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利用我国“90105”科学返回卫星,对10个属、13个种24株具有实际应用价值的微生物材料进行了空间飞行条件下生长与代谢性状的研究。结果表明:经过8d的飞行,多数菌株能够存活;一些细菌和放线菌的生长速度加快,生长量增加;芽孢杆菌提前产生出芽孢,伴孢晶体数量增加;经分析多种生化性状,除一株肇庆曲霉菌α-淀粉酶、果胶酶的活性有显著提高外,多数菌株无明显变化;猴头、灵芝等大型真菌仍能产生出正常的食药兼用子实体。
Utilizing the “90105” science-returning satellite in China, we studied the growth and metabolism of 24 genetically-modified microbial materials in 10 genera and 13 species in space flight. The results showed that most of the strains could survive after 8 days of flight. The growth of some bacteria and actinomycetes was accelerated and their growth increased. The number of spores and the spore of Bacillus spores increased in advance. After analyzing a variety of biochemical traits, Strains of Aspergillus zygomyces alpha-amylase, pectinase activity was significantly improved, most strains no significant change; Hericium, Ganoderma lucidum and other large fungi can still produce a normal fruiting body medicine and drug use.