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Mycorrhizoremediation an enhanced form of phytoremediation 总被引:2,自引:0,他引:2
Khan AG 《Journal of Zhejiang University. Science. B》2006,7(7):503-514
Study of plant roots and the diversity of soil micro biota, such as bacteria, fungi and microfauna associated with them, is important for understanding the ecological complexities between diverse plants, microbes, soil and climates and their role in phytoremediation of contaminated soils. The arbuscular mycorrhizal fungi (AMF) are universal and ubiquitous rhizosphere mi- croflora forming symbiosis with plant roots and acting as biofertilizers, bioprotactants, and biodegraders. In addition to AMF, soils also contain various antagonistic and beneficial bacteria such as root pathogens, plant growth promoting rhizobacteria including free-living and symbiotic N-fixers, and mycorrhiza helping bacteria. Their potential role in phytoremediation of heavy metal (HM) contaminated soils and water is becoming evident although there is need to completely understand the ecological complexities of the plant-microbe-soil interactions and their better exploitation as consortia in remediation strategies employed for contaminated soils. These multitrophic root microbial associations deserve multi-disciplinary investigations using molecular, biochemical, and physiological techniques. Ecosystem restoration of heavy metal contaminated soils practices need to incorporate microbial biotechnology research and development. This review highlights the ecological complexity and diversity of plant-microbe-soil combinations, particularly AM and provides an overview on the recent developments in this area. It also discusses the role AMF play in phytorestoration of HM contaminated soils, i.e. mycorrhizoremediation. 相似文献
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面对我国日益严峻的土壤环境形势,加快推进土壤污染防治立法刻不容缓。加强土壤污染防治立法,是贯彻落实党中央、国务院重要决策部署的具体行动,是有效遏制土壤污染加重趋势的关键环节,是明确落实各方责任的客观要求,是提高公众土壤环境保护意识的现实需要。推进土壤污染防治立法,要坚持问题导向,突出重点环节,明确责任划分,处理好与其他法律的关系,加快建立以土壤污染防治法为统领、以国家政策标准为导向、以部门规章为基础、以科学技术为支撑的中国特色土壤污染防治体系,奠定生态环境安全基石,大力推进生态文明建设。 相似文献
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