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[Effect of space flight on ultrastructure in medicinal plant Datura innoxia Mill]
1Institute of Medicinal Plants, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094.
Objective:
To substantiate the effect of space environment on medicinal plants.
Method:
The seeds of Datura innoxia were set up in retrievable satellites. After returning to earth, the ultrastructural changes were observed by means of electron microscope.
Results:
In cells of weightless group and hit group, some changes were found in chloroplast grana, starch grains and vesicles in chloroplasts. No obvious changes were observed in nuclei.
Conclusion:
Space environment has some effect on the ultrastructure in D. innoxia, and chloroplast is more sensitive to space environment than other organs.
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