Cytogenetic response of 24-epibrassinolide on the root meristem cells of barley seeds under salinity


TABUR S. , Demir K.

PLANT GROWTH REGULATION, vol.58, no.1, pp.119-123, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 58 Issue: 1
  • Publication Date: 2009
  • Doi Number: 10.1007/s10725-008-9357-5
  • Title of Journal : PLANT GROWTH REGULATION
  • Page Numbers: pp.119-123

Abstract

Cytogenetic response of 24-epibrassinolide (EBR) and different NaCl concentrations (0.30, 0.35 and 0.40 M, molar) on root meristem cells of barley were analysed. Plants grown on media containing 0.30, 0.35 and 0.40 M NaCl showed a significant decrease of mitotic index and higher number of chromosomal abnormalities as compared to those of control conditions. Also, the mitotic index approximately 50% decreased in EBR- treated samples and chromosomal abnormalities almost tipled those of control. EBR pretreatment in higher concentrations of salt (0.40 M NaCl) caused total inhibition of mitotic activity in root-tip cells. However, comparison of all concentrations of salt and control revealed to have a successful performance in ameliorating of the detrimental effects of salinity on chromosomal abnormalities.