In this article we will discuss about the problem of nutrition in photosynthesis. Every year plant food production of the world is nearly 1.4 x 109 tons of dry matter. This estimate includes cereals, starch, roots, sugar and oil seeds but did not take into account vegetables and fruits. In other words, plant production thus covers only about 1.3% of [...]
In this article we will discuss about the CO2 Fixation Pathways—C4 Cycle. In 1954, in addition to Calvin cycle, an alternative pathway for CO2 fixation in photosynthesis was discovered by Kortschak who reported the formation of C4dicarboxylic acids as primary products of photosynthesis in sugarcane. When 14CO2 was supplied to sugarcane leaves for a short period, 3 four carbon dicarboxylic [...]
Environmental factors greatly influence the structural and physiological adaptations of leaves in plants. Some of the factors like light, temperature and water greatly affect the structural and biochemical change in the leaf. Thus plants growing under forest canopy and deserts (Table 13-6) have different structural adaptabilities. Xerophytic plants have adaptations which help the plant to minimize water loss and at [...]