空间条件对芽孢杆菌的超氧化物歧化酶和其它性质的影响  

Effect of Space Conditions on the Superoxide Dismutase and Other Enzymes From B.Subtilis.J IAShifang

作　　者：贾士芳[1] 许怡[1] 郭兴华[1] 刘志恒[1] 阮继生[1] 

机构地区：[1]中国科学院微生物所

出　　处：《航天医学与医学工程》1995年第1期12-14,共3页Space Medicine & Medical Engineering

基　　金：国家863计划资助

摘　　要：枯草芽孢杆菌３１４菌株是超氧化物歧化酶（ＳＯＤ）的产生菌，经过我国“９２１０６”科学返回式卫星搭载之后，生长速度加快，酶活性提高。出发菌株产生ＳＯＤ大约５６０单位／克细胞。而搭载后的菌株提高２倍多，产生ＳＯＤ大约１２６０单位／克细胞。Bacillus subtilis 3 l 4 strain, a producer of superoxide dismutase(SOD)was carried intospace by the recoverable satellite on October 6～13 l992. The gene for SOD of this strain was mutage-nized in space。Some of the mutants showed an increase in SOD activity.While others showed a reduc-tion. SOD produced by one of the mutants was about l260 units/g cell after flight.while SOD pro-duced by the control was 560 units/g cell.Test strain grew faster than control,and its surviral rate af-ter flight was approximately l0%. The activity of proteinase and amylase of the test strain were simi-lar to that of the control strain. The results suggested that mutation caused by the space conditionscould be used for industrial production.

关 键 词：科学卫星 空间条件 芽孢杆菌 超氧化物歧化酶 

分 类 号：V524.1[航空宇航科学与技术—人机与环境工程]