稀土元素对植物生物学作用机制的研究进展

稀土元素在农业上得到了广泛的应用，产生了显著的经济效益。人们对稀土元素生物学效应的作用机制进行了很多研究，提出了许多论点。从稀土元素在植物体内的赋存、稀土元素对植物光合作用的影响机制、稀土元素对细胞中Ca的竞争取代机制、稀土元素对生物体内自由基的清除机制和稀土与生物大分子的紧密结合及在细胞水平的定位五个方面综合分析了稀土元素对于植物体作用机制的最新研究成果，为稀土农用技术的研究提供新的思路。

Advances of Studies on the Biological Mechanism of Rare Earth Elements in plants

The extensive application of rare earth elements on agriculture has caused remarkable economic benefits. Lots of Studies on the action mechanism of biological effects of rare earth elements had been carried out and some of the perspectives were put forward. The occurrence state of rare earth elements in the inner parts of plants, the mechanisms of their effects on the photosynthesis of plants, their competitive replacement of cellular calcium, their free radical scavenging in the organism, and the tight binding of rare earth elements with biological macromolecules and the location of these compounds on the cellular level were reviewed in this paper to provide new ideas for the researches on application technology of rare earth elements in agriculture.