Biological responses of a non-target aquatic plant (Nasturtium officinale) to the herbicide, tribenuron-methyl


DUMAN F. , UREY E., TEMİZGÜL R. , BOZOK F.

WEED BIOLOGY AND MANAGEMENT, vol.10, no.2, pp.81-90, 2010 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 10 Issue: 2
  • Publication Date: 2010
  • Doi Number: 10.1111/j.1445-6664.2010.00372.x
  • Title of Journal : WEED BIOLOGY AND MANAGEMENT
  • Page Numbers: pp.81-90
  • Keywords: anti-oxidant enzyme, biological response, growth, lipid peroxidation, Nasturtium officinale, tribenuron-methyl, METSULFURON-METHYL, OXIDATIVE STRESS, CHLORIMURON-ETHYL, HYDROGEN-PEROXIDE, GROWTH, WHEAT, L., ANTIOXIDANTS, RESIDUES, ARSENATE

Abstract

To assess its response to the herbicide, tribenuron-methyl, samples of Nasturtium officinale were exposed to 0, 0.01, 0.05, 0.1, and 0.5 mg L-1 of tribenuron-methyl for 1, 2, 4 and 7 days. The influence of this herbicide on the relative growth rate, electrolyte leakage, lipid peroxidation, photosynthetic pigmentation, protein content, and performance of anti-oxidant enzymes, such as superoxide dismutase (SOD), catalase, and ascorbate peroxidase (APX), was examined. The results indicated that tribenuron-methyl, applied at 0.5 mg L-1, affected plant growth negatively. It also was determined that chlorophyll a is the most responsive photosynthetic pigment to tribenuron-methyl exposure. Under stress conditions, the anti-oxidant enzymes were up-regulated compared to the control. The SOD activity was significantly stimulated, while the activity of APX was inhibited. A significant correlation was found between lipid peroxidation and SOD activity. The exposure period and herbicide concentration had significant effects on the biological responses against tribenuron-methyl stress. These results may be useful for clarifying the effect of herbicides on non-target aquatic plants.