Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Plasma Membrane in Bacteria and Archaea01:27

Plasma Membrane in Bacteria and Archaea

3.1K
The plasma membrane is an essential cellular structure responsible for maintaining cellular integrity and regulating the selective transport of molecules. While bacteria and archaea share the fundamental function of plasma membranes, their structural and molecular differences reflect adaptations to distinct ecological and physiological challenges.Bacterial Plasma MembranesBacterial plasma membranes are predominantly composed of phospholipids with fatty acid chains ester-linked to a glycerol...
3.1K
Bacterial Phylum Proteobacteria01:26

Bacterial Phylum Proteobacteria

1.1K
Proteobacteria, one of the largest and most diverse bacterial phyla, encompasses a wide range of Gram-negative bacteria distinguished by their outer membrane composed of lipopolysaccharides. These microorganisms exhibit various metabolic capabilities, including phototrophy, chemolithotrophy, and heterotrophy, and thrive in diverse environments from soil to aquatic systems and host-associated niches. The phylum is divided into six classes: Alphaproteobacteria, Betaproteobacteria,...
1.1K
Bacterial Phylum Planctomycetes01:26

Bacterial Phylum Planctomycetes

564
Planctomycetes are a group of morphologically distinct bacteria predominantly classified into two orders: Planctomycetales and Brocadiales. These gram-negative bacteria exhibit unique features, including division by budding and the presence of stalks or appendages. Their cells are often found in rosette arrangements, and they are notable for possessing an S-layer in their cell envelope, which is relatively uncommon among bacteria. Additionally, Planctomycetes frequently exhibit intracellular...
564
Bacterial Phylum Tenericutes01:24

Bacterial Phylum Tenericutes

673
The phylum Tenericutes, which includes the single class Mollicutes, comprises bacteria that lack cell walls. The term "Mollicutes" derives from the Latin word mollis, meaning "soft." These organisms are among the smallest known and are commonly referred to as mycoplasmas due to the prominence of the genus Mycoplasma, which includes well-known human pathogens. Despite their inability to stain gram-positively (a result of their lack of cell walls), mycoplasmas are phylogenetically related to the...
673
Bacterial Phylum Verrucomicrobiota01:26

Bacterial Phylum Verrucomicrobiota

756
The phylum Verrucomicrobiota comprises at least four characterized orders, with most species classified within the order Verrucomicrobiotales. Members of this phylum are either aerobic or facultatively aerobic, with the ability to ferment sugars. A notable exception is the genus Methylacidiphilum, which consists of aerobic methanotrophs. Additionally, some Verrucomicrobiota establish symbiotic relationships with protists. These bacteria are widely distributed across various environments,...
756
Deep Sea Microbial Ecology01:18

Deep Sea Microbial Ecology

53
The deep ocean and its underlying sediments represent vast, largely unexplored microbial habitats that extend far beyond the sunlit photic zone. The photic (euphotic) zone typically spans the upper ~100–200 meters of pelagic waters in the open ocean, but its depth varies geographically and seasonally, where sufficient light supports photosynthetic life. Below this lies the deep sea, spanning roughly 1000–6000 meters (bathypelagic to abyssal zones), with deeper hadal trenches...
53

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Complete genome sequence of Litorivicinus marinus strain IMCC2782<sup>T</sup> isolated from coastal seawater.

BMC genomic data·2026
Same author

Aliikangiella litoralis sp. nov. and Aliikangiella aequoris sp. nov., isolated from coastal seawaters of the Yellow Sea.

Journal of microbiology (Seoul, Korea)·2026
Same author

Phosphoproteomics reveals essential regulatory roles of phosphorylation in marine oligotrophic bacteria.

Marine life science & technology·2026
Same author

Virome datasets and viral metagenome-assembled genomes from aquaculture-impacted freshwater environments.

Scientific data·2026
Same author

Targeted Discovery of β‑Branched Conjugated Polyketides from Bacteria Based on Genomic and Metabolomic Hallmarks.

JACS Au·2026
Same author

Molecules, microbes, and function: synchronizing depth-resolved molecular and microbial time series at BATS.

mSystems·2026

相关实验视频

Updated: Apr 30, 2026

An Aquatic Microbial Metaproteomics Workflow: From Cells to Tryptic Peptides Suitable for Tandem Mass Spectrometry-based Analysis
08:09

An Aquatic Microbial Metaproteomics Workflow: From Cells to Tryptic Peptides Suitable for Tandem Mass Spectrometry-based Analysis

Published on: September 15, 2015

8.2K

在无处不在的海洋细菌SAR11中的蛋白质素.

Stephen J Giovannoni1, Lisa Bibbs, Jang-Cheon Cho

  • 1Department of Microbiology.

Nature
|November 4, 2005
PubMed
概括

蛋白质素是以光为动力的质子,对海洋微生物能量至关重要. 这项研究表明,丰富的Pelagibacter ubique (SAR11) 表达了这一基因,在各种光线条件下作为质子发挥作用.

更多相关视频

MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria
08:34

MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria

Published on: February 23, 2021

6.6K
A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis
09:47

A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis

Published on: August 26, 2021

7.0K

相关实验视频

Last Updated: Apr 30, 2026

An Aquatic Microbial Metaproteomics Workflow: From Cells to Tryptic Peptides Suitable for Tandem Mass Spectrometry-based Analysis
08:09

An Aquatic Microbial Metaproteomics Workflow: From Cells to Tryptic Peptides Suitable for Tandem Mass Spectrometry-based Analysis

Published on: September 15, 2015

8.2K
MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria
08:34

MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria

Published on: February 23, 2021

6.6K
A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis
09:47

A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis

Published on: August 26, 2021

7.0K

科学领域:

  • 微生物生态学 微生物生态学
  • 海洋学 海洋学 海洋学
  • 分子生物学分子生物学

背景情况:

  • 蛋白质素是依赖光的质子,对海洋环境中的微生物代谢至关重要.
  • 它们在海洋中的广泛分布和活动是已知的,但它们在培养生物中的功能仍然难以捉摸.
  • 蛋白质素基因以前只在环境DNA中发现,而不是在培养细菌中.

研究的目的:

  • 为了研究在培养的海洋细菌中蛋白质素的表达和功能.
  • 为了确定蛋白质素是否有助于丰富的SAR11类中的能量代谢.
  • 了解光在proteorhodopsins in situ活动中的作用.

主要方法:

  • 在海水和自然海洋环境中培养SAR11菌株HTCC1062 (Pelagibacter ubique).
  • 在不同的光照条件下 (白天光线与黑暗) 对蛋白质素的基因表达分析.
  • 功能性测试以确认Pelagibacter proteorhodopsin的质子活动.

主要成果:

  • 在实验室和自然海洋环境中培养时,Pelagibacter ubique表达了一种蛋白质素基因.
  • 表达的佩拉吉巴克特蛋白质素 (Pelagibacter proteorhodopsin) 作为依赖光的质子.
  • 基因表达和细胞生长率不受光线暴露的影响,这表明构成性功能或替代能源.

结论:

  • 这项研究证明了SAR11类的培养成员中蛋白质素的功能表达.
  • 据证实,蛋白质素在丰富的海洋细菌中是活跃的质子,有助于它们的能量预算.
  • 这些发现提供了关于蛋白质素在海洋微生物群落中的生态作用及其适应光线可用性的见解.