Changes in bioaccumulation and translocation patterns between root and leafs of Avicennia schaueriana as adaptive response to different levels of metals in mangrove system

Espírito Santo estuaries (Brazil) are impacted by industrial activities, resulting in contamination of water and sediments. This raise questions on biological uptake, storage and consequences of metal contamination to mangrove plants. The goal of this work was evaluating accumulation and translocation of metals from sediment to roots and leaves of Avicennia schaueriana, growing in areas with different degrees of contamination, correlating bioaccumulation with changes in its root anatomy. Highest bioconcentration factors (BCFs) were observed in plants growing in less polluted areas. Conversely, highest translocation factors were found in plants from highest polluted area, evidencing an adaptive response of A. schaueriana to less favourable conditions. Namely, the absorption of metals by roots is diminished when facing highest levels of metals in the environment; alternatively, plants seem to enhance the translocation to diminish the concentration of toxic metals in roots. Root also responded to highly polluted scenarios with modifications of its anatomy.

Fil: Souza, Iara da C.. Universidade Federal do São Carlos; Brasil

Fil: Rocha, Lívia D.. Universidade Federal do Espírito Santo; Brasil

Fil: Morozesk, Mariana. Universidade Federal do São Carlos; Brasil

Fil: Bonomo, Marina M.. Universidade Federal do São Carlos; Brasil

Fil: Arrivabene, Hiulana P.. Universidade Federal do Espírito Santo; Brasil

Fil: Duarte, Ian D.. Universidade Federal do Espírito Santo; Brasil

Fil: Furlan, Larissa M.. Universidade Federal do Espírito Santo; Brasil

Fil: Monferran, Magdalena Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Ciencia y Tecnología de Alimentos Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Ciencia y Tecnología de Alimentos Córdoba; Argentina

Fil: Mazik, Krysia. University of Hull; Reino Unido

Fil: Elliott, Michael. University of Hull; Reino Unido

Fil: Matsumoto, Silvia T.. Universidade Federal do Espírito Santo; Brasil

Fil: Milanez, Camilla R.D.. Universidade Federal do Espírito Santo; Brasil

Fil: Wunderlin, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Ciencia y Tecnología de Alimentos Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Ciencia y Tecnología de Alimentos Córdoba; Argentina

Fil: Fernandes, Marisa N.. Universidade Federal do São Carlos; Brasil