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Effects of heavy metals on enzyme synthesis in substrate-amended river sediments

  • M. Wainwright
  • J. E. Duddridge
Article

Summary

The effects of heavy metals in diverse substrateamended river sediments were studied. Cd2+, Pb2+ and Zn2+ generally had a marked inhibitory effect on the synthesis of amylase, cellulase and urease, on numbers of substrate-hydrolysing bacteria, in all sediments studied. Inhibition increased with increasing metal concentration, and amylase was particularly sensitive. Pb2+ generally had the least effect. We conclude that enzyme synthesis measurements are useful in determining the effects of heavy metals on the degradation of organic pollutants in river sediments.

Keywords

Enzyme Heavy Metal Cellulase Metal Concentration Amylase 
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Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • M. Wainwright
    • 1
  • J. E. Duddridge
    • 1
  1. 1.Department of MicrobiologyUniversity of SheffieldSheffieldEngland

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