Polyamines and paraquat toxicity in Arabidopsis thaliana

Jasmina Kurepa, Jan Smalle, Marc Van Montagu, Dirk Inzé

Research output: Contribution to journalArticlepeer-review

56 Scopus citations


The relationship between paraquat toxicity and polyamine levels was analyzed in Arabidopsis wild-type and gi-3 plants. Paraquat treatment led to an increase in putrescine, but not of spermidine and spermine content. Additionally, polyamine feeding offered high levels of protection against paraquat toxicity with spermidine being the most effective protectant.

Original languageEnglish
Pages (from-to)987-992
Number of pages6
JournalPlant and Cell Physiology
Issue number9
StatePublished - Sep 1998

Bibliographical note

Funding Information:
The authors are grateful to Mike May for critical reading of the manuscript, and thank Karel Spruyt for help with photographs and Martine De Cock with the preparation of the manuscript. This work was supported by grants from the Vlaams Actieprogramma Biotechnologie (ETC 002), the International Atomic Energy Agency (No. 5285), the International Human Frontier Science Program (IHFSP RG-434/94M), and the European Union (INTAS 94-774). D.I. is a Research Director of the In-stitut National de Recherche Agronomique (France).


  • Arabidopsis thaliana (L.) Heynh.
  • Late-flowering mutant
  • Oxidative stress
  • Paraquat toxicity
  • Paraquat-tolerant mutant
  • Polyamines

ASJC Scopus subject areas

  • Physiology
  • Plant Science
  • Cell Biology


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