Fig. 2: A side-view of a spirochete cell which shows two axial filaments in opposing motion. One axial filament rotates in a clockwise orientation; an adjacent axial filament rotates in a counter …

Spirochete, any of a group of spiral-shaped bacteria, some of which are serious pathogens for humans, causing diseases such as syphilis, yaws, Lyme disease, and relapsing fever.

Jun 8, 2021 · These motile, gram-negative bacilli are classified into eight genera primarily on the basis of habitat, pathogenicity, phylogeny, morphological and physiological characteristics. …

Nov 10, 2025 · Spirochetes are found globally in water, soil, and as symbionts or parasites within animals, including humans. Their structure enables them to penetrate tissues and evade …

Although spirochetes are not a large group -- there are only six genera -- they have had tremendous impact on our lives. Both syphilis and Lyme disease are caused by these bacteria, …

Aug 18, 2025 · Learn about spirochetes: unique bacteria characterized by their distinct shape, diverse habitats, and roles in health and disease.

Spirochetes are defined as a phylum of bacteria characterized by long, helically coiled cells that possess axial filaments for movement, with notable groups including Treponema, Borrelia, and …

The spirochaetes belong to a phylum of distinctive double-membrane bacteria that are characterized by their long, spiral-shaped cells. The spirochaetes are chemoheterotrophic in …

The spirochetes are a large, heterogeneous group of spiral, motile bacteria. One family (Spirochaetaceae) of the order Spirochaetales consists of two genera whose members are …

Spirochetes are slender, spiral‑shaped bacteria with flexible helical cells and unique axial filaments that provide a corkscrew‑like motility.