Effects of the herbicide linuron on somatic chromosomes of Helianthus annuus L. (Sunflower)


Inceer H. , ERYIGIT H. N. , BEYAZOGLU O.

CARYOLOGIA, vol.57, no.2, pp.127-132, 2004 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 57 Issue: 2
  • Publication Date: 2004
  • Doi Number: 10.1080/00087114.2004.10589381
  • Title of Journal : CARYOLOGIA
  • Page Numbers: pp.127-132

Abstract

In this study the effects of the herbicide linuron on somatic chromosomes of Helianthus annuus L were investigated. The roots were treated with 30, 120, 240 and 500 ppm concentration of linuron for 3, 6 and 12 hours. The mitotic and phase indexes were determined and chromosomal abnormalities were investigated in both control and test groups. It was found that linuron had a marked mitodepressive action on mitosis. The types of chromosomal abnormalities observed included: fragments, disturbed metaphase, c-mitosis, lagging chromosome, and chromatid bridge. A pronounced toxic effect is observed in concentrations 120 ppm and above its. It is considered that linuron may have genotoxic effects in higher plants.