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细菌超微结构
相关语句
  bacterial ultrastructure
     Bioleaching of Copper Sulfide Minerals, the Bacterial Ultrastructure and the Mechanisms of Attachment, Purifing SFORase of Thiobacillus Ferrooxidans
     硫化铜矿浸矿细菌超微结构与吸附机理及SFORase的纯化
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  “细菌超微结构”译为未确定词的双语例句
     OBSERVATION ON CHANGE OF ULTRASTRUCTURE OF BACTERIA TREATED WITH OZONE WATER DISINFECTION
     臭氧水消毒处理的细菌超微结构变化的观察
短句来源
     Cd ion changed bacteria ultrastructure prominently.
     Cd离子处理的细菌超微结构变化明显。
短句来源
     A STUDY ON THE EFFECT OF CEFOTAXIME ON BACTERIAL ULTRAMICROSTRUCTURE
     氨噻肟头孢菌素对细菌超微结构的影响
短句来源
     THE ULTRASTRUCTURAL CHANGES OF MICRO-ORGANISMS AFTER EXPOSURE TO CEFOTAXIME
     氨噻肟头孢菌素对细菌超微结构的影响
短句来源
     In order to study the change of ultrastructure of bacteria after ozone water disinfection treatment. Negative staining technique was used to carry out observation under transmission electron microscope.
     为研究臭氧水消毒处理后的细菌超微结构改变,采用负染色技术在透射电镜下进行了观察。
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  相似匹配句对
     Cd ion changed bacteria ultrastructure prominently.
     Cd离子处理的细菌超微结构变化明显。
短句来源
     THE ULTRASTRUCTURAL CHANGES OF MICRO-ORGANISMS AFTER EXPOSURE TO CEFOTAXIME
     氨噻肟头孢菌素对细菌超微结构的影响
短句来源
     Lysogenic bacteria E.
     溶源性细菌E.
短句来源
     The soluble hydrogenase from C.
     光合细菌 C.
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     Ullrastructure of medulloblastoma
     髓母细胞瘤的超微结构
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  bacterial ultrastructure
The selection of a solid phase support growth medium, such as a filter membrane for in vitro studies of drug induced morphology, appears necessary if such studies are to reflect bacterial ultrastructure in vivo.
      
Bacterial ultrastructure and cell diversity can be correlated with a given level of pH.
      


The effect of benzothiazole-rifamycin on macromolecular synthesis and ultramicroscopic structure of S.aureus 209P and E. coli 2281 was reported. In both S. aureus 209P and E. coli 2281, incorporation of ~3H-uridine into RNA was strongly inhibited by benzothiazole-rifamycin. Incorporation of ~3H-leucine was inhibited slightly, but ~3H-thymidine incorporation was not inhibited. From these results, it was inferred that benzothiazole-rifamycin primarily inhibited RNA synthesis. A weak inhibition of bacterial protein...

The effect of benzothiazole-rifamycin on macromolecular synthesis and ultramicroscopic structure of S.aureus 209P and E. coli 2281 was reported. In both S. aureus 209P and E. coli 2281, incorporation of ~3H-uridine into RNA was strongly inhibited by benzothiazole-rifamycin. Incorporation of ~3H-leucine was inhibited slightly, but ~3H-thymidine incorporation was not inhibited. From these results, it was inferred that benzothiazole-rifamycin primarily inhibited RNA synthesis. A weak inhibition of bacterial protein synthesis by benzothiazole-rifamycin may be accounted for by secondary effects as a consequence of the inhibition of RNA synthesis, but bacterial DNA synthesis was not inhibitied by benzothiazolerifamycin. Cultures of S. aureus were exposed to 0.005, 0.05 and 0.5 μg/ml of benzothiazole-rifamycin, the inhibition of ~3H-uridine incorporation was 6.78%, 38.14% and 92o24% in 40 minutes. Cultures of E. coli were exposed to 50,100 and 200 μg/ml of benzothiazole-rifamycin, the inhibition of ~3H-uridine incorporation was 12.62%, 32.04% and 45.36%.

本文报告苯噻唑力复霉素对细菌生物大分子合成及超微结构的影响。该药可明显抑制~3H-尿嘧啶核苷掺入金黄色葡萄球菌209 p和大肠杆菌2281的RNA;对~2H-亮氨酸掺入细菌蛋白质仅有轻微抑制;对~3H-胸嘧啶核苷掺入细菌DNA无抑制作用。说明其作用机理主要是抑制细菌RNA合成。掺入试验还表明金黄色葡萄球菌对苯噻唑力复霉素有比大肠杆菌更高的敏感性。10倍于MIC浓度的苯噻唑力复霉素能使上述两种细菌超微结构明显改变。胞质失去完整结构,出现空泡,核糖体消失,但胞壁仍保存。

This paper reported semilethal concentration of Cu,Zn,Se and Cd ion to Vibrio fluvialis Ⅱby ten times dilution method,it was found to be 356×10-2、446×103、369or278×105μg/ml respectively.After the bacteria absorb Cu,Zn,Se and Cd,their ultrastructures were changed.These ions could induce the increase or bacteria ribosome,the DNA aggregated to stick of cube form.The Cu,Zn ion induced DNA fibril clearer than Se,Cd ion induced.The Cu,Zn ions also induced nucleoid area expanded or transparent area appeared,while...

