The metabolic effects of mercury during the biological cycle of vines (Vitis vinifera)

PABLO PACHECO; LUIS MARTINEZ; KEATON NAHAN; ADRIÁN SPISSO; JULIO LANDERO; ERNESTO VERNI

BIOMETALS

SPRINGER

Año: 2018 p. 243 - 254

0966-0844

Mercury (Hg) is a major environmental pollutant that can be disposed to the environment by human activities, reaching crops like vineyards during irrigation with contaminated waters. A 2-year study was performed to monitor Hg variations during reproductive and vegetative stages of vines after Hg supplementation. Variations were focused on total Hg concentration, the molecular weight of Hg fractions and Hg-proteins associations in roots, stems and leaves. Total Hg concentrations increased during reproductive stages and decreased during vegetative stages. Variations in length of these stages were observed, according to an extension of the vegetative period. Six months post Hg administration, in roots, stems and leaves, initial Hg proteic fractions of 200 kDa were catabolized to 66 kDa fractions.