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1.
介绍了150株三元能量处理妥布拉霉素(TOB)正突变株的筛选研究,通过初筛获得25株TBO突变株,从中分离出15株高产菌,进一步复筛双从中挑选出5株产量更高的产高菌株。通过最佳培养基配方的发酵试验,确定联抗性能最佳的菌株为QB-130-S1。实验表明:三元能量用于TOB菌诱变,不仅提高了产抗水平,而且菌株生长时间缩短,经4次传代,高产菌株的遗传性能稳定。  相似文献   

2.
MEASUREMENTOFSODACTIVITYBY~(19)FNUCLEARMAGNETICRESONANCE(NMR)RELAXATIONRATEZhaoBao-Lu;ChenYun-ZunandXinWen-Juan(InstituteofBi?..  相似文献   

3.
CHARACTERISTICSOFTHEFRACTALSAPPEAREDONALUMINIUMFOILIRRADIATEDBYINTENSERELATIVISTICELECTRONBEAM¥GaoHuai-lin;PanYu-li(ChinaInst...  相似文献   

4.
COMPARISONOFTHEOBSERVEDCO_2DATASETSINTHEATLANTICOCEANCOMPARISONOFTHEOBSERVEDCO_2DATASETSINTHEATLANTICOCEAN¥XuYong-fu(Institut...  相似文献   

5.
DETERMINATIONOFCYCLOTRIME-THYLENETRINITRAMINEINSERUMOFRABBITBYRP-HPLCChenYong;YuanZhuo-bin(GraduateSchool,AcademiaSinica.Beij...  相似文献   

6.
DEVELOPMENTOFAVACUUMSPARKDISCHARGESOURCEDEVELOPMENTOFAVACUUMSPARKDISCHARGESOURCE¥GuoYu-bin;LiFu-tian(ChangchunInatitideofOpti...  相似文献   

7.
THEMULTI─ASSOCIATIONMODELOFTHEESR─ACIDITYSENSITIVEFREERADICAL:ATHEORETICALSTUDY¥ZhuJina;YanJing;ChenYa-ling;ZhangJian-zhong;Y...  相似文献   

8.
DETERMINATIONOFTHEINTENSITYOFTHEEARTHSMAGNETICFIELDDURINGQUATERNARYFROMVOLCANICROCKSINEASTERNCHINALiChunjing;ZhuRixiang(Insti...  相似文献   

9.
DETERMINATIONOFCYANIDEBYASPECTROPHOTOMETRICREVERSEDFLOWINJECTIONMETHOD¥JingfuLiuandHuichangMa(ResetrchCenterforEco-Environmen...  相似文献   

10.
CLTANDLILFORTHEStATIONARYSEQUENCEOFADOUBLYSTOCHASTICTIMESERIESAR-MAMODELCLTANDLILFORTHEStATIONARYSEQUENCEOFADOUBLYSTOCHASTIC¥...  相似文献   

11.
ONDETERMININGTHESOLVABLEDOMAINOFASYSTEMOFEQUATIONSWITHPARAMETERS──Part1:AlgebraicPolynomialEquations¥ChenJincheng(Departmento...  相似文献   

12.
NONLINEAROPTICSINQUANTUMWIRES¥ChenRei-min(DepartmentofPhysicsandAstronomy,StateUniversityofNewYorkatBuffaloBuffalo,NewYork142...  相似文献   

13.
ENUMERATIONSOFSEMIORDERS¥ShiquanWu(InstituteofAppliedMathematics,AcademiaSinicaP.O.Box2734,Beijing100080)Abstract:inthispaper...  相似文献   

14.
CRYSTALSTRUCTURESOFCHARGETRANSFERSALTS(TTMTTF)_2Cu_2Cl_6ANDC_(40)H_(72)N_6Se_4NiChenXue-an;YangXue-yong;WuPei-ji;ZhuDao-ben;FuHe?..  相似文献   

15.
QUANTUMCHEMICALSTUDIESONANEWORGANOSULFURREACTIONMECHANISMZhuJin;ChenYa-ling(InstituteofChemistry,AcademiaSinica,Beijing100080...  相似文献   

16.
THESENSITIVITIESOFTHEAGCMTOTHESOLARCONSTANTCHANGEANDGEOGRAPHICALLYVARYINGSSTA¥WangHui-jun(LASG,InstituteofAtmosphericPhysics,...  相似文献   

17.
用大肠杆菌(E.coli)乳糖发酵菌株(Lac^+),从基因水平探索元极堂内三元场的诱变效应。实验菌经二次处理,初步显示元极堂内三元场能诱发E.coli乳糖发酵基因突变,其突变率为2×10^-3 ̄0.1(物化因子诱变率10^-6 ̄10^-5)。突变率是高的,效果是明显的,从而为元极堂内三元场诱变育种提供了理论依据。  相似文献   

18.
ASYMPTOTICEFFICIENCYINAPARTLYLINEARREGRESSIONMODELLiangHua(InstituteofSystemsScience,AcademiaSinica,Beijing100080,P.R.China)A...  相似文献   

19.
ANOTEONFIRSTPASSAGETIMESFORGI/M/1TYPEMARKOVPROCESSES¥Xue-Ming;Yuan(InstituteofAutomation,ChineseAcademyofSciences,Beijing,100...  相似文献   

20.
EXPERIMENTSOFSEVERALMETHODSFORGEO-POINT-PROCESSPREDICTIONEXPERIMENTSOFSEVERALMETHODSFORGEO-POINT-PROCESSPREDICTION¥WangJin-fe...  相似文献   

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