毒素

Analysing ustiloxins inhibiting plant cell mitosis The inhibition experiment of growth of garlic radicle showed that there were more cells in the telophase stage in the garlic radicle dealed with culture filtrate of Ustilaginodea virens than those dealed with H2O. The cell volume of the former was bigger than that of the latter. So it seemed that ustiloxins could inhibit the cell mitosis, but not in the cell elongation.

毒素对植物细胞分裂的抑制作用分析：用大蒜根尖做抑制试验，发现用稻曲病菌培养滤液处理过的大蒜根尖呈分裂末期的细胞数目明显多于相同条件浙江大学硕士学位论文下对照的数目，抑制率为69%，且细胞明显比对照的细胞大，说明毒素抑制根尖细胞的有丝分裂，但不能抑制细胞的伸长。

Through investigation and study of the leaf blight disease of Lycium in 5 different areas in Mongolia, the pathogen was identified in-house as Alternaria tenuis Nees, biological characteristics of the pathogens, the bioassay of toxins from A. tenuis Nees, the pathogenic mechanism of toxin and the toxicity determination of the fungicide were studied.

通过对内蒙古5个不同地区枸杞叶枯病的调查研究，确定其致病菌为细链格孢菌，并对该菌的生物学特性、病原菌毒素活性检测、毒素的致病机理及几种药剂的室内毒力进行了研究。

They can colonize in human stomach nearly all the time because human immun system can not eradicate them. Vacuolating cytotoxin A is the unique secreted toxin of Hp that induces vacuolation of epithelial cell and is closely related to the incidence of disease in a population infected with Hp.

空泡毒素基因的表达产物—VacA是Hp所特有的分泌性毒素，是Hp的重要毒力因子，在体外，它能使哺乳动物上皮细胞发生空泡样变化，最终导致细胞死亡，它与Hp感染者的发病与否相关。

Methods:Chapter one The chapter is about the effect of galanthamine on the circulating TNF in rats with abdominal infection induced by endotoxin and effects of vagus nerve on galanthamine inhibiting inflammatory response.The models of rats with abdominal infection induced by endotoxin and the animal models of bilateral cervical vagotomy were produced.

目的：研究胆碱酯梅抑制剂加兰他敏对内毒素腹腔感染大鼠循环TNF的影响，迷走神经在加兰他敏炎症抑制效应中的作用；并研究加兰他敏对内毒素刺激后巨噬细胞活化的影响，阐述加兰他敏炎症调控作用的机理。

The binding of BmK abT to rat brain synaptosomes could be partially inhibited by increasing the membrane potential, but not by BmK AS, BmK IT2 and BmK I. Binding was not modulated by veratridine.

对于哺乳动物脑型钠通道，BmK abT 的结合位点可能不同于BmK AS、BmK IT2 和BmK I 的结合位点，但与经典的α-型毒素结合位点较为接近；对于昆虫钠通道，BmK abT 的结合位点至少部分与抑制型抗昆虫毒素BmK IT2 的结合位点相互重叠。

At the same time, we separate and purify the Actinobacillus pleuropneumoniae-RTX-toxin by the seperation and purificationtechnique ofprotein and get pure apxl and apx II. Then, we research their biological characterization primarily.

同时我们还利用蛋白质层析技术对APP分泌的天然溶血毒素(Actinobacillus pleuropneumoniae-RTX-toxin，APX)进行了分离纯化，并获得了高纯度的溶血毒素Ⅰ，并对其生物学活性进行了初步的研究。

Cirrhosis may also be caused by metabolic diseases (Wilson's disease, hemochromatosis, and alpha 1 - antitrypsin deficiency, all of which can be diagnosed by laboratory tests and/or liver biopsy) or toxins (diagnosed by positive history for drugs, environmental or industrial toxins, and confirmatory lab investigation).

硬化也可由代谢疾病引起（威尔逊氏病，血色沉着病，α-1型胰岛素缺乏症，以上均可在实验室检验或经肝活检确诊）或由毒素引起（可以经用药史，接触环境或工业毒素史，或实验室检查判断）。

According to the results of quantum chemistry calculation and the present research status in the relationship between the structures and the functions of DT, the El 54 in DT catalyzing domain was mutated to aspartic acid and arginine in order to study the effects of the alteration on the biological activities.

在量子化学计算的基础上，结合目前关于白喉毒素结构与功能的研究状况，选择把白喉毒素催化区的第154位谷氨酸分别突变为天冬氨酸和精氨酸，研究此处电荷性质的改变对生物活性的影响。

Result 1991, area of Lian Yun harbor produced half plait to knit grain snail 2003 toxic 11, 2004 Ningxia Yinchuan the snail when a; is toxic 1, toxicity test of acute of small white rat all check gives toxin of paralytic sex shellfish; color atlas of afore-mentioned photograph of fluid of classics of shellfish check appearance, mass spectra couplet gives balloonfish toxin TTX and its ramification with analytic check.

结果1991—2003年连云港地区发生半褶织纹螺中毒11起，2004年宁夏银川1起；时螺中毒1起，小白鼠急性毒性试验均检出麻痹性贝类毒素；上述贝类检样经液相色谱—质谱联用分析检出河豚毒素TTX及其衍生物。

The results showed that the strongest inhibitory activity of Cercospora zeae-maydis toxins were obtained with polar solvent when it was statically cultured in the Fries nutrient fluid for 15ds.

结果表明，Fries培养液中静止培养15d，用极性溶剂提取的玉米灰斑病菌毒素生物活性最好，毒素对玉米胚根生长的抑制作用明显。

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。