【摘要】 阐述了土壤中硒的存在形态及其与植物吸收的关系,论述了植物对硒的吸收和代谢机制、硒在植株体内的存在形态及其生物学效应,讨论了低硒地区食物链中硒水平调节的方法和效果,提出了土壤-植物-食物链系统中硒素研究的前沿问题。更多还原

【Abstract】 This paper discussed the fractionations of Se in soils and its relationship with plants, reviewed the uptake, transloca-tion and metabolism of Se by plants, the speciations of Se in plants and their bioavailability, and related the methods and ef-fects of Se modification in food-chain from the aspects of Se toxicity and Se deficiency.更多还原