Bañuelos G S
USDA-ARS, 9611 S. Riverbend Ave., Parlier, CA 93648, USA.
Environ Pollut. 2006 Nov;144(1):19-23. doi: 10.1016/j.envpol.2006.01.015. Epub 2006 Mar 6.
Interest in selenium pollution and remediation technology has escalated during the past two decades. Although not known to be essential for plants, selenium is essential but could be toxic for humans and animals, depending on its concentration. A major selenium controversy in the 1980's emerged in California when the general public and scientific community became aware of selenium's potential as an environmental contaminant. After extensive research on several strategies to reduce loads of mobile Se for entering the agricultural ecosystem a plant-based technology, defined as 'phytoremediation' received increasing recognition, as a low-cost environmentally friendly approach for managing soluble Se in the soil and water environment. Successful long-term field remediation of Se by plants is, however, dependent upon acceptance and widespread use by growers, who are also concerned about potential commercial value from using the plant-based technology. Obtaining products with economic value from plants used in the cleanup of soil would certainly be an additional benefit to phytoremediation, which could help sustain its long-term use.
在过去二十年中，对硒污染及修复技术的关注不断升级。尽管硒并非植物生长所必需，但它对人类和动物来说是必需的，但根据其浓度不同，也可能有毒。20世纪80年代，加利福尼亚州出现了一场关于硒的重大争议，当时公众和科学界开始意识到硒作为一种环境污染物的潜在危害。在对几种减少可移动硒进入农业生态系统的策略进行广泛研究之后，一种基于植物的技术——“植物修复”作为一种低成本、环境友好的方法，用于管理土壤和水环境中的可溶性硒，受到了越来越多的认可。然而，植物对硒的长期成功田间修复取决于种植者的接受和广泛应用，而种植者也关注使用这种基于植物的技术的潜在商业价值。从用于土壤清理的植物中获得具有经济价值的产品，肯定会是植物修复的一项额外益处，这有助于维持其长期应用。
