Protista in some classifications , a kingdom of simple eukayotic organisms including the algae and protozoans 原生生物：指在一些分类中，简单真核生物的一个界，包括藻类和原生动物。
2.
Standard practice for preservation by freezing , freeze - drying , and low temperature maintenance of bacteria , fungi , protista , viruses , genetic elements , and animal and plant tissues 用冷冻冷冻干燥和低温养护法保存细菌真菌原生生物病毒遗传要素以及动物和植物组织的标准实施规程
