Raposo, SaraOliveira, M. A.Lima-Costa, Maria Emília2014-07-232014-07-232002Raposo, Sara Isabel Cacheira; Oliveira, MA; Lima-Costa, M. E.). Evaluation of the potential biotoxicity / essentiality of Zinc and Cadmium in suspended cells of Cynara cardunculus and Centaurea calcitrapa. In Risk Assessment and Sustainable Land Management using Plants in Trace Element.Contaminated Soils, 99-102, England: Michel Mench & Bernard Mocquor Editors, 2002.2-9520207-0-1AUT: SRA01180http://hdl.handle.net/10400.1/4824From general biological, as well from plant physiological point of view, essential and non-essential heavy metals can be distinguished (Clijsters et al., 1999).engconference object2014-07-23