This paper reported semilethal concentration of Cu,Zn,Se and Cd ion to Vibrio fluvialis Ⅱby ten times dilution method,it was found to be 356×10-2、446×103、369or278×105μg/ml respectively.After the bacteria absorb Cu,Zn,Se and Cd,their ultrastructures were changed.These ions could induce the increase or bacteria ribosome,the DNA aggregated to stick of cube form.The Cu,Zn ion induced DNA fibril clearer than Se,Cd ion induced.The Cu,Zn ions also induced nucleoid area expanded or transparent area appeared,while the transparent area did not appeared with Se,Cd treated.Four ions could destory their cell wall.Zn ion coarsened cell wall and made cell membrane seperated from the wall.The cytoplasma of Cu and Zn ions treated bacteria concentrated on periphery.If a mixture of Cu,Zn,Se and Cd ions treated the bacteria the phenomenon became clearer.Toxicity of Se ion was weak,bacteria ultrastructure did not change.Cd ion changed bacteria ultrastructure prominently.First,cell wall presented bubble protruding,later bubble bursted out.There were a lot of high density electron particle in bacteria cytoplasm,nucleoid area was not clear.DNA fibril aggregated to stick or cube Which dispersed in cytoplasm.

本文用10倍稀释法确定了河流弧菌Ⅱ在Cu,Zn,Se,Cd离子中的半致死浓度是3.56×10-2、4.46×10-3、3.69、2.78×10-5μg/ml。细菌吸收了这几种离子后其超微结构发生了明显变化。这些离子能诱导细菌内的核糖体增多,DNA纤丝凝聚成棍棒或块状。以Cu、Zn离子诱导DNA纤丝聚集较为明显,类核区扩大或出现透明区,而Se、Cd离子处理的菌核区不明显。而且4种离子对细胞壁也有不同程度的破坏,Zn离子使细胞壁粗糙与胞膜分离明显,Cu、Zn离子处理的样品细胞质集中在周边,细胞质内出现明显的电子致密颗粒。尤其是4种离子混合作用的细菌,上述现象更为明显。Se离子毒性相对较弱,细菌的超微结构没有明显的变化。Cd离子处理的细菌超微结构变化明显。首先,细胞壁呈泡状外突,最后小泡处破裂。细胞质内出现许多电子密度大的颗粒(可能是聚缩的DNA),类核区不明显,但范围比对照正常菌明显扩大,其内的DNA纤丝聚缩成短棍状或块状,散布在细胞质中。

Aim In order to investigate the bactericidal mechanism of garlic (G), hydrogen peroxide (H) and citric acid (C). Methods Their effects on the ultrastructure of porphyromonas gingivalis (Pg), Bacteroides fragilis (Bf) and Fusobacterium nucleatum (Fu) were observed by scanning electron microscopy. Resuts After oral anaerobes were exposed to G, H and C at 37℃ for 15 minutes, the ultrastructure changes of anaerobes differed in degree. Their cell wall, membrane were ruptured, thinned or disappeared, and...

Aim In order to investigate the bactericidal mechanism of garlic (G), hydrogen peroxide (H) and citric acid (C). Methods Their effects on the ultrastructure of porphyromonas gingivalis (Pg), Bacteroides fragilis (Bf) and Fusobacterium nucleatum (Fu) were observed by scanning electron microscopy. Resuts After oral anaerobes were exposed to G, H and C at 37℃ for 15 minutes, the ultrastructure changes of anaerobes differed in degree. Their cell wall, membrane were ruptured, thinned or disappeared, and the cell plasma was degenerated, such as ribosome aggregation, enzyme precipitation or plasma solution etc. Conclusions This study observed the effects of G, H and C on the ultrastructure of oral anareobes and supplied bactericidal mechanisms of drug.

目的探讨大蒜、枸椽酸和双氧水对口腔厌氧菌的杀菌机制。方法采用透射电镜,观察药物对核梭杆菌、牙龈卟啉菌和脆弱类杆菌的直接影响。结果观察到3种药物对各种细菌作用的超微结构改变不尽相同,药物在37℃作用15分钟后,可破坏细菌的胞壁结构,可见壁破裂、变薄或消失,胞浆变性,核糖体聚集成块状沉淀,或胞浆内容物溶解呈空泡变性等。结论观察药物对细菌的超微结构影响,可为研究口腔厌氧菌的生理、病理关系以及药物的解毒杀菌机制等提供实验依据

 
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