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


TABUR S. , Demir K.

PLANT GROWTH REGULATION, cilt.58, ss.119-123, 2009 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 58 Konu: 1
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1007/s10725-008-9357-5
  • Dergi Adı: PLANT GROWTH REGULATION
  • Sayfa Sayıları: ss.119-123

Özet

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.