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

Preparation of Samples for Electron Microscopy01:20

Preparation of Samples for Electron Microscopy

5.4K
To be visualized by an electron microscope, either transmission or scanning, biological samples need to be fixed (stabilized) so the electron beam does not destroy them and dried thoroughly (desiccated/dehydrated) so the vacuum does not affect them. Fixation needs to be done as quickly as possible because the sample properties will start changing as soon as it is removed from its natural environment. For example, in a tissue sample, the oxygen levels begin decreasing, causing an altered...
5.4K

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

Geochemistry shapes microbial diversity and selected functional traits in flowback and produced waters from hydraulically fractured formations.

FEMS microbiology ecology·2026
Same author

A marine stem-myriapod from the Silurian Waukesha Lagerstätte, Wisconsin, USA: terrestrial traits pre-date the transition to land.

Proceedings. Biological sciences·2026
Same author

Biological use of molybdenum and tungsten stems back to 3.4 billion years ago.

Nature communications·2026
Same author

Survival of cyanobacteria and mitigation of Fe(II) toxicity effects in a silica-rich Archean ocean.

Nature communications·2026
Same author

Genomic adaptation strategies to habitat switching in Korarchaeota.

Science advances·2026
Same author

An expansive global oxygenation of Earth's surface environments 1.4 billion years ago.

Nature communications·2025

相关实验视频

Updated: Jun 16, 2025

Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis
07:57

Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis

Published on: August 15, 2018

14.0K

在实验性埃迪亚卡拉风格的保存中对外原性矿化进行控制.

Silvina Slagter1,2, Kurt O Konhauser3, Derek E G Briggs1

  • 1Department of Earth & Planetary Sciences, Yale University, New Haven, Connecticut, USA.

Geobiology
|August 16, 2024
PubMed
概括

早期复杂生命的埃迪亚卡拉式保存涉及到快速的酸盐矿物沉. 实验表明,软组织上的和粘土涂层如何受到海水的影响,导致各种沉积物中的化石化.

关键词:
艾迪亚卡拉生物群 (Ediacara Biota) 是一个生物群.克莱斯:克莱斯是指粘土.实验 实验 实验 实验 实验化石化 化石化氧化循环的循环.

更多相关视频

Microbiota of Attine Ants' Gardens: Visualizing a Microbial Landscape by Scanning Electron Microscopy
07:00

Microbiota of Attine Ants' Gardens: Visualizing a Microbial Landscape by Scanning Electron Microscopy

Published on: October 4, 2024

564
Agar-Block Microcosms for Controlled Plant Tissue Decomposition by Aerobic Fungi
12:34

Agar-Block Microcosms for Controlled Plant Tissue Decomposition by Aerobic Fungi

Published on: February 3, 2011

15.1K

相关实验视频

Last Updated: Jun 16, 2025

Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis
07:57

Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis

Published on: August 15, 2018

14.0K
Microbiota of Attine Ants' Gardens: Visualizing a Microbial Landscape by Scanning Electron Microscopy
07:00

Microbiota of Attine Ants' Gardens: Visualizing a Microbial Landscape by Scanning Electron Microscopy

Published on: October 4, 2024

564
Agar-Block Microcosms for Controlled Plant Tissue Decomposition by Aerobic Fungi
12:34

Agar-Block Microcosms for Controlled Plant Tissue Decomposition by Aerobic Fungi

Published on: February 3, 2011

15.1K

科学领域:

  • 古生物学的古生物学
  • 地质化学 地质化学
  • 沉积物学的沉积物学

背景情况:

  • 埃迪亚卡拉式的保存代表了复杂宏观生命的最早证据.
  • 这些软体生物体在类沉积物中的化石化机制仍在争论中.
  • 这种保存发生在各种砂岩面上,从石英到富含粘土的类型.

研究的目的:

  • 调查埃迪亚卡拉风格保存背后的机制.
  • 为了测试溶解的二氧化和矿物基质在化石化中的作用.
  • 了解早期地球环境中软组织的保存潜力.

主要方法:

  • 使用各种矿物基质 (石英,高,氧化铁) 的实验模拟.
  • 使用各种软体生物 (微藻,蓝藻,无脊椎动物) 进行测试.
  • 不同的溶解二氧化 (DSi) 度以模仿埃迪亚卡拉海水条件 (0.52.0毫米).

主要成果:

  • 在有机基板上观察到广泛的无形二氧化和authigenic粘土涂层.
  • 记录了在实验溶液中溶解的二氧化的逐渐减少.
  • 在各种条件下证明了软组织的快速保存.

结论:

  • 酸盐矿物沉,受海水DSi的影响,迅速保存软组织.
  • 基质组成和DSI水平是埃迪亚卡拉式化石化中的关键因素.
  • 这些相互作用为早期复杂生态系统的保护提供了可信的机制.