Anatomical responses and tolerance mechanisms in Avicennia schaueriana: effects on accumulation and translocation of metals

SOUZA I.C; ROCHA L.D; MOROZESK M; BONOMO M.M; DUARTE I.D; FURLAN L.M; ARRIVABENE H.P; MONFERRÁN M.V.; MATSUMOTO S.T; MILANEZ C.R.D; WUNDERLIN D.A.; FERNANDES M.N

Espíritu Santo

Congreso; XIII° Congreso Brasilero de Ecotoxicología (ECOTOX); 2014

XIII° Congreso Brasilero de Ecotoxicología (ECOTOX)

The mangrove forest function as an integrated unit between terrestrial and marine environments and play a key role in the maintenance of coastal ecological balance and species diversity (Du et al., 2013). However, it has been reported that coastal habitats have been faced with severe metallic contaminant input, which has become a problem of increasing concern when in excess of natural loads. The bioavailability and toxicity of metals in sediment are associated with pH, redox potential, mineral and organic content, resident biota, and the complicated synergistic interactions between these variables(Morrissey and Guerinot 2009). Thus, the accumulation of metals in plant tissues is determined by the bioavailability of these elements in the soil and the plant efficiency to absorb and translocate it in roots and vascular tissues (Qian et al. 2012). The aim was investigate the effects of a potentially contaminated environmental in a mangrove plant to provide a better understanding of metal tolerance and translocation mechanisms.