摘要
砷元素导致的环境污染问题日益突出,施磷已成为植物修复砷污染土壤过程中必要强化措施之一。土壤-植物系统中磷和砷的相互作用关系是非常复杂的,研究表明:磷和砷在土壤中往往是共生的,但又存在竞争吸附关系;磷和砷在不同植物中的相互作用关系主要有拮抗效应和协同效应;有必要通过分子生物学手段对磷和砷表达基理进行深入研究,获得对砷具有超积累能力的植株。
The problems of environmental pollution caused by arsenic are getting more and more serious. Phosphorus fertilization has become one of the necessary measures for improving phytoremediation for arsenic-contaminated soils. The interaction of phosphorus and arsenic is very complicated in the soil-plant system. Research shows that usually in soil phosphorus and arsenic are commensal but simultaneously there is competitive adsorption between them; in different plants their interaction appears antagonism effect and synergistic effect. It＇s necessary to research deeply for phosphorus and arsenic by means of molecular biology and to obtain arsenic hyperaccumulator.
出处
《四川环境》
2010年第6期118-121,共4页
Sichuan Environment
基金
国家高技术研究发展计划863计划(2006AA102405)
水专项研究(2008ZX07421-002)
关键词
磷
砷
土壤
植物
共生
竞争吸附
拮抗效应
协同效应
分子生物学
Phosphorus
arsenic
soil
plant
commensal
competitive adsorption
antagonism effect
synergistic effect
molecular biology
