Repositorio
Institucional

Cartes, Paula

Ribera-Fonseca, Alejandra#Rumpel, Cornelia#de la Luz Mora, Maria#Nikolic, Miroslav

Sodium silicate and calcium silicate differentially affect silicon and aluminium uptake, antioxidant performance and phenolics metabolism of ryegrass in an acid Andisol

CSIRO PUBLISHING

CROP & PASTURE SCIENCE

en

Evidence indicates that silicon (Si) alleviates diverse stresses by improving the antioxidant capacity and phenolics metabolism of plants. We assessed the effect of sodium silicate (Na2SiO3) and calcium silicate (CaSiO3) on Si and aluminium (Al) uptake, antioxidant performance and phenolics (with antioxidant or structural function) of ryegrass cultivated on an acid Andisol under greenhouse conditions. Ryegrass was treated with either sodium silicate or calcium silicate at gradually increasing doses (250, 500 and 1000mg Si kg(-1) soil). Yield and concentrations of Si and Al were measured in roots and two shoot cuts. At the first cut, phenols, antioxidant enzymes, antioxidant capacity, lipid peroxidation and lignin production and composition were also determined. Ryegrass supplied with sodium silicate exhibited the highest Si content. Root Si was closely correlated with Al or Si:Al ratio. Shoot Si uptake increased total phenols and activities of antioxidant enzymes (CAT, APX and POD), but reduced lipid peroxidation. Silicon also changed the lignin production and composition in shoots at the highest sodium silicate dose. Silicon uptake reduced the deleterious effect of soil acidity in ryegrass. Sodium silicate had the greatest influence on the antioxidant system through enhancement of phenols production and antioxidant enzyme activation. Peroxidase activity appears to be associated with increased lignin biosynthesis in plants supplied with sodium silicate.

Artículo original

This work was supported by the FONDECYT project 1161326 and 1120901. We also acknowledge funding under the framework of the ECOSSUD project C13U02 for collaboration between Chilean and French research groups. MN thanks the Serbian Ministry of Education, Science and Technological Development (OI-173028).

Este trabajo fue financiado por los proyectos FONDECYT 1161326 y 1120901. También agradecemos la financiación del proyecto ECOSSUD C13U02 para la colaboración entre grupos de investigación chilenos y franceses. MN agradece al Ministerio de Educación, Ciencia y Desarrollo Tecnológico de Serbia (OI-173028).

10.1071/CP17202

pdf

acid soils# lignin# phenolic compounds# plant nutrition

http://dx.doi.org/10.1071/CP17202

Agriculture, Multidisciplinary

suelos ácidos# lignina# compuestos fenólicos# nutrición vegetal

Agronomía

Ciencias del suelo

Botánica

WOS:000424743200009

Sodium silicate and calcium silicate differentially affect silicon and aluminium uptake, antioxidant performance and phenolics metabolism of ryegrass in an acid Andisol

Artículo original

version publicada

CSIRO PUBLISHING

CROP & PASTURE SCIENCE

Agricultura, Multidisciplinaria

1836-0947

en

ANID FONDECYT 1161326# ANID FONDECYT 1120901#ECOSSUD C13U02#Serbian Ministry of Education, Science and Technological Development OI-173028

ANID FONDECYT 1161326

ANID FONDECYT 1120901

ECOSSUD C13U02]

Serbian Ministry of Education, Science and Technological Development OI-173028

This work was supported by the FONDECYT project 1161326 and 1120901. We also acknowledge funding under the framework of the ECOSSUD project C13U02 for collaboration between Chilean and French research groups. MN thanks the Serbian Ministry of Education, Science and Technological Development (OI-173028).

pdf

hibrida#verde

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