Effective integration of soil chemistry and plant molecular biology in phytoremediation of metals: An overview
Effective integration of soil chemistry and plant molecular biology in phytoremediation of metals: An overview
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DOI：
10.1306/eg.08280303014
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发表时间：
2004-06
影响因子：
--
通讯作者：
R. Datta;D. Sarkar
中科院分区：
文献类型：
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作者：
R. Datta;D. Sarkar
金属的植物修复正在发展成为一种具有成本效益和环境友好的解决方案，用于重金属污染的网站。近年来，在理解驱动植物中金属超积累的土壤化学和植物分子遗传机制方面取得了重大的科学进展。由于金丝桃大多是低生物量和生长缓慢的植物，目前的研究主要集中在设计可以克服这一缺陷的转基因植物。除了植物-金属相互作用的复杂性之外，还有环境的影响、控制金属化学形态的特定基质因素以及可能存在于现场的其他有毒物质的相互作用。在表征和改变污染场地的土壤化学以促进/加速金属植物修复方面取得了广泛的进展。然而，这种技术在大规模上的广泛实地部署仍然受到阻碍，缺乏具体的了解金属，土壤和植物系统之间的复杂相互作用，有助于金属的吸收，转运和存储在植物中。一个多学科的研究工作，整合了植物生物学家，土壤化学家，微生物学家和环境工程师的工作是必不可少的植物修复作为一个可行的土壤清理技术在金属污染场地的成功。Rupali Datta是德克萨斯大学圣安东尼奥分校的研究助理教授。达塔获得了博士学位。她在印度海德拉巴大学获得生命科学专业的博士学位，并在日本新泻大学、盖恩斯维尔的佛罗里达大学和圣安东尼奥的德克萨斯大学进行博士后培训。Dibyendu Sarkar是德克萨斯大学圣安东尼奥分校环境地球化学实验室的助理教授和主任，她的研究兴趣是应用植物遗传学和分子生物学解决环境修复问题。萨卡尔获得了博士学位。来自田纳西大学，并在佛罗里达大学进行博士后培训。他的专业领域包括土壤化学、环境质量和补救以及风险评估。Sarkar也是环境地球科学的副编辑。
Phytoremediation of metals is being developed as a cost-effective and environmentally friendly solution for heavy-metal–contaminated sites. In recent years, major scientific strides have been taken in understanding the soil chemical and plant molecular-genetic mechanisms that drive metal hyperaccumulation in plants. Because hyperaccumulators are mostly low biomass and slow-growing plants, current research is focused mainly on designing transgenic plants that can overcome this deficiency. Added to the complexity of plant-metal interactions are influences of the environment, specific matrix factors that controls the chemical speciation of the metal, and interactions of other toxicants that may be present at the site. Extensive progress has been made in characterizing and modifying the soil chemistry of the contaminated sites to promote/accelerate metal phytoremediation. However, extensive field deployment of this technique on a large scale is still being hampered by a lack of specific understanding of the complex interactions between metal, soil, and plant systems that are instrumental in metal uptake, translocation, and storage in plants. A multidisciplinary research effort that integrates the work of plant biologists, soil chemists, microbiologists, and environmental engineers is essential for the success of phytoremediation as a viable soil cleanup technique in metal-contaminated sites. Rupali Datta is a research assistant professor at the University of Texas at San Antonio. Datta received her Ph.D. in life sciences from the University of Hyderabad in India and did her postdoctoral training in Niigata University, Japan, University of Florida, Gainesville, and University of Texas, San Antonio. Her research interest is in application of plant genetics and molecular biology to solve environmental remediation problems.Dibyendu Sarkar is an assistant professor and the director of the Environmental Geochemistry Laboratory at the University of Texas at San Antonio. Sarkar received his Ph.D. from the University of Tennessee and did his postdoc toral training at the University of Florida. His areas of expertise include soil chemistry, environmental quality and remediation, and risk assessment. Sarkar is also an associate editor of Environmental Geosciences .