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Biologia Plantarum

, Volume 49, Issue 4, pp 617–619 | Cite as

Influence of lead on membrane permeability and lipoxygenase activity in lupine roots

  • R. Rucinska
  • E. A. Gwozdz
Brief Communication

Abstract

Lead nitrate at concentration of 150 mg dm−3 inhibits root growth of Lupinus luteus seedlings by bout 20 %, which is accompanied by an increase of K+ leakage from the root cells. Non-denaturing isoelectric focusing in polyacrylamide slab gel has shown that lead stimulates the activity of most lipoxygenase isoenzymes and induces one additional isoenzyme with pI 6.9.

Additional key words

K+ leakage lipid peroxidation Lupinus luteus 

Abbreviations

LOX

lipoxygenase

MDA

malondialdehyde

TBArm

thiobarbituric acid reactive metabolites

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Copyright information

© Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Praha 2005

Authors and Affiliations

  1. 1.Laboratory of Plant Ecophysiology, Faculty of BiologyAdam Mickiewicz UniversityPoznanPoland

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