Plants for proper growth and development require a certain concentration of macronutrients and micronutrients. However, high concentrations of metals , both necessary and ballast are very toxic to living organisms. Plants, as nieprzemieszczające organisms during the life cycle, generated collection mechanisms governing processing , distribution and storage of ions or other substances . In recent years in plant cells have been identified and characterized initially various systems involved in the active transport of metal ions moving across the cell membrane .

The sub-family of the P-type ATPases superfamily, P 1B -ATPases, comprises primary metal transporters using ATP as the source of energy. According to their function, they contain the specific structural motifs (Cys-Pro-Cys/His/Ser motif) and His rich domains, that may participate in metal binding and transport across the membranes. Higher plants possess more P 1B -ATPases then do other organisms and these are located in different cell membranes and tissues having a variety of tasks.