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目的:探讨空间环境中的微重力和重离子对红花的影响。方法:将中药红花的种子搭载于返回式人造卫星上,返回地面后用电泳等方法研究其过氧化物酶和可溶性蛋白质的变化。结果:飞行贯穿各组的过氧化物酶活性普遍高于地面对照组,飞行失重组的过氧化物酶活性略低于地面对照组。失重组和1次以下贯穿组的蛋白质含量高于地面对照组,而2~3次贯穿组的蛋白质含量则低于地面对照组。飞行失重组的过氧化物酶和蛋白质电泳图谱与地面对照组接近,而贯穿各组的过氧化物酶和蛋白质的电泳图谱则与地面对照组差异较大。结论:空间环境的微重力主要影响植物的生理状况,而重离子则不仅影响植物的生理状况,还影响植物的遗传基因
Objective: To investigate the effects of microgravity and heavy ions on safflower in space environment. Methods: The seeds of Chinese safflower were placed on the return satellites, and the changes of peroxidase and soluble protein were studied by electrophoresis after returning to the ground. Results: The peroxidase activity of the flight through the groups was generally higher than that of the ground control group, and the peroxidase activity of the flight weightless group was slightly lower than that of the ground control group. The content of protein in weight loss group and less than once through group was higher than that in ground control group, while the content of protein in 2 to 3 times through group was lower than that in ground control group. Peroxidase and protein electrophoresis maps of flight weight loss group were close to those of the ground control group, while the electrophorograms of peroxidase and protein throughout the group were significantly different from the ground control group. Conclusion: The microgravity of space environment mainly affects the physiological status of plants, while heavy ions not only affect the physiological status of plants, but also affect plant genetic