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  • Title: [Ultrastructural changes after space flight in Platycodon grandiflorum (Jacq.) DC].
    Author: Gao W, Zhao S, Xue L, Quan L, Xiao P.
    Journal: Zhongguo Zhong Yao Za Zhi; 1999 May; 24(5):267-8, 317. PubMed ID: 12205882.
    Abstract:
    OBJECTIVE: To substantiate the effect of space conditions on medicinal plants. METHOD: The seeds of platycodon grandiflorumg were set up in retrievable satellites. After returning to earth, the ultrastructural changes of leaves were studied. RESULT: Under light microscope, the leaf tissue structure of the flight group and the earth controlled group were alike and under electron microscope, some differences could be found in the nucleus and choloroplasts between the two groups. CONCLUSION: Space environment has some effect on Platycodon grandiflorum, and the effect needs to be further explored.
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