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本文报道了经返回式卫星搭载后玉米叶片细胞超微结构的变化，主要包括：细胞质壁分离，液泡增大，细胞壁加厚、扭曲，胞间连丝增多，叶绿体及细胞核变形，核膜缺刻，线粒体数目增多，嵴模糊不清，内质网数量增多、体积增大，以及细胞内膜系统和其它超微结构的变化。
This paper reports the changes of the ultrastructure of maize leaves after returning to satellites, mainly including: the separation of the cytoplasmic wall, the increase of the vacuole, the thickening of the cell wall, the distortion of the cell wall, the increase of the intercellular filament, the degeneration of the chloroplast and the nucleus, Increased number of mitochondria, blurred cristae, increased endoplasmic reticulum, increased volume, and changes in the cell membrane system and other ultrastructures.