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

Autor(es):Mostrar menos -

Souza, Iara da C. ^[1] ; Rocha, Livia D. ^[2] ; Morozesk, Mariana ^[1] ; Bonomo, Marina M. ^[1] ; Arrivabene, Hiulana P. ^[2] ; Duarte, Ian D. ^[2] ; Furlan, Larissa M. ^[2] ; Monferran, Magdalena V. ^{[3, 4]} ; Mazik, Krysia ^[5] ; Elliott, Michael ^[5] ; Matsumoto, Silvia T. ^[2] ; Milanez, Camilla R. D. ^[2] ; Wunderlin, Daniel A. ^{[3, 4]} ; Fernandes, Marisa N. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Ciencias Fisiol, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Fed Espirito Santo, Dept Ciencias Biol, BR-29075910 Vitoria, Espirito Santo - Brazil

^[3] Univ Nacl Cordoba, CONICET, ICYTAC, RA-5000 Cordoba - Argentina

^[4] Univ Nacl Cordoba, Fac Cs Quim, Dept Quim Organ, RA-5000 Cordoba - Argentina

^[5] Univ Hull, IECS, Kingston Upon Hull HU6 7RX, N Humberside - England

• Tipo de documento: Artigo Científico
• Fonte: Marine Pollution Bulletin; v. 94, n. 1-2, p. 176-184, MAY 15 2015.
• Citações Web of Science: 11

Resumo

Espirito 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. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 14/04832-3 - Estudo da origem e transferência de metais e metaloides em áreas de manguezal, por meio de análises isotópicas na cadeia trófica e efeitos bioquímicos e morfológicos em Centropomus parallelus
• Beneficiário: Iara da Costa Souza
• Modalidade de apoio: Bolsas no Brasil - Doutorado