Department of Bioscience and Biotechnology, Banasthali Vidyapith, Rajasthan, 304022, India.
Environ Sci Pollut Res Int. 2020 Aug;27(24):29954-29966. doi: 10.1007/s11356-020-09233-x. Epub 2020 May 22.
Soil pollution is rapidly increasing due to industrialization and urbanization. Heavy metal pollution raised concern because of its possible impact on plants and humans. Helianthus annuus L. is a good hyperaccumulator plant, used for the removal of heavy metals because of its phytoremediation efficiency. In the present study, we cultivated H. annuus plants in industrial contaminated soil collected from various industries like plastic, paper, dye, and textile of different areas of Jaipur (Rajasthan), Kashipur, Jaspur, and Bajpur (Uttrakhand), India. Plantlets accumulated a different range of Pb, Cd, Zn, Cu, Fe, and As (0.62-158.29, 0.8-59.6, 0.81-166.5, 0.09-101.89, 2.06-53.25, and 0.002-2.55 mg kg, respectively) from the industrial soil samples. Heavy metal analysis was done using flame and graphite furnace atomic absorption spectrophotometer. The effects of heavy metals were analyzed by studying the morphological, biochemical, and antioxidant enzymatic analysis. The results revealed that industrial contaminated soil had a significant impeding effect on the plantlets of H. annuus as noticed by the reduction in growth parameters compared to the standard. Furthermore, one-way ANOVA and principal component analysis (PCA) were applied for statistical analysis and to determine the correlation between plant growth parameters, removed heavy metals, and biochemical. Thus, this study will be helpful for the decontamination of highly affected industrial soil.
由于工业化和城市化，土壤污染正在迅速加剧。重金属污染引起了人们的关注，因为它可能对植物和人类造成影响。向日葵是一种很好的超积累植物，由于其具有植物修复效率，被用于去除重金属。在本研究中，我们在从印度拉贾斯坦邦的不同地区（如塑料、造纸、染料和纺织）的各个行业收集的工业污染土壤中种植了向日葵植物。植物吸收了不同范围的 Pb、Cd、Zn、Cu、Fe 和 As（分别为 0.62-158.29、0.8-59.6、0.81-166.5、0.09-101.89、2.06-53.25 和 0.002-2.55 mg kg）。使用火焰和石墨炉原子吸收分光光度计对重金属进行分析。通过研究形态学、生物化学和抗氧化酶分析来分析重金属的影响。结果表明，与标准相比，工业污染土壤对向日葵植物的生长参数有显著的抑制作用。此外，我们还进行了单因素方差分析（One-way ANOVA）和主成分分析（PCA），以进行统计分析并确定植物生长参数、去除的重金属和生物化学之间的相关性。因此，这项研究将有助于对受影响严重的工业土壤进行脱污染。
