龙牙 meaning in Chinese
dragon's fang
fossilia dentis mastodi
i02q
longfang
Examples
- He obeyed . he made a furrow in the ground , and planted the teeth , destined to produce a crop of men
他遵命行事，挖了一条垄，把龙牙洒在其中，天意决定了这些牙会滋生出一茬人。 - Two main contents were concluded in this paper : the plant regeneration and genetic transformation . some effective factors were studied in tissue culture in order to establish a quick , high frequency regeneration system of genetic transformation for long ya lillium
本研究包括两个主要内容：龙牙百合的组织培养和遗传转化。以龙牙百合为材料，组培研究表明，鳞片叶是组培的适宜外植体。 - In terms with the principle of fusarium oxysporiun caused plant disease : bundles were blocked and fusarid acid killing cells was formed by hyphae so that caused water metabolism abnormal and plant wilting . in order to find out effective method of anti - fiisarium oxysporuin , long ya lillium was taken as material with plant tissue culture and genetic transformation techniques in this paper
针对尖孢镰刀菌的致病机理：菌丝阻塞维管束引起水分代谢失常和菌丝在植物体内产生毒素(镰刀菌酸)损害膜结构造成代谢失常，从而导致植物萎焉。本实验以龙牙百合为研究对象，应用细胞工程中的离体培养方法并结合转基因技术，以期找到抗尖孢镰刀菌的有效途径。 - The engineering bacterium which carried bcih i - chi and i - glu cdna was pcg - ii . two methods of agrobacterium - mediated and gene gun were used to transformate long ya lillium . the results of pcr analysis and southern dot blotting hybridization demonstrated that the chi a nd glu cdna have been intergrated into host genome . at the same time ; compared agrabactenum - mediated method with gene gun method , the transformation frequency of the former was 16 . 7 % , while the latter was 50 % , so gene gun transformation method was suitable for long ya liiliwn
用携带有几丁质酶基因和- 1 、 3葡聚糖酶基因的工程菌，通过农杆菌介导法和基因枪转化法转化龙牙百合，经pcr和点杂交检测证明外源基因已经整合到植物染色体中。同时对农杆菌介导法和基因枪法进行比较，发现农杆菌介导法的转化率为16 . 7 ，基因枪法的转化率为50 ，因此可能基因枪转化法更适于龙牙百合的遗传转化。