毒素

Objective To isolate new conotoxins of Conus textile from the South China Sea,provide new conopeptides for drug discovery and design, and investigate the effects of living environment on toxin secretion by comparing the compositions of the conotoxins of this species from different areas.

目的从中国南海织锦芋螺中分离新的芋螺毒素，为药物发现、药物设计提供新的活性多肽或前体多肽，比较不同地域织锦芋螺毒素的构成，研究环境对织锦芋螺毒素分泌的影响。

This study used Danio rerio, which was a sensitive fish to environmental toxin and Hypophthalmichthysmolitrix, which had strong absorbability to environmental toxin to be the eucoen, and behavior index of these two fishes was used to monitor the existence of microcystins and malachite green.

本研究用人工饲养，对环境毒素敏感的斑马鱼和对环境毒素有较强吸收能力的鲢鱼作为指示生物，检测其行为对水体中微囊藻毒素和孔雀石绿的反应。

The result showed that dayflower and goosefoot was most sensitive to toxin which injury response reached to level 4,then redroot pigweed and eragrostioid which injury response was level 3 and level 2 respectively.Among main crops corn and sorghum were susceptible to toxin while wheat,soybean and peanut were insensitive to toxin.

粗毒素杀草谱和对作物安全性测试结果为鸭跖草和藜对毒素最敏感，伤害反应为4级，反枝苋和虎尾草伤害反应分别为3级和1级；玉米和高粱对粗毒素敏感，小麦、大豆和花生不敏感。6。

In this thesis, using the PSP-producing dinoflagellate A/exandrium tarnarense, the technology on seperation and purification of PSP toxins have been studied and developed.

本文通过大量培养塔玛亚历山大藻来提取PSP毒素，完善了毒素的分离纯化过程，并对纯化毒素的活性进行了研究和探讨。

A fumigation of aromatic oil of Litsea Cubeab was used to discharge the pollution aflatoxin B_1 from Euryale feroe Salisb. The results showed that the contents of aflafoxin can decline from 30 ppb to 10 ppb by the treatment of fumigation at the temperature of 40—50℃. in 72 hours, and that the effectiveness of detoxification was 66.7%.

本文采用山苍子芳香油熏蒸法，对自然污染黄曲霉毒素B_1的芡实进行去除实验，试验结果表明：在40°—45℃下，用山苍子芳香油，对自然污染黄曲霉毒素B_1的芡实，熏蒸处理72小时，可使芡实中黄曲霉毒素B_1由30PPb下降到国标10PPb，解毒效果达66.7%。

Agkistrodotoxin, a presynaptic neurotoxin and one of the two neurotoxins from the snake venom of Agkistrodon halys Pallas, has been further purified by DEAF -cellulose and CM-Sephadex column chromatography and vertical slab polyacrylamide gel electrophoresis.

本文在前文的基础上，改进了蝮蛇神经毒素的分离方法，纯化了蝮蛇毒中的两个神经毒素之一，突触前神经毒素Agkistrodotoxin，并对其生化特性进行了分析。

Ceftazidime shows similar MIC on mucoid or nonmucoid strains in routine microbroth dilution test. In nonmucoid strains,both planktonic and sessile bacteria are sensitive to ceftazidime and 4μg/ml azithromycin shows little effect on the MBCs of ceftazidime while in mucoid strains, sessile bacteria in biofilms show high MBCs of ceftazidime and adding 4μg/ml azithromycin brings obvious reduction in MBCs of ceftazidime and enhance the sessile bacterial sensitivity to ceftazidime.

在非粘液型菌株，悬浮菌和BF菌均对头孢他啶敏感，加入4μg/ml阿剂毒素对头孢他啶的MBC影响较小；在粘液型菌株，头孢他啶对BF中的座生菌MBC增高，而加入4μg/ml阿剂毒素明显降低了头孢他啶的MBC，显示阿剂毒素增强了座生菌对头孢他啶的敏感性。

The answer lies in how Botox can be injected directly to the source of the problem -- usually an overactive muscle, gland or nerve connection -- with few lingering side effects, making it easy for scientists to experiment with it on different problems.

答案在于肉毒素可以直接注射到过于活跃的肌肉，腺体和神经连接处，这正是某些疾病产生的根源。使用肉毒素后持续的副反应较少，这就让科学家可以放心试验，运用肉毒素治疗各种疾病。

The objective of this study is to picture the signal tranduction pathway of apoptosis induced by MC so as to further investigate the impact of MC on transcription, expression and regulation of apoptosis gene and the related biological effects; illustrate the toxicological mechanism of MC; as well as discover the new biomarkers invovled.

本研究工作的目的是通过功能基因组分析的技术平台，探讨微囊藻毒素诱导肝组织细胞凋亡的信号转导通路，以便在此基础上，进一步深入研究该毒素对凋亡功能基因在转录、表达、调控水平上的影响，及由此引发的生物学效应；揭示微囊藻毒素的凋亡毒理机制，同时发现新的生物标记物。

The spore could germinate in 5-35℃,the optimum temperature was 25℃.The bioassay of toxin used seeding and young leaves because it could cause the evident symptom rapidly and sensitively. The toxin produced by A, tenuis Nees could change the function of the toxin on the POD, SOD and PAL was identical to A.

病原菌毒素的生测采用寄主植物切根苗、幼嫩叶片比较直观、灵敏；毒素对寄主植物膜透性有伤害作用，引起膜功能紊乱；毒素和病原菌对枸杞叶片处理后，对POD、SOD、PAL酶活性的影响有很大相似性。

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。