toxin ['tɔksin]

toxin的基本解释

n.

毒素, 毒质

与toxin相关的网络例句 [注：此内容来源于网络，仅供参考]

The principal purpose of this study is to set up the isolation methods for diphtheria toxin expressed by genes, to purify the toxin with complete biological activities, and to make researches on its toxicities. In the experiments, the target gene was inserted into the cloning vectors--pET22b, then the vectors were introduced into host cells -BL21(DE3). The expression of the toxin was induced by addition of IPTG. The expression products were purified by His-6 label affinity chromatography. Then the diphtheria toxin expressed was transferred to PVC membrane using semidry blotter to determine the amino acid sequence of N-terminal. The "nicked" diphtheria toxin linked by disulfide bond was gained by protease hydrolysis.

为建立重组基因表达白喉毒素的分离纯化方法，制备出具有生物活性的蛋白质毒素，构建了白喉毒素表达载体pET22b-DT，并转入大肠杆菌BL21(DE3)中诱导表达，以融合表达的His-6作为标签通过亲和层析纯化；表达毒素经蛋白酶酶切后，形成了以二硫键连接的与天然结构相同的带"缺口"的白喉毒素，并测定白喉毒素对豚鼠的急性毒性和细胞毒性。

The book comprehensively reviews the molecular and cellular biology of the most important microbial toxins with a focus on recent advances in the field, covering topics such as toxin ADP-ribosylation of proteins, toxin inhibition of protein synthesis, modulation of actin cytoskeleton, cytolethal distending toxins, cell-damaging/pore-forming toxins, clostridial neurotoxins, toxins of the immune system, streptococcal and staphylococcal toxins, anthrax toxins, Shiga toxin, Yersinia toxin, mycotoxins, and the regulation of toxin expression, as well as the potential of microbial toxins in bioterrorism.

该书全面评论了最重要的微生物毒素的分子与细胞生物学，重点是这一领域中的最新进展，主题包括蛋白质毒素ADP核糖基化，毒素抑制蛋白质合成，肌动蛋白细胞骨架的调控，细胞致死增加毒素，细胞损伤/孔状毒素，梭菌属的神经毒素，免疫系统的毒素，链球菌和葡萄球菌毒素，炭疽毒素，Shiga毒素，Yersinia毒素，毒枝菌素，和毒素表达调节，以及生物恐怖中微生物毒素的潜在可能性。

PAL activity, chitinase activity, total Polyphenol content and total Flavonoids content in soybean leaves induced by the same crude toxin and race were similar, it stated that the crude toxin is an important factor which can induce resistant substances, but the induced speed and the induced intensity by the crude toxin and conidium were different. Firstly, the induced speed of crude toxin which induced PAL activity and total Flavonoids content of resistant soybean varieties was faster than speed of C.

同一生理小种的粗毒素与灰斑病菌对大豆叶片内PAL活性、总多酚类含量、总黄酮含量以及几丁质酶活性等几种生化指标均表现出相似的诱导作用，由此可推断粗毒素是诱导大豆叶片内的PAL活性、总多酚含量、总黄酮含量以及几丁质酶活性产生变化的主要生物因子，只是二者在对抗性不同的大豆品种的诱导速度及强度上存在一定的差异。

与toxin相关的网络解释 [注：此内容来源于网络，仅供参考]

toxin：毒素

(由1997年第362号法律公告修订;由2000年第65号第3条修订)(2) 在第(1)款中,"生物武器"(biological weapon) 指─(i) "生物剂"(biological agent) 指任何微生物剂或其他生物剂;(ii) "毒素"(toxin)指任何毒素,不论其来源或生产方法如何.

toxin：毒物

只要自己能劳动,他们在室内利用堆肥(天然肥料)使小麦发芽寸许,用利刀剪下麦芽,即时压汁食用,而且不使用电动的果汁器,以免因高速破坏了一部份养分,被氧化分解,腐败产生毒物(Toxin),又据试验得知,动物的细胞膜(Cell membrane),

toxin：(生)毒素

另外,A型链球菌会产生毒素(toxin),这正是决定当被感染时会不会侵犯皮肤而产生症状与否的因素. 当人类没有抗毒素(antitoxin)存在身体内时,就会产生皮肤的疹子,如果体内已经产生抗毒素,被A型链球菌感染时,就不会有皮肤症状.

toxin：毒素 毒素

四、毒素 毒素(toxin)是植物病原真菌和细菌代谢过程中产生的,能在非常低的浓度范围内干扰植物正常生理功能、对植物有毒害的非酶类化合物. 依据对毒素敏感的植物范围和毒素对寄主种或品种有无选择作用,

Epidermolytic toxin：表皮溶解毒素

5.表皮溶解毒素(epidermolytic toxin) 也称表皮剥脱毒素(exfoliatin). 主要由噬菌体Ⅱ群金黄色葡萄球菌产生. 毒素能裂解表皮组织的棘状颗粒层,使表皮与真皮脱离,引起葡萄球菌烫伤样皮肤综合征,亦称剥脱性皮炎,多见于新生儿及婴幼儿.