Foliar Application of Iron (Fe) Improved the Antioxidant Defense and Cd Accumulation Potential of <Emphasis Type="Italic">Ricinus communis</Emphasis> Under Hydroponic Condition |
| |
| Authors: | Sana Ullah Fazal Hadi Nasir Ali Sikandar Khan |
| |
| Institution: | 1.Department of Biotechnology,University of Malakand,Chakdara Dir (L),Pakistan;2.School of Food and Chemical Engineering,Beijing Technology and Business University,Beijing,China;3.School of Environmental Science and Engineering,Sun Yat-Sen University,Guangzhou,People’s Republic of China;4.Department of Biotechnology and Microbiology,Sarhad University of Science and Information Technology,Peshawar,Pakistan;5.Department of Biotechnology,Shaheed Benazir Bhutto University,Sheringal,Pakistan;6.College of Life Science and Technology,Beijing University of Chemical Technology,Beijing,China |
| |
| Abstract: | Heavy metal-polluted water has become a problem for sustainable environment, agriculture, and human health. Phyto-accumulation is an eco-friendly technique for decontamination of metal-polluted water and soil. The efficiency of phyto-accumulation and rhizo-filtration can be enhanced by the application of certain nutrients to accumulator plants. In this study, we focused on the role of iron (Fe) in rhizo-filtration and phyto-accumulation of cadmium (Cd) from polluted water/media, using Ricinus communis plant. Medium was contaminated with 10 ppm Cd while Fe (2.50, 5.00, and 7.50 ppm) was applied both as foliar spray and medium addition separately. Accumulation of Cd and concentrations of soluble proline, phenolic compounds, and chlorophylls were measured in plant tissues. Addition of Fe into media significantly increased biomass in the plants but decreased Cd absorption by roots and its accumulation in other tissues of the plants. Foliar application of Fe, especially 7.5 ppm, significantly increased biomass as well as accumulation of Cd in tissues of the plants. Contents of soluble proline (41.88?±?3.56 ppm) and phenolics (171.00?±?4.98 ppm) in leaves were highly increased by foliar spray of 7.5 ppm Fe on the plants. On the other hand, highest concentrations of free proline (67.00?±?2.00 ppm) and total phenolics (82.67?±?2.52 ppm) in plant roots were observed in 7.5 ppm Fe added to media and as foliar spray, respectively. Strong correlations were observed between phenolics content in roots and leaves with Cd accumulation after foliar application of 7.5 ppm Fe. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
