RT Journal Article T1 Contribution of phytochelatins to cadmium tolerance in peanut plants A1 Bianucci, Eliana A1 Sobrino Plata, Juan A1 Carpena-Ruiz, Ramón A1 Tordable, María del Carmen A1 Fabra, Adriana A1 Hernández, Luis A1 Castro, Stella AB Cadmium (Cd) is a well known heavy metal considered as one of the most toxic metals on Earth, affecting all viable cells that are exposed even at low concentration. It is introduced to agricultural soils mainly by phosphate fertilizers and causes many toxic symptoms in cells. Phytochelatins (PCs) are non-protein thiols which are involved in oxidative stress protection and are strongly induced by Cd. In this work, we analyzed metal toxicity as well as PCs implication on protection of peanut plants exposed to Cd. Results showed that Cd exposure induced a reduction of peanut growth and produced changes in the histological structure with a deposit of unknown material on the epidermal and endodermal cells. When plants were exposed to 10 μM Cd, no modification of chlorophyll, lipid peroxides, carbonyl groups, or hydrogen peroxide (H2O2) content was observed. At this concentration, peanut leaves and roots glutathione (GSH) content decreased. However, peanut roots were able to synthesize different types of PCs (PC2, PC3, PC4). In conclusion, PC synthesis could prevent metal disturbance on cellular redox balance, avoiding oxidative damage to macromolecules. PB Oxford University Press SN 1756-5901 YR 2012 FD 2012 LK https://hdl.handle.net/20.500.14352/99055 UL https://hdl.handle.net/20.500.14352/99055 LA eng NO Eliana Bianucci, Juan Sobrino-Plata, Ramón O Carpena-Ruiz, María del Carmen Tordable, Adriana Fabra, Luis E Hernández, Stella Castro, Contribution of phytochelatins to cadmium tolerance in peanut plants, Metallomics, Volume 4, Issue 10, October 2012, Pages 1119–1124, https://doi.org/10.1039/c2mt20146a NO Universidad Nacional de Río Cuarto (Argentina) NO ¡Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina) NO Junta de Comunidades de Castilla-La Mancha NO Comunidad de Madrid DS Docta Complutense RD 7 abr 2025