毒素

Under the selection pressure of crude toxin filtration, three kinds of treatment methods and four kinds of phytotoxin concentrations were used to screen the blast-resistant callus phenylalanine, The result indicated that the crude toxin filtration inhibited evidently the callus induction, subculture and differentiation, with the increasing of the toxin concentration, the inhibiting getting enhanced.

以稻瘟病病原菌粗毒素提取液为选择压，对水稻进行抗病性筛选，结果表明：粗毒素提取液对水稻愈伤组织诱导、继代及分化有明显的抑制作用，抑制程度随毒素浓度提高而增强，且品种间差异显著。

Objective To establish a sensitive and specific gene probe method for detection of Staphylococcal enterotoxin B gene.

目的 建立一种灵敏度高、特异性好的DNA 探针检测葡萄球菌肠毒素B 基因方法。方法用聚合酶链反应扩增的方法进行葡萄球菌B 型肠毒素基因探针生物素标记，用制备好的基因探针，进行斑点杂交，对葡萄球菌肠毒素10 株标准株和39 株临床株分别进行了检测。

To obtain the tervalent fusion toxin gene, three toxin gene fragments from three species of Vibrio parahaemolyticus, Vibrio vulnificus and Vibrio mimicus were connected with the flexible linker using overlap extension PCR. The three toxin gene fragments respectively encode the mature proteins of the thermostable direct hemolysin of V. parahaemolyticus, the cytotoxin of V. vulnificus and the heat-labile hemolysin of V.

采用柔性Linker和重叠延伸PCR方法将三个毒素基因，即副溶血性弧菌的耐热型直接溶血素基因tdh、创伤弧菌的溶细胞毒素基因vvhA和拟态弧菌的热不稳定型溶血素基因vmhA的成熟蛋白基因片段进行串联，得到三联融合毒素基因tdh-vvhA-vmhA。

The experiment results showed the characteristics of the fermental Toxigenic Pasteurella multocida could meet the standard of producing AR vaccine in the colony morphology, toxin pathogenesis, and other aspects. The serotype of fermental Toxigenic Pasteurella multocida did not change.

实验结果表明，在适宜条件下D型产毒素Pm13-1株培养物符合其菌落、菌体形态特征；糖发酵实验结果符合其生化特性；其产毒素能力符合对制苗菌株产毒素、致病变能力的要求，且未发生血清型的变化。

The main reasons were that the algae and organism in the water decreased the ability of removing pollutants by coagulations, the algae which grown again in the open sedimentation tank weakened the removal effect of algae by coagulation; because of the accumulation of algae and algae toxin in the filtration tank, the concentration of algae toxin in the effluent increased; by the function of fluid chlorine, the algae and organisms after the filtration will release microalgae toxin and produce a lot of byproduct such as microalgae toxin, sobomyl and so on, meanwhile, the chlorination produce considerable halide and halo-acetic acid and other disinfection byproduct.

主要表现在藻类和溶解性有机物的存在降低了混凝去除污染物的能力；藻类在露天平流沉淀池中再生长，抵消了混凝除藻效果；藻类和藻毒素在滤池中积累，导致滤后藻毒素升高；穿透滤池的藻类和有机物在液氯作用下，释放微囊藻毒素、土臭素和二甲基异冰片等胞内物质，同时生成数量可观的卤代烃和卤乙酸等消毒副产物。

The relative cross-reactivity of PA with AFB-1,ZON,T-2,FB were less than 0.01%and with an affinity constant for PA of about 1.54×10~8 liters per mol.It offered a foundation for developing immunoassay method for PA.

单克隆抗体与黄曲霉毒素B1、玉米赤霉烯酮、T-2毒素和伏马毒素B1均无交叉反应率，单抗的亲和常数为1.54x10~8 L/mol，为进一步建立青霉酸的免疫学快速检测方法提供了基础。3。

the botulism toxin is the bacillus botulismus produces exotoxin, for present known toxin toxicity strongest.

肉毒毒素中毒致呼吸骤停，经心肺复苏抢救成功一例肉毒毒素是肉毒杆菌产生的外毒素，为目前已知毒素中毒性最强的。

The main virulence factors are CPS, LPS, OMP, TBP, adhesion factors, Apx, Urease and so on. A. pleuropneumoniae produces proteinaceous cytotoxins that is the main virulence factors, ApxⅠ, ApxⅡ, ApxⅢand ApxⅣ. ApxⅡis expressed by all serotypes of A.

Apx毒素是APP最主要的毒力因子，现证明不同血清型的菌株可产生4种Apx，ApxⅡ除血清型10和14以外，其它血清型都分泌；任何血清型都能在体内分泌毒素蛋白ApxⅣ，但体外培养的细菌却不能分泌该毒素。

Therefore, it is necessary to study the characteristics of mycotoxin production, to improve the method of mycotoxin detection, furthermore to provide consumers with general information of mycotoxin contamination of agri-products and foods.

因此，对我国禾谷镰刀菌产毒特点进行分析，并改进毒素检测方法，对我国麦制品中真菌毒素含量进行日常化的和标准化的检测，并发布相关毒素污染情况是非常必要的。

No product except ours has been developed to specifically detoxify AFB1, the most toxic mycotoxin.

除本项目拟研发的重组黄曲霉毒素解毒酶产品，是特异性的针对毒性最强的霉菌毒素---黄曲霉毒素之外，目前没有同类产品。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。