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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...
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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(
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