Original scientific paper

DRY MATTER ACCUMULATION AND PHOTOSYNTHETIC PIGMENTS CONTENT IN RADISH (Raphanus sativus L.) AS INDICATORS OF COPPER AND LEAD TOXICITY

Miroslav Lisjak orcid.org/0000-0003-2018-4903 ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Meri Engler ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Boris Đurđević ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Krunoslav Karalić ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Nada Parađiković ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia

Abstract

The involvement of heavy metals in plant metabolism leads to the alterations of specific metabolic pathways such as organic matter synthesis. The plantlets of three radish cultivars have been exposed to 0.5 mM Cu or Pb in nutrient solution for 48 h. The content of photosynthetic pigments was determined spectrophotometrically and expressed on leaf fresh and dry matter basis. The lower dry matter accumulation in leaves and hypocotylls of stressed plants was accompanied by the relative increment of pigments content in leaf dry matter. This research showed that the photosynthetic pigments content in short exposure conditions to mentioned heavy metals was inaccurate indicator of their toxicity in radish.

Keywords

carotenoids; chlorophylls; copper; heavy metals; lead; radish; stress

Hrčak ID:

31219

URI

https://hrcak.srce.hr/31219

Publication date:

18.12.2008.

Article data in other languages: croatian

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