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Biology

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Microbiology

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Microbial Diversity

Spirochete Shape, Motion, and Disease

Description

Spirochetes are a group of gram-negative bacteria with a thin, flexible, tightly coiled shape. They live in aquatic sediments and in animals. Some species are harmless, while others cause diseases such as syphilis and Lyme disease.

A key feature of spirochetes is their movement. They use endoflag...

Transcript

螺旋体是革兰氏阴性、呈螺旋状的细菌,分类上属于螺旋体门(Spirochaetes)。

螺旋体中的端鞭毛产生类似开瓶器的运动,使其能够穿过黏稠物质或组织。

Spirochaeta 属包括厌氧和兼性好氧的螺旋体,它们自由生活于淡水、沉积物和海洋中。

值得注意的物种包括来自含硫化物的淡水和海洋环境中的Spirochaeta plicatilis

Cristispira 是一种螺旋体属,存在于许多双壳类软体动物(如蛤、贻贝和牡蛎)的晶杆中。

密螺旋体属(Treponema)包括厌氧或微需氧的螺旋体,这些微生物可作为人和动物的共生菌或病原体,例如常见于人口腔中的齿垢密螺旋体(