The ultrastructure of Azolla filiculoides was investigated by means of transmission and scanning electron microscopy .
用透射和扫描电镜观察了蕨状满江红茎尖、成熟叶腔内以及胚的腺毛超微结构。
2
Azolla filiformis could fix nitrogen, so further research should be made to find out if it can be used in waste water treatment.
细绿萍对火气氮有固定作用，用于处理污水尚需慎重研究。
3
The fish-raising sewage may be circularly reused after it is absorbed by Azolla and vegetables, as well as undergoing comprehensive treatment for water purification.