Description
Iron is an essential element for plants, both aquatic and terrestrial: it is utilized in the production of chlorophyll and activates some enzymes that take part in metabolic reactions; it does all of this, however, in very small concentrations. Iron is considered a micronutrient, and it is often the limiting element in plant production in some aquatic habitats. A deficiency of iron is physically apparent as plant leaves which appear yellow or even somewhat transparent. In later stages, the leave
