Padmapriya S, Murugan N, Ragavendran C, Thangabalu R, Natarajan D
a Natural Drug Research Laboratory, Department of Biotechnology Periyar University , Periyar Palkalai Nagar , Salem , Tamilnadu , India.
Int J Phytoremediation. 2016;18(3):288-94. doi: 10.1080/15226514.2015.1085832.
The Pot culture experiment performed for phytoextraction potential of selected agricultural plants [millet (Eleusine coracana), mustard (Brassica juncea), jowar (Sorghum bicolor), black gram (Vigna mungo), pumpkin (Telfairia occidentalis)] grown in metal contaminated soils around the Salem region, Tamilnadu, India. Physiochemical characterization of soils, reported as low to medium level of N, P, K was found in test soils. The Cr content higher in mine soils than control and the values are 0.176 mg/L in Dalmia soil and 0.049 mg/L in Burn & Co soil. The germination rate low in mine soil than control soils (25 to 85%). The content of chlorophyll, carotenoid, carbohydrate and protein decreased in mine soils than control. The morphological parameters and biomass values decreased in experimental plants due to metal accumulation. Proline content increased in test plants and ranged from 0.113 mg g(-1) to 0.858 mg g(-1) which indicate the stress condition due to toxicity of metals. Sorghum and black gram plants reported as metal tolerant capacity. Among the plants, Sorghum produced good results (both biomass and biochemical parameters) which equal to control plant and suggests Sorghum plant is an ideal for remediation of metal contaminated soils.
在印度泰米尔纳德邦塞勒姆地区周边受金属污染的土壤中，对选定的农作物[粟（龙爪稷）、芥菜（印度芥菜）、高粱、黑绿豆、南瓜（西非葫芦）]进行了植物提取潜力的盆栽试验。试验土壤的理化特性显示，氮、磷、钾含量处于低到中等水平。矿区土壤中的铬含量高于对照土壤，达尔米亚土壤中的铬含量为0.176毫克/升，伯恩公司土壤中的铬含量为0.049毫克/升。矿区土壤中的发芽率低于对照土壤（25%至85%）。矿区土壤中叶绿素、类胡萝卜素、碳水化合物和蛋白质的含量低于对照。由于金属积累，试验植物的形态参数和生物量值下降。试验植物中的脯氨酸含量增加，范围在0.113毫克/克至0.858毫克/克之间，这表明金属毒性导致了胁迫状况。高粱和黑绿豆植株具有金属耐受能力。在这些植物中，高粱产生了良好的结果（生物量和生化参数方面），与对照植物相当，这表明高粱植株是修复金属污染土壤的理想选择。
