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

Population Growth00:57

Population Growth

25.3K
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
25.3K
Meristems and Plant Growth02:36

Meristems and Plant Growth

46.2K
Plants grow throughout their lives; this is called indeterminate growth, and it distinguishes plants from most animals. Although certain parts of plants stop growing (e.g., leaves and flowers), others grow continuously—like roots and stems.
46.2K
Bacterial Growth Curve01:28

Bacterial Growth Curve

119
The bacterial growth curve is a fundamental concept in microbiology that describes the dynamics of bacterial population growth in a closed system with controlled environmental conditions, such as temperature and nutrient availability. This curve is divided into four distinct phases: lag, log (exponential), stationary, and death phases, each reflecting a unique stage of bacterial adaptation and growth. During the lag phase, bacteria acclimate to their surroundings by synthesizing essential...
119
Cells Coordinate Growth and Proliferation02:36

Cells Coordinate Growth and Proliferation

4.5K
Cell size is a significant factor impacting cellular design, function, and fitness. There exists some internal coordination by which cells double their masses before division, thus, achieving homeostasis. Coordination between cell growth and proliferation depends on the checkpoints in between cell cycle phases. Loss of coordination or failure in the checkpoint mechanism can drive the cell to uncontrolled growth and loss of cellular function. Like dividing cells that coordinate cellular growth,...
4.5K
Responses to Gravity and Touch02:26

Responses to Gravity and Touch

34.9K
Gravitropism: Plant Responses to Gravity
34.9K
Growth of Cartilage and Bone Tissue01:27

Growth of Cartilage and Bone Tissue

3.4K
Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
3.4K

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

A Single-Nucleotide Substitution Generates a de Novo Promoter That Activates a Latent Metabolic Bypass in Escherichia coli.

Molecular microbiology·2026
Same author

Gastric ultrasound reveals no association between prolonged fasting duration and gastric residual volume in pediatric patients.

Scientific reports·2026
Same author

Author Correction: Sub-technology market share strongly affects critical material constraints in power system transitions.

Nature communications·2026
Same author

Electrostatic asymmetry-assisted polarization enables tertiary amine anchoring in single-molecule junctions.

Chemical communications (Cambridge, England)·2026
Same author

Objectively Measured Social Media Duration in Relation to Non-Suicidal Self-Injury, Suicide Ideation, and Suicide Attempt Among Young Adults.

Archives of suicide research : official journal of the International Academy for Suicide Research·2026
Same author

Omics-assisted genetic dissection and coordinated improvement of apple flesh color, flavor, and fruit size.

Molecular plant·2026
Same journal

Salinity-driven microbial adaptation of hydrocarbon-degrading communities in coastal sediments.

mSphere·2026
Same journal

Tools for genetic manipulation of the endemic fungal pathogen <i>Emergomyces africanus</i> and application of a fluorescent reporter strain in infection models.

mSphere·2026
Same journal

Cysteine-S-nitrosylation inhibits ROP5-mediated immune evasion in <i>Toxoplasma gondii</i>.

mSphere·2026
Same journal

Inheritance of four-membrane-bound structures in the "apicoplast-minus" <i>Plasmodium falciparum</i>.

mSphere·2026
Same journal

mSphere of Influence: The bacterial growth law-revisiting the old to discover the new.

mSphere·2026
Same journal

Preclinical characterization of immune responses induced by a candidate gonococcal native outer membrane vesicle vaccine.

mSphere·2026
查看所有相关文章

相关实验视频

Updated: Jul 27, 2025

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth
11:46

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth

Published on: August 10, 2011

17.1K

增长的增长的增长

Qi Zou1, Huijuan Dong2, John E Cronan1,2

  • 1Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.

mSphere
|June 8, 2023
PubMed
概括
此摘要是机器生成的。

在脂合成中,Enterococcus faecalis PlsX 的作用至关重要. 抑制器突变,如截断的FabO,通过增加和脂肪酸恢复生长,这对于细胞膜脂质至关重要.

关键词:
增长的增长增长的增长增长的增长.脂化合物合成的方法和脂肪酸是一种和脂肪酸.在 sn1 位置上.压缩器的压缩器

更多相关视频

Breast Milk Enhances Growth of Enteroids: An Ex Vivo Model of Cell Proliferation
09:02

Breast Milk Enhances Growth of Enteroids: An Ex Vivo Model of Cell Proliferation

Published on: February 15, 2018

19.5K
Saccharomyces cerevisiae Exponential Growth Kinetics in Batch Culture to Analyze Respiratory and Fermentative Metabolism
07:38

Saccharomyces cerevisiae Exponential Growth Kinetics in Batch Culture to Analyze Respiratory and Fermentative Metabolism

Published on: September 30, 2018

42.2K

相关实验视频

Last Updated: Jul 27, 2025

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth
11:46

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth

Published on: August 10, 2011

17.1K
Breast Milk Enhances Growth of Enteroids: An Ex Vivo Model of Cell Proliferation
09:02

Breast Milk Enhances Growth of Enteroids: An Ex Vivo Model of Cell Proliferation

Published on: February 15, 2018

19.5K
Saccharomyces cerevisiae Exponential Growth Kinetics in Batch Culture to Analyze Respiratory and Fermentative Metabolism
07:38

Saccharomyces cerevisiae Exponential Growth Kinetics in Batch Culture to Analyze Respiratory and Fermentative Metabolism

Published on: September 30, 2018

42.2K

科学领域:

  • 微生物学 微生物学
  • 分子生物学分子生物学
  • 生物化学 生物化学

背景情况:

  • 菌 (Enterococcus faecalis) 的酸载体蛋白 (ACP) 酸转移酶 (PlsX) 对于脂合成和结合外部脂肪酸至关重要.
  • 失去PlsX会严重影响生长,因为它会破坏新的脂合成,导致细胞膜中异常的链长度.

研究的目的:

  • 研究抑制器突变恢复缺乏PlsX的Enterococcus faecalis中生长的机制.
  • 为了确定在脂合成中补偿PlsX缺乏症所涉及的特定酶和途径.

主要方法:

  • 对Enterococcus faecalis ∆plsX抑制剂突变的遗传分析.
  • 铁酶活性和乙-ACP合成的生物化学特征.
  • 脂酸链组成和位置分布的分析.

主要成果:

  • 一种截断的β-基酸-ACP合成酶II (FabO) 形式通过增加和酸-ACP合成来恢复生长.
  • 鉴定出了铁酶Tese,它优先分裂不和的乙-ACP.
  • 过度表达以-ACP减少酶 (FabK或FabI) 也通过促进和脂肪酸的产生来挽救了∆plsX的生长.
  • 棕酸在∆plsX菌株中支持比油酸更好的生长和脂合成.
  • 和的乙链被首选纳入脂的sn1位置.

结论:

  • 高和性乙烯基-ACP的生产是克服Tese化酶对不和性乙烯基-ACP的偏好,并使脂合成的必要条件.
  • ∆plsX突变体的生长恢复依赖于增加和脂肪酸可用于脂生物合成的途径.