It directly participates in photosynthetic activity, constituting the chlorophyll molecule, participating in the activation of several enzymes, such as glutathione synthetase and PEP carboxylase, in the phosphorylation and translocation of photoassimilates.
Deficiency – Weak, generalized chlorosis, with green veins, progressing from older to younger leaves. As the deficiency progresses, pale spots with irregular contours, almost whitish, appear on the leaf blade.
Then, the spots darken in the central region, with necrosis occurring, which spreads to the periphery of the spot.
