Patra Deepak Kumar, Pradhan Chinmay, Patra Hemanta Kumar
Post-Graduate Department of Botany, Utkal University, Bhubaneswar 751004, India.
Post-Graduate Department of Botany, Utkal University, Bhubaneswar 751004, India.
Chemosphere. 2018 Feb;193:793-799. doi: 10.1016/j.chemosphere.2017.11.062. Epub 2017 Nov 14.
Chromium (Cr) contamination in soil is a growing concern in sustainable agricultural production and food safety. Remediation of Cr from contaminated soils is a challenging task which may not only help in sustaining agriculture but also in minimizing adverse environmental impacts. Pot culture experiments were performed with the application of varied concentration of Cr to assess the Chromium accumulation potential of Lemongrass and to study the impact of toxic concentration of Cr on morphological, physiological and biochemical parameters of the plant. The results showed an increasing accumulation trend of Chromium with increasing Chromium concentrations in both root and shoot of 60 days old Lemongrass plants, while the protein and chlorophyll contents decreased. Similarly, accumulation of Cr increased the levels of proline and antioxidant enzymes indicating the enhanced damage control activity. The potentiality of the plant with the capacity to accumulate and stabilize Cr compound in Cr contaminated soil by phytoremediation process has been explored in the present investigation.
土壤中的铬（Cr）污染在可持续农业生产和食品安全方面日益受到关注。从受污染土壤中修复铬是一项具有挑战性的任务，这不仅有助于维持农业生产，还能将对环境的不利影响降至最低。通过施加不同浓度的铬进行盆栽试验，以评估柠檬草对铬的积累潜力，并研究铬的毒性浓度对植物形态、生理和生化参数的影响。结果表明，60日龄柠檬草植株的根和地上部分中，随着铬浓度的增加，铬的积累呈上升趋势，而蛋白质和叶绿素含量则下降。同样，铬的积累增加了脯氨酸和抗氧化酶的水平，表明损伤控制活性增强。本研究探讨了该植物通过植物修复过程在铬污染土壤中积累和稳定铬化合物的能力。
