|International Research Journal of Agricultural Science and Soil Science (ISSN: 2251-0044) Vol. 3(12) pp. 408-415, December 2013. DOI: http:/dx.doi.org/10.14303/irjas.2013.127. Copyright © 2013 International Research Journals
Full Length Research Paper
Effect of Gamma Irradiation or Potassium on Some Primary and Secondary Metabolites of Brassica rapa (L.) Root Under Cadmium Stress
Shaimaa Abd El-Hameed Abo-Hamad, Khalil Mahfouz Ghareeb Saad -Allah, Essam El-Deen Mohammed Abo-Kassem
Botany Department, Faculty of Science, Tanta University, Tanta, Egypt
Received November 14, 2013; Accepted December 18, 2013
The effect of cadmium chloride concentrations (25 50 75 and 100 mg/kg soil), seeds pre-irradiated by low doses of gamma rays (15 30 45 and 60 Gy), potassium chloride (60 mg/kg soil) and the combination of cadmium with gamma and cadmium with potassium on Brassica rapa primary and secondary metabolites at different growth stages were investigated. It was found that, combination of low doses of gamma or potassium with cadmium significantly increased the root soluble protein content at the various growth stages compared with the content of plants singly treated with cadmium. Proline, alkaloids and phenolic compounds were accumulated in roots in response to cadmium compared with the control and their accumulation was magnified by gamma irradiation. This suggested an important role for these compounds in plant response to cadmium pollution.
Keywords: Brassica rapa, cadmium chloride, gamma irradiation, potassium, proteins, proline, alkaloids and phenolics.
Search Other Articles by author(s)
List of Other Journals
- International Research Journal of Microbiology
- Journal of Research in Environmental Science and Toxicology
- International Research Journal of Police Science, Criminal Law and Criminology
- International Research Journal of Biotechnology
- International Research Journal of Basic and Clinical Studies
- See Full List