Effects of herbicide stress on wheat cultivars from organic and conventional cropping systems

Marja Uotila, Tamás Kömives

Research output: Contribution to journalArticle

Abstract

Wheat (Triticum aestivum L.) seedlings grown from seeds produced in 'organic' (non-chemical) and 'conventional' cropping systems are characterized by a) similar rates of root and shoot growth, b) equal sensitivity to phytotoxicity by the herbicide glyphosate, and c) equivalent basal activity of the enzyme glutathione S-transferase (both in the roots and in the shoots). In addition, treatment of these seedlings with glyphosate leads to significantly higher contents of this enzyme both in the shoots and in the roots. However, time course and dose response investigations indicate significant differences in the induction pattern of glutathione S- transferase: the response of 'conventional' wheat seedlings takes place earlier and with higher efficiency, than that of the 'organic' ones.

Original languageEnglish
Pages (from-to)585-590
Number of pages6
JournalJournal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes
Volume31
Issue number3
DOIs
Publication statusPublished - Jan 1 1996

Keywords

  • gene activation
  • glutathione S- transferase
  • glyphosate
  • herbicide stress
  • organic farming
  • wheat

ASJC Scopus subject areas

  • Food Science
  • Pollution

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