返回式卫星有源搭载微生物试验结果的初报

为观察空间条件对微生物的影响，１９９４年在中国发射的科学返回卫星上，首次搭载了中国自行设计的空间微生物培养箱。结果表明，所携带的微生物菌株全部存活，其形态、培养性、遗传学特征及产物产量出现不同程度的变化：妥布拉霉素生产菌出现大量变异菌落；ＪＺ－２３－４Ｔｒｐ和Ａｄｅ缺陷型母菌搭载后有１５％Ｔｒｐ缺陷型消失；圈卷产色甸霉菌产抗生素能力呈不平均分布趋势；巨大芽孢杆菌产酶活力提高１１．６％；酵母菌单位体

Preliminary Report of Microbial Experiments with Space - Microbial - Cultivator on Recoverable Satellite

Six kinds of microorganisms were carried in the Space - Microbial - Cultivator onboard recoverable satellite for 15 days from July 3,1994. They were exposed to an environment of microgravity and high dosage radiation. The results showed; all strains were alive after the flight; lots of variation of Tobramycin - producing strains occured; 15 percent of Trp and Ade deficiency strains lost their Trp deficiency feature; activity enzyme produced by Bacillus megaperium was 11. 6% higher than before; SOD content in monoploid yeast was higher after flight but it has no change in biploid yeast.