【摘要】 目的研究空间条件下光合细菌的生物学效应。方法具有有机废水净化功能的紫色非硫光合细菌：沼泽红假单胞菌Ｈ３和球形红细菌ＺＧＹ，经卫星搭载１５ｄ后，对某些生物学效应进行研究。结果空间条件对菌的存活力有一定的促进作用，对去除有机废水中的ＢＯＤ５和水中的亚硝酸盐能力以及酚的降解、合成染料的脱色作用均有提高，对药物的遗传抗性亦基本稳定。结论搭载菌株Ｈ３Ｓ和ＺＧＹＳ的形态和生理特征基本没有改变。更多还原

【Abstract】 Objective To study biological effects of space flight on purple nonsulfur photosynthetic bacteria. Methods Two purple nonsulfur photosynthetic bacteria, Rhodopseudomonas palustris H3 and Rhodobacter sphaeroides ZGY, were carried on satellite for 15 days and some of their biological effects were studied after recovery. Results In space condition, survival rate of bacteria was promoted. The purification of organic wastewater, removal of nitrite,degradation of phenol and decolorization of acid red B were enhanced, and the resistance of both strains to medicine was stable. Conclusion The major morphological and physiological characteristics of loaded strains H3 S and ZGY S were not changed after space flight.更多还原