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Retention of metal cations by the cell wall is a common process found in plants in response to stress induced by the presence of trace metals (TMs). In this study conducted on a tomato cell suspension culture, cadmium (Cd) and zinc (Zn) were added to the medium at maximal concentrations of 0.5 and 2 mM, respectively. We showed that around 50 % of Zn or Cd was confined into the cell wall of tomato...