Spirochaete - Wikipedia
A spirochaete (/ ˈspaɪroʊˌkiːt /) [4] or spirochete is a member of the phylum Spirochaetota (also called Spirochaetes[5] / ˌspaɪroʊˈkiːtiːz /), which contains distinctive diderm (double-membrane) Gram-negative bacteria, most of which have long, helically coiled (corkscrew-shaped or spiraled, hence the name) cells. [6]
Spirochete | Definition, Examples, Diseases, & Facts | Britannica
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.
Spirochetes: Morphology, Classification, Disease - Microbe …
2021年6月8日 · 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
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.
Spirochete - Definition and Quiz - Biology Dictionary
2017年4月28日 · 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 the prokaryotes.
Introduction to the Spirochetes - University of California Museum …
Spirochetes are long and slender bacteria, usually only a fraction of a micron in diameter but 5 to 250 microns long. They are tightly coiled, and so look like miniature springs or telephone cords.
Intestinal Spirochetosis: To Treat or Not to Treat - PMC
Spirochetes, tiny spiral-shaped bacteria sometimes found on the surface of epithelial cells, represents a well-debated conundrum in the gastroenterology and pathology world. Colonization of spirochetes in the lower gastrointestinal tract is a rare condition and can lead to a myriad of presentations, ranging from asymptomatic individuals to ...
Spirochaete - an overview | ScienceDirect Topics
Spirochetes are a phylogenetically ancient and distinct group of microorganisms. Because of their propensity to cause diseases in humans, B. burgdorferi and T. pallidum are the two most well-studied spirochetes.
Spirochaete - an overview | ScienceDirect Topics
Spirochetes represent a group of helically shaped and motile bacteria (8–30 μm long and 0.1–0.5 μm wide) all of which are morphologically characterized by a trilaminar membrane surrounding the protoplasmic cylinder and by periplasmatic localized flagella.
8.11F: Spirochaetes - Biology LibreTexts
2022年12月24日 · The spirochaetes are chemoheterotrophic in nature, free-living and capable of thriving in anaerobic environments. They are often distinguished from other bacterial phyla by the location of their flagella. The flagella, in spirochaetes, runs lengthwise between the inner and outer membranes in the periplasmic space.