Science China Technological Sciences

, Volume 58, Issue 2, pp 338–345 | Cite as

Effects of spaceflight and simulated microgravity on cell sub-microstructure and antioxidant enzyme activity in tomato

  • Yu Chen
  • JinYing Lu
  • HuaSheng Li
  • Qiao Sun
  • Ying Zhao
  • Liang Su
  • Min Liu
Article
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Abstract

Controlled ecological life support systems provide food, air, water, and other basic living resources for crew members on long-duration spaceflight missions. Plants are an important basic requirement of these systems and their biological characteristics in space have very high research value. Based on experiments of spaceflight in Shenzhou 8 spacecraft and simulating microgravity effects on three-dimensional (3-D) clinostat, the biological characteristics of tomato’s leaf cell sub-microstructure and antioxidant enzyme activities were studied and compared in this work. Results showed that leaf cell sub-microstructure of the tomato samples experiencing spaceflight had more changes than that of the samples processed by simulated microgravity effects, and both peroxidase (POD) and superoxide dismutase (SOD) activities increase obviously in both the environments.

Keywords

tomato plantlet spaceflight simulated microgravity sub-microstructure antioxidant enzyme 
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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Yu Chen
    • 1
  • JinYing Lu
    • 1
  • HuaSheng Li
    • 1
  • Qiao Sun
    • 1
  • Ying Zhao
    • 1
  • Liang Su
    • 1
  • Min Liu
    • 1
  1. 1.Space Molecular Biology LaboratoryChina Academy of Space TechnologyBeijingChina

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