The importance of manganese (Mn): it is essential for the synthesis of chlorophyll and its main function is related to the activation of enzymes.
Manganese (Mn) is needed to break down the water molecule, evolve O2 and allow the start of electron flow in photosynthesis.
The symptom of manganese (Mn) deficiency is characterized by interveinal chlorosis in young leaves, as manganese is poorly mobile in the plant.