spirochete, (order Spirochaetales), 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. Examples of genera of spirochetes include Spirochaeta, Treponema, Borrelia, and Leptospira.

Spirochaetes are chemoheterotrophic in nature, with lengths between 3 and 500 μm and diameters around 0.09 to at least 3 μm. [7]

Jun 8, 2021 · Spirochetes are long, thin, flexible, spirally coiled helical bacilli. These motile, gram-negative bacilli are classified into eight genera primarily on the basis of habitat, pathogenicity, phylogeny, morphological and physiological characteristics.

Spirochetes Definition, Characteristics, Gram Stain and Culture What are Spirochetes? Spirochetes (spirochaetes) are Gram-negative, spiral-shaped bacteria of the phylum Spirochaetes. In nature, they may exist as free-living bacteria, symbionts, or as parasites capable of causing diseases in animals.

Mar 28, 2024 · Spirochetes are a unique group of bacteria, some of which are responsible for causing significant diseases in humans and animals. Their pathogenicity is attributed to a combination of their structural features, ability to evade the host immune response, and the toxins they produce. Here’s a detailed look at the pathogenic mechanisms employed ...

Jan 17, 2019 · Spirochetes are a group of six genera of spiral-shaped, slender bacteria of varying length. They are either free-living or host-associated. They are found in the human oral...

Apr 28, 2017 · A spirochete is a type of bacteria within the phylum Spirochetes. The spirochetes are so called because they are very long, thin shape and helically coiled, hence they have a spiraling corkscrew shape. The helical shape is one of three morphological categories of …

Jan 31, 2023 · Infections caused by spirochete are known as spirochetal infections. Some of the spirochetes cause diseases in humans. These are gram-negative, mobile, spiral bacteria with a length of 3 to 500 micrometers.

Nov 27, 2024 · Spirochetes are a unique group of bacteria known for their spiral shape and motility. These characteristics enable them to navigate complex environments, including those within host organisms, often contributing to their role as pathogens in diseases such as Lyme disease and syphilis.

Intestinal spirochetosis is an enigmatic condition characterized by the colonization of the colonic epithelium by spirochetes, a type of spiral-shaped bacteria. While often asymptomatic, this condition can lead to a variety of gastrointestinal symptoms and potential complications.