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Biologia Plantarum

, Volume 38, Issue 2, pp 281–287 | Cite as

The role of sulphur in detoxication of cadmium in young sugar beet plants

  • M. Popović
  • S. KevreŠan
  • J. Kandrač
  • J. Nikolić
  • N. Petrović
  • R. Kastori
Original Paper

Abstract

In young sugar beet plants cadmium suppressed the activity of nitrate reductase, glutamine synthetase and glutamate dehydrogenase, whereas sulphur exhibited a protective role towards activity of these enzymes, except of glutamine synthetase. Protein synthesis was suppressed in the absence of S in nutrient medium; the lowest level was at 10-3 M Cd2+. Chloroplast pigment contents were increased by S while Cd2+, even in the lowest concentration, (10−5 M) showed a repressive effect. The highest concentrations of Cd2+ (10−3 M) caused a decrease in dry mass, whereas S induced its increase. Nitrate content was increased in the presence of Cd2+ and decreased by increased concentration of S.

Additional key words

tBeta vulgaris L carotenoids chlorophyll glutamate dehydrogenase glutamine synthetase nitrate reductase protein biosynthesis 

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Copyright information

© Institute of Experimental Botany, ASCR 1996

Authors and Affiliations

  • M. Popović
    • 1
  • S. KevreŠan
    • 1
  • J. Kandrač
    • 1
  • J. Nikolić
    • 1
  • N. Petrović
    • 2
  • R. Kastori
    • 2
  1. 1.Institute of Chemistry, Faculty of SciencesUniversity of Novi SadNovi SadYugoslavia
  2. 2.Faculty of Agriculture, University of Novi SadNovi SadYugoslavia

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