摘要
施用化学改良剂是控制土壤重金属污染的有效手段。研究施硅对抑制植物吸收重金属镉的影响及其作用机制,对促进利用硅肥作为改良剂治理重金属污染土壤技术的发展有重要意义。近年来,以硅肥作改良剂对重金属污染的土壤进行治理的研究大量涌现。本文从施硅对抑制植物吸收镉及镉在植物体内的分布、迁移的影响;从植物细胞膜透性、抗氧化物酶系和抗氧化剂等新陈代谢或生理过程及硅-金属复合物的结构组成等方面对植物抗镉胁迫的生理生化效应及其抑制植物吸收重金属镉的机制进行综述,并对今后有待进一步研究的问题提出了建议。
Applying chemical amendments is an effective way to mitigate soil heavy metals pollution. To study the effects and action mechanisms of applying silicon on inhibiting the cadmium absorption by plants is of significance in developing the techniques of controlling soil heavy metals pollution through applying silicon fertilizer as amendment. In recent years, a great deal of studies about the management of soil heavy metals pollution by using silicon fertilizer sprang up. This paper summarized the research progress on the inhibitory effects and action mechanisms of exogenous silicon on plant cadmium absorption, distribution and transformation, and the plant physiological and biochemical responses to cadmium stress induced by silicon. Some issues for further study were suggested.
出处
《生态学杂志》
CAS
CSCD
北大核心
2007年第4期567-570,共4页
Chinese Journal of Ecology
基金
广东省科技攻关项目(2005B20801003)
广东省农业领域重大专项(2003A20504)
广东省农业领域农业攻关资助项目(2006B20601007)
关键词
硅
镉
植物
抑制
silicon
cadmium
plant
inhibition.
