Uniform chlorosis, appearing first on older leaves. Involved in synthesis and breakdown of carbohydrates and proteins. Essential for ADP, ATP, DNA, and RNA Development of anthocyanin pigments due to accumulation of sugars. On some plants a uniform ashy green color. K Mobile Activator of enzymes responsible for energy metabolism, starch synthesis, nitrate reduction, and sugar degradation.
Helps regulate opening and closing of stomata in leaves and water uptake by roots.
Is an important component of cell walls helping to resist lodging. Weak stems or lodged plants. Ca Immobile Component of cell wall. Possible enzyme activator. May be required for normal state of protoplasm.