Role of Secondary Metabolites for the Mitigation of Cadmium Toxicity in Sorghum Grown Under Mycorrhizal Inoculated Hazardous Waste Site
Apart from the many primary metabolites like carbohydrate, proteins, fats, and hormones, a number of organic compounds in plants are not synthesized in the principle stream, but they are most important for the plant functions. These compounds are secondary metabolites broadly classified in terpenes, alkaloids, and phenols. Nowadays, heavy metal contamination is the greatest concern worldwide. The role of secondary metabolites is well acquainted with facts that it imparts the significant effect in the mitigation of heavy metal toxicity in the plants. The FTIR data of the experiments indicate clearly that phenols, aldehyde, and ketones will play the critical role in the regulation of heavy metal toxicity in plants.
KeywordsCadmium Phenol Secondary Metabolites Sorghum Toxicity
Authors are thankful to Lovely Professional University, Jalandhar, Punjab, and the Department of Plant Physiology, Institute of Agricultural Sciences, Banaras Hindu University for providing the support for this work.
- Baker, A. J. M., McGrath, S. P., Reeves, R. D., & Smith, J. A. C. (2000). Metal hyperaccumulator plants: a review of the ecology and physiology of a biological resource for phytoremediation of metal-polluted soils. Boca Raton: Lewis Publisher.Google Scholar
- Bouwman, L. A., Bloem, J., Romkens, P. F. A. M., & Japenga, J. (2005). EDGA amendment of slightly heavy metal loaded soil affects heavy metal solubility, crop growth and microbivorous nematodes but not bacteria and herbivorous nematodes. Soil Biology and Biochemistry, 37, 271–278.CrossRefGoogle Scholar
- Hrynkiewicz, K., Dabrowska, G., Baum, C., Niedojadlo, K., & Leinweber, P. (2012). Interactive and single effects of ectomycorrhiza formation and Bacillus cereus on metallothionein mt1 expression and phytoextraction of Cd and Zn by willows. Water Air Soil Pollution, 223, 957–968.CrossRefGoogle Scholar
- Majewska, M., & Kurek, E. (2005). Effect of microbial activity on Cd sorption/desorption processes in soil polluted with various Cd sources. Geological Research Abstract, 7, 04332.Google Scholar
- McGrath, S. P., Zhao, J., & Lombi, E. (2002). Phytoremediation of metals, metalloids, and radionuclides. In Advances in agronomy (pp. 1–56). London: Academic.Google Scholar
- Vivas, A., Voros, I., Biro, B., Barea, J. M., Ruiz-Lozano, J. M., & Azcon, R. (2003). Beneficial effects of indigenous Cd tolerant and Cd-sensitive Glomus mosseae associated with a Cd-adapted strain of Brevibacillus sp. in improving plant tolerance to Cd contamination. Applied Soil Ecology, 24, 177–186.CrossRefGoogle Scholar