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-clockwise …

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.

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 immune …

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. These long …

Aug 7, 2025 · Spirochetes are a distinctive group of bacteria that cause a range of human diseases. These microorganisms are notable for their unique spiral shape and characteristic movement. …

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, and other species …

Mar 27, 2024 · Definition of Spirochete Spirochete is a type of bacteria characterized by its elongated, helically coiled (corkscrew-shaped) morphology, belonging to the phylum Spirochaetota.

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

Phylum: Spirochaetes - Bacterial cells characterized by a unique diderm (double-membrane) that gives them their Gram-negative characteristic. They are generally thin with a spiral-shaped appearance …

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 Leptospira, …