细菌毒素的

Based on principle of pollen abortion, utilizing tapetum of anther cell, mitochondria of tapetum, callose well, process of cell meiosis during formation process of pollen, we adopt genetic transformation to create plant male sterility, such as, exogenous cytotoxin gene, chaperones, anti-sense RNA, degradation of callose ahead of time, disturbing information intercommunion between mitochondria and nucleolus and affected development of pollen sporule by bacteria.

根据花粉败育的原理，利用花药细胞绒毡层、绒毡层线粒体、胼胝质壁、细胞减数分裂过程等花粉形成过程中的不同环节，采取外源细胞毒素基因、分子伴侣、反义RNA技术、提早降解胼胝质、扰乱线粒体与细胞核之间的信息交流和细菌影响花粉小孢子发育等策略，使花粉不能正常形成，从而产生不育花粉，达到产生雄性不育的目的。

In invasive clostridial infections, spores reach tissue either by contamination of traumatized areas Or from the intestinal tract.

组织肿胀影响血液的供应。细菌所产生的引起坏死的毒素和透明质酸酶均有利于感染的扩散。

Mucous membrane protective screen is formed by the join between cell of alvine mucous membrane and cell, atrophy of cell of alvine mucous membrane, wither dies, cellular connective can send alvine path to connect flabbily appear a gender to increase, provide passageway; chemical protective screen for the bacterium inside bowel and toxin the digestive juice that shows epithelial excretive mucus and alvine memory are in bowel and digest enzymatic the chemistry that waits for material to reach its to develop.

黏膜屏障由肠黏膜细胞和细胞间的连接构成，肠黏膜细胞萎缩、凋亡、细胞连接的松弛可致肠道通透性增加，为肠内细菌及毒素提供通道；化学屏障指肠上皮细胞分泌的黏液及肠内存在的消化液和消化酶等物质及其发挥的化学功能。

Results After screening, 59 subtracted library clones were isolated which were specific for strain VIB72, and the DNA sequences of these clones were determined. Seventeen fragments showed high homology to the genes of known functions in other bacteria. This includes soluble lytic murein transglycosylase, mobilization protein, transposase (IS66), resistance-related protein (metallo-beta-lactamase and acetyltransferase family), toxin protein (DT-201 and alveicin A immunity protein), ATP-dependent endonuclease of OLD family like protein, SocE and GTP-binding protein HflX (high frequency of lysogenization).

通过对差减文库筛选，分离到59个对菌株VIB72的克隆，并对这些克隆的DNA序列进行了测定。17个基因片断与其它细菌的已知功能的基因有较高的同源性，其中包括可溶性溶胞壁质转糖基酶、转移蛋白MobA和MobC、转座子IS66、抑制相关蛋白（金属β-内酰胺酶和乙酰转移酶家族）、毒素蛋白（DT-201和alveicin A免疫蛋白）、与OLD 家族相似的ATP依赖性核酸内切酶以及SocE 和GTP结合蛋白HflX。

Clostridium tetani forms tough spores that can survive for many years. If these spores get into a deep wound, they can germinate. Once this happens the germ produces a powerful poison called tetanospasmin toxin which damages the nervous system and can cause death.

破伤风梭菌形式严峻的孢子可以存活很多年，如果这些孢子进入一个深的伤口，他们可以发芽，一旦发生这种情况的细菌产生了强大的毒药，所谓的tetanospasmin毒素损害中枢神经系统，并且可以导致死亡。

The mixture of broad bean and wheat flour during fermentation was used to screen antagonistic bacteria against aflatoxigenic Aspergillus flavus. A strain L4 with strong antifungal activity against the aflatoxin-producing Aspergillus flavus was selected using broadbean agar medium.

从自然发酵的豆瓣中筛选出对产毒黄曲霉菌的生长及其毒素合成均有抑制作用的细菌，在蚕豆天然培养基上利用菌落对峙实验初筛和滤纸片复筛得到1株有较高抑制产毒黄曲霉活性的菌株L4。

To do that, the researchers devised an agent that consists of a bit of mesothelin DNA connected to the gene that produces the toxin from diphtheria, a highly contagious and potentially deadly bacteria, which is now controlled through childhood DPT vaccination.

为了做到这一点，研究人员设计了一个代理人，由一个有点mesothelin相连的DNA的基因产生的毒素白喉，具高度传染性的和潜在的致命细菌，这是目前控制儿童白喉，百日咳，破伤风疫苗。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。