| Author(s) | Muna M. Al-Rumaih |
| Affiliation | Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495 Saudi Arabia |
| Title | Influence of Cadmium on Lipid Levels of Cowpea, Vigna unguiculata L. in the Presence or Absence of Gibberellic acid |
| Source | Journal of King Saud University. Agricultural Sciences. Volume 16, No 1. (2004/1424) |
| Abstract | In this study, an attempt has been made to investigate the toxicity of cadmium(Cd), which is widely spread in the environment and is highly toxic and dangerous .In view of the role played by gibberellic acid (GA3 ) in counteracting the inhibitory effect of Cd , the present study was undertaken to investigate the effect of various concentrations (0, 20, 40, 80, 160 ppm) of cadmium chloride (CdCl2) in the presence or absence of 100 ppm GA3 on the lipid content of cowpea, Vigna unguiculata L., roots and shoots at three vegetative stages (early, intermediate, late) . In the presence of CdCl2 , the lipid content of Vigna unguiculata roots and shoots decreased progressively in a dose-dependent manner. This decreasing tendency was more significant at the later phenological phases of plant growth . However, when GA3 was applied simultaneously with different concentrations of CdCl2 , the Cd-induced reduction in lipid levels was alleviated to different degrees particularly at the lower Cd doses and during the intermediate stage, followed by the early stage of Vigna unguiculata plant development . Roots were more significantly affected by Cd treatment and less significantly affected by the combined treatment of Cd and GA3 . Keywords: Cadmium, gibberellic acid, toxicity, Vigna unguiculata . |
