Possible enzyme activator. May be required for normal state of protoplasm. Involved in cell division. Uniform chlorosis appearing first on young leaves. Dying of growing tips, both roots and shoots.
Plants appear dwarfed.
Mg Mobile Component of chlorophyll. Enzyme activator - activates 36 known enzymes, more than any other element Interveinal chlorosis, normally appearing first on lower leaves. Chlorotic areas die. S Mobile Component of all proteins, a constituent of several amino acids. Several vitamins contain sulfur.