A. marina from aquatic plants is widely distributed throughout Bardestan estuary (Bushehr, Iran). This study examined the uptake of some metals by A.marina and their translocation from roots to other parts of plant. For this purpose, samples of sediment and mangrove roots and leaves were taken from Bardestan mangrove. Samples were dried in the laboratory and digested in concentrated acids and their metals content was measured using Atomic Absorption Spectrophotometry.The enrichment coefficients in leaves of A. marina were smaller than 1.0 for all studied metals. Similarly, the enrichment coefficients of all metals (Zn, Ni, Cu, Pb, Cd), in roots of A. marina were smaller than 1.0. This study demonstrated that A. marina behave as an excluder plant and could be considered as either a bio-indicator or a bio-accumulator in polluted sediments and waters by heavy metals.
کلید واژگان :
Accumulation, Heavy metals, Avicennia marina, Iran
