关键区别 - SpirillaVS螺旋体
Microorganisms are mainly classified as细菌,蓝细菌,,,,菌类,,,,andProtists。细菌根据其形状,营养模式和代谢特征进一步分类。基于形状,有两个主要属属于螺旋形细菌,即螺旋藻和螺旋体。螺旋拉是螺旋形细菌,具有刚性细胞壁and utilize polarflagellafor its locomotion. Spirochetes are spiral-shaped bacteria that have a flexible cell wall and possess axial filaments for its motility. The关键区别在螺旋形和螺旋体之间,基于它们用于运动的不同结构。Spirilla具有极地鞭毛,而螺旋体具有轴向丝的需求。
CONTENTS
1。概述和关键差异
2。什么是Spirilla
3。什么是螺旋体
4。Similarities Between Spirilla and Spirochetes
5。并排比较 - 表格形式的Spirilla vs Spirochetes
6.Summary
什么是Spirilla?
Spirilla(singular –Spirillum)是直径为1.4 - 1.7微米的螺旋形细菌,长度为60微米。Spirilla是革兰氏阴性,,,,chemoorganotrophic bacteria. Spirilla can be found in freshwater and they can also act as biological indicators of water pollution. These spiral shapes bacteria have a rigid cell wall structures. The storage granules are composed of volutin, which are intracytoplasmic organic granules complexed with inorganic phosphates. Volutins substitute the poly beta-hydroxybutyrate granules found commonly in bacteria.
运动的运动spirilla物种是与其他螺旋形细菌(例如螺旋体)的区别因子。它们具有极地鞭毛以进行运动。最初,人们认为Spirilla由一个极地鞭毛筋膜组成。目前,某些物种被认为具有多个鞭毛束。这些多个鞭毛筋膜聚集以形成一个鞭毛。在此期间染色过程,,,,usually, only one flagellum is observed in Spirilla. The flagella ofSpirillum跨度约为3微米,长度几乎为一个波。许多科学家描述了双极鞭毛运动的机制。在更广泛的背景下,据说它可以沿鞭毛旋转的相反方向旋转细胞体。因此,据说描绘了开瓶器型运动。
螺旋拉的特征是微量生物的生物,它们的生存需要1% - 9%的氧气。Spirilla的其他生化特征如下。
- 弱过氧化氢酶活性。
- 强氧化酶和磷酸酶活性。
- 无法减少硝酸盐。因此,不能利用硝酸盐。
- 请勿氧化或发酵碳水化合物。
某些螺旋拉生物可以归类为引起疾病的细菌,该物种S. minoris a cause of rat bite fever in humans.
什么是螺旋体?
螺旋体是spiral-shaped gram-negative, chemoheterotrophic bacteria, about 3 – 500 micrometers in length. They are commonly found in freshwater environments. They are motile bacteria, and they have specialized structures known as axial filaments for locomotion. Each spirochete may contain up to 100 axial filaments where the lowest would be two axial filaments per organism. The significance of the axial filaments is its position. The axial filaments, unlike flagella, run between the inner and the outer membrane of the spirochete. Therefore, the axial filaments arise from the periplasmic surface. Some species of spirochetes contain bundles of fibrils in thecytoplasm,,,,these cytoplasmic fibrils are observed in response to different stress conditions in spirochetes. Most Spirochetes are anaerobic and they reproduce bybinary fission,这是一种在细菌中通常观察到的无性繁殖方式。
螺旋体是important bacteria when it comes to its involvement in pathogenesis. The host – spirochete relationship has been shown to be harmful as most species are disease-causing. The genera of spirochetes includingSpirochaeta, Treponema, Borrelia,andLeptospira参与引起致命疾病。
- TreponemaSSP
- Treponema pallidum pallidum –梅毒
- Treponema pallidum pertenue –偏航
- 疏螺旋体SSP
- 疏螺旋体recurrentis –Relapsing fever (transmitted by lice and ticks)
- Borellia burgdorferi –莱姆病
- LeptospiraSSP-Leptospira
Spirilla和Spirochetes之间有什么相似之处?
- Spirilla和Spirochetes组都是革兰氏阴性细菌。
- 在淡水环境中,螺旋藻和螺旋体生物都可以找到。
- Spirilla和螺旋体都是螺旋形细菌。
- Spirilla和Spirochetes都是流动的生物。
- Both Spirilla and Spirochetes can cause diseases.
Spirilla和Spirochetes有什么区别?
Spirilla vs Spirochetes |
|
Spirilla是螺旋形细菌,具有刚性细胞壁,可利用极地鞭毛进行运动。 | 螺旋体是具有柔性细胞壁的螺旋形细菌,其运动性具有轴向丝。 |
细胞壁结构 | |
Rigid cell wall is possessed by spirilla. | 灵活的细胞壁由螺旋体拥有。 |
运动 | |
Spirilla的运动是双极鞭毛的。 | 螺旋体的运动是轴向丝。 |
Requirement of Oxygen for Survival | |
Spirilla是microaerophilic. They require 1% – 9% oxygen. | 螺旋体是厌氧。它们不需要氧气。 |
摘要 - SpirillaVS螺旋体
Spirillaand Spirochetes are spiral-shaped bacteria that show contrasting features in their motility patterns. Spirilla use bipolar flagella to support their locomotion, whereas Spirochetes use many axial filaments arising from the periplasmic space to support their locomotion. Both are Gram-negative bacteria and they are involved in manifesting diseases. Spirochetes result in more deadly diseases when compared to the species of Spirilla. This is the difference between spirilla and spirochetes.
参考:
1.Holt,SC。“螺旋体的解剖学和化学。”微生物学评论,美国国家医学图书馆,1978年3月。在这里可用
2。克里格,N >生物学chemoheterotrophic年代pirilla.” Bacteriological Reviews, U.S. National Library of Medicine, Mar. 1976.在这里可用
图片提供:
1。’Spirillen’By Wolframm Adlassnig – Own work, (Public Domain) via下议院维基梅迪亚
2.从CDC公共卫生图像库中获得的Leptospira征服RGA 01’。(公共领域)通过下议院维基梅迪亚
Leave a Reply