Ability of poplar (Populus spp.) to detoxify chloroacetanilide herbicides

T. Kőmíves, G. Gullner, Heinz Rennenberg, John E. Casida

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The ability of poplar trees to resist chemical stress caused by chloroacetanilide herbicides was studied. Detached leaves of Lombardy poplar (Populus nigra L.) were exposed to seven chloroacetanilide herbicides via uptake through the cut petiole. The leaves showed high tolerance against the phytotoxicity of these compounds. Their tolerance was further enhanced by treatment with 2-oxothiazolidine-4-carboxylic acid (OTC, a precursor of the amino acid cysteine). High levels of glutathione (GSH) and GSH S-transferase (GST) activity were detected in poplar leaves. Treatments with chloroacetanilide herbicides left the GSH content in the leaves unchanged but strongly induced the GST activity. In contrast, in OTC-treated leaves increased GSH contents were measured, but GST activities remained unchanged. It therefore appears that a highly active and inducible GSH-conjugation Phase II detoxification system in their leaves may make poplar trees useful for phytoremediation of soils contaminated with chloroacetanilide herbicides. Based on these findings a phytoremediation project using different poplar hybrids at a site heavily polluted with such compounds in Hungary has been launched.

Original languageEnglish
Pages (from-to)277-283
Number of pages7
JournalWater, Air, and Soil Pollution: Focus
Volume3
Issue number3
DOIs
Publication statusPublished - 2003

Fingerprint

Herbicides
herbicide
phytoremediation
Detoxification
tolerance
Carboxylic acids
Amino acids
phytotoxicity
carboxylic acid
detoxification
Soils
amino acid

Keywords

  • Chloroacetanilide herbicides
  • Glutathione
  • Glutathione S-transferase
  • Phytoremediation
  • Pollution
  • Poplar
  • Soil

ASJC Scopus subject areas

  • Pollution
  • Earth and Planetary Sciences(all)
  • Earth-Surface Processes

Cite this

Ability of poplar (Populus spp.) to detoxify chloroacetanilide herbicides. / Kőmíves, T.; Gullner, G.; Rennenberg, Heinz; Casida, John E.

In: Water, Air, and Soil Pollution: Focus, Vol. 3, No. 3, 2003, p. 277-283.

Research output: Contribution to journalArticle

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