||Role in Plant Metabolism
||Component of amino acids, nucleic acids, proteins, enzymes, chlorophyll and alkaloids. Stimulates vegetative growth.
||Regulates energy metabolism. Important constituent of cell membranes and nucleic acids. Promotes root growth and accelerates ripening. Improves firmness, red surface colour and storability of fruits.
||Improves osmotic pressure of cells. Regulates water retention. Enhances resistance to frost and drought. Promotes sugar production and storage.
||Responsible for structural and physiological stability of plant tissue. Promotes cell division (fruit size) and cell wall formation. Prevents physiological disorders of fruit and prolongs its shelf life.
||Structural part of the chlorophyll molecule. Stimulates photosynthesis.
||Important for chlorophyll formation. Promotes photosynthesis and protein metabolism. Involved in the respiration chain.
||Stimulates a series of important enzymes. Important for CO2-fixation and plant growth regulator synthesis.
||Extremely important for photosynthesis and N-metabolism. Improves green ground colour of fruit. Improves resistance to fungal diseases.
||Important for cell wall stabilization. Improves sugar production and transport. Promotes pollen fertility and fruit set. Important for auxin metabolism.
||Involved in sugar and protein production. Important for photosynthesis. Improves plant resistance to disease.
||Essential for activation of nitrate reductase. Key to nitrogen fixation in legumes.
||Constituent of some amino acids and hence of proteins.
Hence S-deficiency will lead to protein deficiency.
Important S-containing compounds are Glucosinolates which are of particular importance for horticulture and agriculture.
Glucosinolates are responsilble for the unique taste of many food plants like onions, mustard, radish, garlic, etc.
||Cobalt is not essential for metabolism of plants and therefore not a plant nutrient.
But it is required for Rhizobium and other N2-fixing microorganisms growing within root nodules of legumes.
Co deficiency will affect nodule development.