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EFFECTS OF ENDOPHYTIC BACTERIA ENHANCING PHYTOREMEDIATION OF HEAVY METAL CONTAMINATED SOILS
Authors
李秀华
滕应
马莹
骆永明
Publication date
15 January 2013
Publisher
Abstract
近年来,植物修复因其独特的优势备受推崇,尤其是当前植物内生细菌的应用为植物修复重金属污染土壤提供了有效的新方案。在植物修复过程中,耐重金属的内生细菌利用与植物的共生互惠关系,通过自身的抗性系统缓解重金属的毒性,促进植物对其迁移,并通过溶磷、固氮等途径改善植物营养以及分泌植物激素、铁载体、特异性酶、抗生素等作用,促进植物在逆境条件下的生长和对重金属的富集。本文综述了近年来国内外关于重金属抗性植物内生细菌促进植物生长、增强植物对重金属的抗性以及影响重金属在植物体内吸收、转运和积累的作用机制,系统分析了内生细菌促进植物修复重金属污染土壤的机理,并进一步讨论了植物内生细菌在重金属污染土壤植物修复工程中..
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Last time updated on 18/09/2018