Ab initio calculation of structure and Raman and Infrared spectra of Trifluoromethylthiosulphenyl Chloride

The molecular model of Trifluoromethylthiosulphenyl Chloride, CF₃SSCl, was presented.Ab initio method was used to calculate the structure and Raman and Infrared spectra. The results show that CF₃SSCl possess stereoscopic structure ofC ₁ symmetry with a torsional angle of 94.2°. The potential energy distribution and isotope replacement methods were applied to determine the vibrational assignment. The vibrational frequencies and corresponding modes of the molecule were obtained. The calculated vibrational frequencies are in good agreement with experiments. Supported by the National Natural Science Foundation of China Zou Xianwu: born in Apr, 1938, Professor     

构建及表达小麦高分子量容蛋白基因5′端调控序列缺失突变体嵌合质粒

通过定点突变，在小麦高分子量（ＨＭＷ）谷蛋白基因５′上游调控序列的ＴＡＴＡｂｏｘ与基因翻译起始密码子ＡＴＧ之间，改变三个碱基，产生新的ＢａｍＨⅠ内切酶位点．在调控序列中，选择四个合适的内切酶，对上游序列进行缺失，分离到四个大小分别为２４００、６１０、４４０和１１０ｂｐ的含有不同调控元件的ＨＭＷ谷蛋白基因启动子，与质粒ｐＢＩ１０１．１的报告基因ＧＵＳ重组，构建了四个嵌合质粒ｐＷＧ２４００、ｐＷＧ６００、ｐＷＧ４４０和ｐＷＧ１００．经基因枪、微束激光和ＰＥＧ等方法将ｐＷＧ２４００转化玉米胚乳悬浮细胞，ＧＵＳ基因获得表达．这为进一步研究ＨＭＷ谷蛋白基因的调控机理奠定了基础．     

栗红蚧生物学特性及其防治

栗红蚧Kermococcus roboris(Four)在福建一年发生1代,以2龄若虫在枝条芽基,嫩枝裂缝或伤疤处越冬。防治试验表明,选有50％快灭磷进行喷雾、涂杆或注射效果最好,40％氧化乐果次之,三种农药混合试验表明,40％快灭磷 40％氧化乐果 80％敌敌畏原液1∶1∶1混合进行涂杆效果最好。