Ji Puhui, Tang Xiwang, Jiang Yongji, Tong Yan'an, Gao Pengcheng, Han Wenshe
College of Resources and Environment, Northwest A&F University, Yangling, 712100, China.
Bull Environ Contam Toxicol. 2015 Dec;95(6):810-4. doi: 10.1007/s00128-015-1670-x. Epub 2015 Oct 15.
A microcosm experiment with artificially contaminated soils was conducted in a greenhouse to evaluate the effect of gibberellic acid 3 (GA3) on phytoremediation efficiency of Solanum nigrum L. The GA3 was applied at three different concentrations (10, 100, 1000 mg L(-1)) to S. nigrum. Results indicated that GA3 can significantly (p < 0.05) increase the biomass of S. nigrum by 56 % at 1000 mg L(-1). Concurrently, GA3 application increased Cd concentrations in the shoot of S. nigrum by 16 %. The combined effects resulted in an increase in the amount of Cd extracted by a single plant by up to 124 %. Therefore, it is possible to use GA3 to promote the Cd phytoremediation efficiency of S. nigrum.
在温室中进行了一项用人为污染土壤的微观实验，以评估赤霉酸3（GA3）对龙葵植物修复效率的影响。将GA3以三种不同浓度（10、100、1000 mg L(-1)）施用于龙葵。结果表明，在1000 mg L(-1)浓度下，GA3可显著（p < 0.05）使龙葵生物量增加56%。同时，施用GA3使龙葵地上部分的镉浓度增加了16%。综合作用导致单株植物提取的镉量增加高达124%。因此，有可能利用GA3来提高龙葵对镉的植物修复效率。
