Mobility, bioavailability and distribution of Fe and Cu in mangroves (Avicennia schaueriana and Rhizophora mangle) from a semiarid coast in NE Brazil
LUIZ D. LACERDA,
INGRA B.K. CAVALCANTE,
ARLETE A. SOARES
et al.
Abstract:Mangroves buffer metals transfer to coastal areas though strong accumulation in sediments making necessary to investigate metals' bioavailability to plants at the rhizosphere. This work evaluates the effect of mangrove root activity, through iron plaque formation, on the mobility of iron and copper its influence on metals' uptake, and translocation through simultaneous histochemical analysis. The Fe 2+ and Fe 3+ contents in porewaters ranged from 0.02 to 0.11 µM and 1.0 to 18.3 µg.l -1 , respectively, whereas … Show more
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