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 27 abr 2025