Post-Graduate Department of Botany, Utkal University, Bhubaneswar, 751004, India.
Post-Graduate Department of Botany, Utkal University, Bhubaneswar, 751004, India.
Chemosphere. 2019 Mar;218:1082-1088. doi: 10.1016/j.chemosphere.2018.11.211. Epub 2018 Nov 30.
Lemon grass plants grown in Cr rich over burden soil of Sukinda chromite mine (India) countered Cr toxicity and oxidative stress with the production of reactive oxygen species and induced antioxidative defense system. Varied percentage of Cr rich over burden soil was applied to lemon grass pants to evaluate the actions of oxidative inhibitors enzymes extracted and assayed from both roots and shoots. The study also assessed the oil content and its composition in response to the different percentage of Cr available in over burden soil. In order to evaluate the defense system of a plant against oxidative stress and determine the level of reactive oxygen species, the experiments were undertaken in the presence and absence of Cr in soils. The results indicated that the action of oxidative inhibitor enzymes increased significantly in roots as compared to shoots with increasing concentration of Cr in overburden soil. Higher concentration of Cr in soils inhibited the enzyme activity both in roots and shoots. The level of ROS in plants also enhanced with the increase in the concentration of Cr in the soil. In order to control the oxidative damage in plants, lemon grass can be considered defensive in nature to build up the antioxidant system which can scavenge the reactive oxygen species (ROS).
在印度 Sukinda 铬铁矿的富铬废石土壤中种植的柠檬草植物，通过产生活性氧物质和诱导抗氧化防御系统来对抗铬毒性和氧化应激。将不同比例的富铬废石土应用于柠檬草植物，以评估从根部和茎部提取和测定的氧化抑制剂酶的作用。该研究还评估了油含量及其组成，以响应废土中可用铬的不同百分比。为了评估植物对氧化应激的防御系统并确定活性氧的水平，在土壤中存在和不存在铬的情况下进行了实验。结果表明，随着废土中铬浓度的增加，根部的氧化抑制剂酶活性比茎部显著增加。土壤中较高浓度的铬抑制了根部和茎部的酶活性。植物中 ROS 的水平也随着土壤中 Cr 浓度的增加而升高。为了控制植物中的氧化损伤，柠檬草可以被认为是具有防御性质的，可以建立抗氧化系统，清除活性氧物质 (ROS)。
