FIND ARTICLE

Characteristics of plant antyporterów cation / proton type CAX

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 ROLE OF PRIMARY METAL PUMPS (P1B-ATPases) IN THE MAINTAINING OF HEAVY METALS HOMEOSTASIS IN PLANT CELLS

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.

The Editorial Board
Andrzej Łukaszyk - przewodniczący, Zofia Bielańska-Osuchowska, Szczepan Biliński, Mieczysław Chorąży, Aleksander Koj, Włodzimierz Korochoda, Leszek Kuźnicki, Aleksandra Stojałowska, Lech Wojtczak

Editorial address:
Katedra i Zakład Histologii i Embriologii Uniwersytetu Medycznego w Poznaniu, ul. Święcickiego 6, 60-781 Poznań, tel. +48 61 8546453, fax. +48 61 8546440, email: mnowicki@ump.edu.pl

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