Spirochaete - Wikipedia
网页A spirochaete (/ ˈ s p aɪ r oʊ ˌ k iː t /) [4] or spirochete is a member of the phylum Spirochaetota (also called Spirochaetes [5] / ˌ s p aɪ r oʊ ˈ k iː t iː z /), which contains distinctive diderm (double-membrane) Gram-negative bacteria, most of which have long, helically coiled (corkscrew-shaped or spiraled, hence the name) cells ...
Spirochete | Definition, Examples, Diseases, & Facts | Britannica
网页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.
螺旋體門 - 维基百科，自由的百科全书
网页螺旋體門 （Spirochaetes）是一類很有特點的 細菌，具有長的螺旋形盤繞的細胞。 它們獨具細胞全長、在 細胞膜 和 細胞壁 之間的 鞭毛，稱爲“軸絲”（axial filament）。 螺旋體可以通過軸絲產生的扭轉運動前後移動。 多數螺旋體營 厭氧 自由生活，但有很多例外。 琳·马古利斯 曾經認爲 真核 細胞的 鞭毛 來自 共生 的螺旋體，但同意這一觀點的生物學家不多，因爲二者結構上沒有太多相似之處。 螺旋體門目前被分爲三科，重要成員包括： 鈎端螺旋體屬 …
Spirochaete - an overview | ScienceDirect Topics
网页Spirochaete In subject area: Agricultural and Biological Sciences are flagellated, slow-growing, gram-negative spirochetes found in the large intestinal tract and feces of a variety of animal species, including humans, nonhuman primates, dogs, pigs, and avian species.
Spirochete - Definition and Quiz - Biology Dictionary
网页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.
螺旋体（原核细胞型微生物）_百度百科
网页螺旋体（spirochete）是一类细长、柔软、弯曲呈螺旋状、运动活泼的原核细胞型微生物。 在生物学位置上介于细菌与原虫之间。 螺旋体在自然界中分布广泛，常见于水、土壤及腐败的有机物上，亦有的存在人体口腔或动物体内。 对人致病的主要有3个属：①钩端螺旋体属：对人致病的主要是钩端螺旋体；②密螺旋体属：对人致病的主要有梅毒螺旋体等；③疏螺旋体属：对人致病的主要有回归热螺旋体等。 其中钩端螺旋体和梅毒螺旋体在临床上的影响 …
螺旋体门 - 百度百科
网页螺旋体门（Spirochaetes）是一类很有特点的 细菌，具有长的螺旋形盘绕的细胞。 它们独具细胞全长、在 细胞膜 和 细胞壁 之间的 鞭毛，称为“轴丝”（axial filament）。 螺旋体可以通过轴丝产生的扭转运动前后移动。 多数螺旋体营 厌氧 自由生活，但有很多例外。 Lynn Margulis曾经认为 真核细胞 的 鞭毛 来自 共生 的螺旋体，但同意这一观点的生物学家不多，因为二者结构上没有太多相似之处。 螺旋体门被分为三科，重要成员包括： 钩端螺旋 …
8.11F: Spirochaetes - Biology LibreTexts
网页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.
Spirochaete - an overview | ScienceDirect Topics
网页Spirochaetes are thin-walled spiralled flexible organisms which are motile by means of an axial filament. They are not seen in a Gram-stain (except B. vincenti), but may be seen either by dark-ground illumination microscopy, or in a silver stain under the light microscope. Borrelia spirochaetes in the blood may also be seen in a Giemsa stain.
Spirochetes: Morphology, Classification, Disease - Microbe …
网页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. These long slender bacteria are only a fraction of a micron in diameter but 5 …