Constituent of the chlorophyll molecule and activator of numerous enzymes involved in the metabolism of carbohydrates, fats and proteins.
Deficiency – Characterized by a discoloration of the margins of the older leaflets, which progresses towards the interveinal area, the veins remaining green.
When the deficiency is more severe, the yellow areas darken, later becoming necrotic. Symptoms caused by a virus infection can be confused with magnesium deficiency.
