超低温保存是目前长期保存植物种质资源最有效的方法，已广泛应用于数百种植物。综合国内、外植物种质资源超低温保存的研究进展，从超低温的保存原理、保存程序、再生材料相对存活率测定及其遗传变异特性检测等方面对药用种质资源超低温保存技术的研究现状进行了总结。%Cryopreservation that is used to conserve hundreds of plants is the most efficient way for long-term preservation of plant germplasm resources currently ..Based on these researches of cryopreservation of plant germplasm resources both in China and abroad ,this review discusses the status of cryopreservation of medical germplasm resources ,including the principle of cryopreservation ,cryopreservation procedure ,determi-nation of relative survival rate of regeneration material and assay of genetic variation and so on .
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