College of Environmental Science and Engineering, Hunan University, Changsha, China.
Bioresour Technol. 2010 Aug;101(16):6297-303. doi: 10.1016/j.biortech.2010.03.028. Epub 2010 Apr 18.
Hydroponic experiment was carried out to investigate the effect of cadmium (Cd) on growth, Cd accumulation, lipid peroxidation, antioxidative enzymes, leaf chlorophyll, root activity, protein content and Cd uptake kinetics of vetiver grass. The results showed that 1 mg/L Cd in solution led to increased chlorophyll contents, root activity and enhanced the growth of vetiver grass after 15 days, with 2.2% biomass increased compared to the control. Malondialdehyde (MDA) contents were significantly enhanced by all Cd supply levels. The development of toxic symptoms corresponded to a high accumulation of Cd and to the decrease of water content, chlorophyll, protein content and root activity, but to high increase in catalase and peroxidase activities in plants. Cd concentration in shoots and roots increased with increasing Cd supply levels, and reached a maximum of 93 and 2232 mg/kg Cd dry weight at 30 mg/L treatment, respectively.
水培实验研究了镉（Cd）对香根草生长、Cd 积累、脂质过氧化、抗氧化酶、叶片叶绿素、根系活力、蛋白质含量和 Cd 吸收动力学的影响。结果表明，溶液中 1mg/L 的 Cd 在 15 天后导致叶绿素含量增加，根系活力增强，香根草的生长得到增强，与对照相比，生物量增加了 2.2%。所有 Cd 供应水平均显著提高了丙二醛（MDA）含量。毒性症状的发展与 Cd 的高积累以及水分、叶绿素、蛋白质含量和根系活力的降低相对应，但植物中过氧化氢酶和过氧化物酶活性显著升高。地上部和根系中的 Cd 浓度随 Cd 供应水平的增加而增加，在 30mg/L 处理时分别达到 93 和 2232mg/kg Cd 干重的最大值。
