Phosphorus is a structural part of carbohydrate esters, phospholipids of cell membranes, coenzymes and nucleic acids.
The energy released by the hydrolysis of the terminal phosphate radicals of ATP, ADP and AMP molecules is used by the cell in photosynthesis, biosynthesis of starch, fats and the active process of ionic absorption.
Phosphorus is part of energy preservation and transfer molecules such as uridine triphosphate (UTP), cystidine triphosphate (CTP), guanosine triphosphate (GTP) and adenosine triphosphate (ATP), the main nucleotide triphosphate required for starch synthesis.
Deficiency – The old leaves are dark green, purplish near the veins and with dark spots along the blade. In the final stage, scores become necrotic.
