrose Synthesis

SEQUESTRATION OF CYTOPLASMIC ORTHOPHOSPHATE BY MANNOSE AND ITS DIFFERENTIAL EFFECT ON PHOTOSYNTHETIC STARCH SYNTHESIS IN C3 AND C4 SPECIES

“…Differences were greatest in the early stages and subsequently became less marked (Table 3). Leonard (1939) speculated that although a wide variety of exogenous sugars can lead to starch accumulation in leaves, it was possible that some acted indirectly on the starchsynthesizing niachinery. Similarly, Thomas (1949) experiments, that 'the evidence does not appear to be conclusive that starch is actually produced from the nutrient absorbed'.…”