Interactions Between Arbuscular Mycorrhizae and Plants in Phytoremediation of Metal-Contaminated Soils： A Review.1

• Published in: 土壤圈：英文版 no. 5; pp. 549 - 563
• Main Author: LEUNG Ho-Man WANG Zhen-Wen YE Zhi-Hong YUNG Kin-Lam PENG Xiao-Ling CHEUNG Kwai-Chung
• Format: Journal Article
• Language: English
• Published: 2013
• Subjects: 审查; 植物修复技术; 污染土壤修复; 环境可持续发展; 相互作用; 菌根; 超富集植物; 金属污染
• ISSN: 1002-0160

Metal contamination in the environment is a global concern due to its high toxicity to living organisms and its worldwide distribution. The principal goal of this review is to examine the current strategies and technologies for the remediation of metal- contaminated soils by metal-accumulating plants and assess the roles of arbnscular mycorrhizal （AM） fungi in remediation of soils under hyperaccumulator or non-accumulator plants. The use of plants to remove metals from the environment or reduce the toxicity, known as phytoremediation, is an environmentally sustainable and low cost remediation technology. The mechanisms of the use of hyperaccumulator plants for phytoremediation included solubilization of the metal in the soil matrix, the plant uptake of the metal, detoxification/chelation and sequestration, and volatilization. Recently, some ecologists have found that phytoremediation with the aids of mycorrhizae can enhance efficiency in the removal of toxic metals. AM fungi can facilitate the survival of their host plants growing on metal-contaminated land by enhancing their nutrient acquisition, protecting them from the metal toxicity, absorbing metals, and also enhancing phytostabilization and phytoextraction. Such information may be useful for developing phytoremediation program at metal-contaminated sites.