A comparative ionomic approach focusing on cadmium effects in sunflowers (Helianthus annuus L.)

Autor(es)

Lopes Junior, Cicero Alves ^[1] ; Mazzafera, Paulo ^[2] ; Zezzi Arruda, Marco Aurelio ^{[1, 3]}

Afiliação do(s) autor(es)

^[1] State Univ Campinas Unicamp, Inst Chem, Spectrometry Sample Preparat & Mechanizat Grp GEP, BR-13083970 Campinas, SP - Brazil

^[2] State Univ Campinas UNICAMP, Inst Biol, Dept Plant Biol, BR-13083970 Campinas, SP - Brazil

^[3] State Univ Campinas Unicamp, Natl Inst Sci & Technol Bioanalyt, Inst Chem, BR-13083970 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ENVIRONMENTAL AND EXPERIMENTAL BOTANY; v. 107, p. 180-186, NOV 2014.
• Citações Web of Science: 24

Resumo

This work explores a comparative ionomic approach by evaluating sunflower growth under different cultivation conditions after adding ca. 50,350 and 700 mg of cadmium (as cadmium chloride) during the cultivation period. Treated and non-treated plants were also compared in terms of some monitored ions (Cu-63(+), Fe-56(+), (PO+)-P-31-O-16, Mg-24(+), Mn-55(+), Zn-64(+)) using ICP-MS. Besides necrosis, chlorosis was also detected in Cd-treated plants with the highest cadmium dose. Additionally, the uptake of cadmium produced an imbalance in copper and zinc sunflower homeostasis, as well as on other elements such as iron, phosphorus, magnesium and manganese considered essential for photosynthesis. (C) 2014 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 12/21344-7 - Estudos metalômicos aplicados a espécies geneticamente modificadas de soja [Glycine max (L.) Merrill] e Arabidopsis thaliana
• Beneficiário: Marco Aurelio Zezzi Arruda
• Modalidade de apoio: Auxílio à Pesquisa - Regular