Anthocyanins: Possible antioxidants against Cr (VI) induced oxidative stress in Spirodela polyrrhiza

Viktor Oláh, Zsolt Combi, Erzsébet Szollosi, Péter Kanalas, Ilona Mészáros

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Anthocyanins, the main representative of the large plant pigment group, flavonoids exhibit a wide appaerance in plants but their actual physiological role is still unclear. Several stress factors induce elevation of anthocyanin content in plant tissues which suggests their possible participation in the antioxidant defense mechanisms. Duckweed Spirodela polyrrhiza accumulate considerable amounts of anthocyanins on its abaxial frond surface. In this work we investigated the effects on Cr (VI) (0-100 μM) on growth and the relationship between growth rate and leaf anthocyanin content in axenic cultures of two S. polyrrhiza ecotypes. We hypothesized that anthocyanin accumulation capacity of plants would influence the development of oxidative damage and reduction of growth under Cr (VI) treatments. S. polyrrhiza ecotype with lower anthocyanin production exhibited stronger growth potential under growth conditions but it responded more sensitively to Cr (VI). On the other hand the S. polyrrhiza ecotype with constitutive anthocyanin accumulation showed slower growth but higher tolerance against Cr (VI). Furthermore these results also suggest that ecotypedependent differences in anthocyanin accumulation of this species may at least partly explain the observed differences in growth rates of two ecotypes under Cr (VI) stress.

Original languageEnglish
Pages (from-to)533-536
Number of pages4
JournalCereal Research Communications
Volume37
Issue numberSUPPL.1
DOIs
Publication statusPublished - Dec 31 2009

    Fingerprint

Keywords

  • Anthocyanins
  • Chromium (VI)
  • Duckweed
  • Heavy metal
  • Stress

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Genetics

Cite this