Modulation of antioxidant defense system after long term arsenic exposure in Zantedeschia aethiopica and Anemopsis californica

Carmen Lizette Del-Toro-Sánchez, Florentina Zurita, Melesio Gutiérrez-Lomelí, Brenda Solis-Sánchez, Laura Wence-Chávez, Araceli Rodríguez-Sahagún, Osvaldo A. Castellanos-Hernández, Gabriela Vázquez-Armenta, Fernando Siller-López*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Zantedeschia aethiopica (calla lily) and Anemopsis californica (yerba mansa) are plant species capable of accumulating arsenic (As) and therefore proposed as phytoremediation for removal of As from drinking water. The effects of a continuous 6 month As exposure (34±11. μg/L) from local contaminated groundwater on the antioxidant response of Z. aethiopica and A. californica were evaluated in leaves and stems of the plants bimonthly in a subsurface flow constructed wetland. As increased the activities of the antioxidant enzymes ascorbate peroxidase, glutathione reductase and catalase where higher levels were observed in Z. aethiopica than A. californica. No significant differences were detected on lipid peroxidation levels or antioxidant capacity evaluated by ORAC and DPPH assays or total phenol contents in any part of the plant, although in general the leaves of both plants showed the best antioxidant defense against the metal. In conclusion, Z. aethiopica and A. californica were able to cope to As through induction of a more sensitive enzymatic antioxidant response mechanism.

Original languageEnglish
Pages (from-to)67-72
Number of pages6
JournalEcotoxicology and Environmental Safety
Volume94
DOIs
StatePublished - 1 Aug 2013
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by a grant from the Ministry of Education (Secretaría de Educación Pública) through the Programa de Mejoramiento del Profesorado (PROMEP) and the research grant Conacyt Salud-2010-C01-140590.

Keywords

  • Anemopsis californica
  • Antioxidant response
  • Arsenic
  • Phytoremediation
  • Plants
  • Zantedeschia aethiopica

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