In this article we will discuss about the production of various vitamins. 1. Vitamin B12 (Cyanocobalamine): G.R. Minot and W.B. Murphy (1926) studied that liver extracts cure pernicious anaemia in human beings. In 1936, both of them shared a Nobel Prize in medicine for this discovery. After this, E.L. Ricke and L. Smith (1948) isolated and crystallized vitamin B12 from [...]
Food materials are manufactured mainly in the leaves and are translocated to the other regions of the plant through the phloem. Some of this is utilized for the growth of the plant, while the excess is stored. Whenever needed, the stored food material is drawn to the regions of necessity again through the phloem. The organs of the plants that [...]
In this article we will discuss about the translocation of organic substances in phloem. An organised transport system is essential for the efficient functioning of different organs in a multicellular plant. Nutrients were absorbed from the soil through the roots and are utilized in rest of the organs of the plant. Similarly, metabolites are synthesized in the leaves and are [...]