Heavy metals bioremediation by medicinal plants is an important research issue, which has yet to be investigated. Matricaria chamomilla accumulation of soil cadmium (Cd, 0, 10 and 40 mg/kg) and lead (Pb, 0, 60 and 180 mg/kg) affecting plant biochemical properties L. at different growth stages in the greenhouse and field was investigated. The 10-kg experimental pots (located in the greenhouse and field with 80% of field capacity moisture) were filled with the treated soils, and were planted with M. chamomilla L. seeds (three replicates). Plants were sampled to determine their biochemical properties including Cd and Pb contents, pigments, proline (Pro), leaf relative water (LRW), lipid peroxidation (LX), and superoxide dismutase (SOD, EC 1.15. 1.1), and catalase (CAT, EC 1.11.1.6) activities. Soil final concentration of Cd and Pb was also determined. Heavy metal stress significantly decreased plant pigment contents; however, it significantly increased plant PRO, LRW, LX and SOD, and not CAT. Heavy metal, growth stage, growth location, and their interactions significantly affected plant heavy metal concentrations. Interestingly, although significantly higher concentration of Cd was observed in plant aerial part under greenhouse conditions, plant roots had significantly higher concentrations of Cd under field conditions, and it was reverse for Pb. Increased concentration of Cd and Pb significantly enhanced plant Pro content and the highest one was resulted by Pb3 (913.46 mg/g fresh weight) significantly higher than other treatments including Cd3 (595.34 mg/g fresh weight). M. chamomilla is a suitable species for the bioremediation of soils polluted with Cd and Pb.

药用植物对重金属的生物修复是一个重要的研究课题，尚待深入研究。研究了温室和田间不同生长阶段土壤镉（Cd， 0、10和40 mg/kg）和铅（Pb，0、60和180 mg/kg）对植物生化特性的影响。用处理过的土壤填充 10 公斤的实验盆（位于温室和田间，田间水分为 80%），并种植M. chamomillaL.种子（三个重复）。对植物进行取样以确定其生化特性，包括 Cd 和 Pb 含量、色素、脯氨酸 (Pro)、叶片相对水分 (LRW)、脂质过氧化 (LX) 和超氧化物歧化酶 (SOD, EC 1.15. 1.1) 和过氧化氢酶 (CAT , EC 1.11.1.6) 活动。还确定了 Cd 和 Pb 的土壤最终浓度。重金属胁迫显着降低植物色素含量；但是，它显着增加了植物 PRO、LRW、LX 和 SOD，而不是 CAT。重金属、生长阶段、生长位置及其相互作用显着影响植物重金属浓度。有趣的是，尽管温室条件下植物地上部分的 Cd 浓度明显较高，但在田间条件下植物根部的 Cd 浓度明显较高，而 Pb 则相反。M. chamomilla是一种适用于 Cd 和 Pb 污染土壤生物修复的物种。