相关实验视频

Updated: May 5, 2026

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Published on: October 7, 2020

识别导致绿潮的物种上的固细菌,并评估它们的固能力

Tingting Wu¹, Fangling Bi¹, Hongtao Liu¹

¹College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China.

Bioresource technology

|March 27, 2025

概括

来自Cobetia属的固细菌在Ulva prolifera上被发现. 这些微生物通过生物固提供必需的,大大促进了海藻的生长.

科学领域:

海洋微生物学海洋微生物学
藻类共生是一种藻类共生.
生物固化的生物固.

背景情况:

藻类在其物理层中拥有多样化的微生物群落.
藻类和细菌之间的相互关系对于藻类形态发生和生长至关重要.
Ulva prolifera 拥有复杂的微生物群落,影响其发展.

研究的目的:

为了分离和识别与Ulva prolifera相关的固细菌.
为了研究这些细菌对Ulva prolifera生长的影响.
确认生物固定在增强海藻种植中的作用.

主要方法:

使用2216E介质从Ulva prolifera中分离了28种细菌菌株.
使用nifH基因对细菌菌株的分子鉴定.
鉴定出的固细菌与无菌Ulva prolifera的共同培养.

主要成果:

鉴定出三种属于科贝蒂亚属的细菌菌株含有nifH基因.
与这些Cobetia菌株共同培养在31天内显著增强了Ulva prolifera的生长.
量化基酶活性证实了生物固定,为海藻提供.

结论:

Ulva prolifera是固微生物的宿主,特别是Cobetia属中的微生物.
这些共生细菌通过提供促进Ulva prolifera生长起着至关重要的作用.
这些发现支持利用这些固细菌来增强海藻水产养殖的潜力.

关键词:

增长的增长增长的增长基酶的活性活动这是一个 nifH 基因.乌尔瓦的繁殖速度很快.

更多相关视频

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Published on: October 31, 2019

Microplot Design and Plant and Soil Sample Preparation for 15Nitrogen Analysis

Microplot Design and Plant and Soil Sample Preparation for 15Nitrogen Analysis

Published on: May 10, 2020

相关概念视频

The Roles of Bacteria and Fungi in Plant Nutrition

The Roles of Bacteria and Fungi in Plant Nutrition

Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.

Overview of Nitrogen Metabolism

Overview of Nitrogen Metabolism

Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...

Carbon-dioxide Fixation

Carbon-dioxide Fixation

Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...

Inorganic Nitrogen Assimilation

Inorganic Nitrogen Assimilation

Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...