相关实验视频

Updated: May 23, 2025

High-Throughput Metabolic Profiling for Model Refinements of Microalgae

High-Throughput Metabolic Profiling for Model Refinements of Microalgae

Published on: December 4, 2021

在放射性藻类-微藻类光合作用的代谢相互依赖和重新连接

Vera Nikitashina¹, Benjamin Bartels², Joost Samir Mansour³

¹Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, 07743 Jena, Germany.

The ISME journal

|March 9, 2025

概括

像Radiolaria这样的海洋浮游生物是营养不良海洋中重要的初级生产者. 这项研究揭示了微藻共生中的代谢重新连接,显示了藻类代谢物的宿主转化和相互益处.

科学领域:

海洋生物学海洋生物学
共生研究是对共生的研究.
代谢学代谢学代谢学

背景情况:

海洋浮游生物Radiolaria与共生微藻是寡质海洋中至关重要的初级生产者.
由于培养和采样这些生物体的挑战,研究有限.
了解它们的代谢相互作用是阐明光合作生的关键.

研究的目的:

研究海洋放射菌中的共生伙伴的代谢贡献.
为了比较两个丰富的放射性物种 (Collodaria和Acantharia) 的新陈代谢与它们的自由生活藻类.
揭示放射性藻类光合作用的机械基础.

主要方法:

对两种放射性藻类及其相关的自由生活藻类的代谢分析.
质谱成像用于在共生体和宿主细胞内定位代谢物.
代谢资料的比较分析,以确定共生变化.

主要成果:

共生放射菌表现出独特的代谢物,这些代谢物在自由生活的藻类中没有发现,这表明宿主驱动的代谢转化.
甲基硫烯酸 (DMSP) 存在于共生生物和宿主中,表明藻类提供了解保护.
有证据表明,Collodaria可能依赖于共生维生素B3,藻类细胞膜在共生过程中发生变化.

结论:

海洋放射菌及其微藻共生体表现出强烈的相互依赖,具有显著的代谢重新连接.
这种共生涉及藻类代谢物的宿主修饰,并提供诸如质和潜在的维生素之类的必需化合物.
这项研究突出了海洋浮游生物中成功的光合作用背后的复杂代谢融合.

关键词:

这就是阿坎塔里亚 (Acantharia).科洛达利亚 (Collodaria) 是一种类动物.代谢组代谢组的代谢微藻的相互作用这是光合作生态的光合作生态.无线电是什么意思无线电是什么意思

更多相关视频

Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation

Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation

Published on: August 14, 2020

Physiological Characterization of the Coral Holobiont Using a New Micro-Respirometry Tool

Physiological Characterization of the Coral Holobiont Using a New Micro-Respirometry Tool

Published on: April 28, 2023

相关概念视频

The Calvin Benson Cycle

The Calvin Benson Cycle

Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...

The Anatomy of Chloroplasts

The Anatomy of Chloroplasts

Green algae and plants, including green stems and unripe fruit, harbor specialized organelles called chloroplasts to carry out photosynthesis. They coordinate both stages of photosynthesis — the light-dependent reactions and the light-independent reactions. The light-dependent reactions use sunlight to release oxygen and produce chemical energy in the form of ATP and NADPH, and the light-independent reactions capture CO2 and use ATP and NADPH to produce sugar.
Structure of...

Overview of Metabolism

Overview of Metabolism

Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...

Channel Rhodopsins

Channel Rhodopsins

Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...

Photosystems

Photosystems

Photosystems are multiprotein complexes that form the functional units of photosynthesis in plants, algae, and cyanobacteria. They are found embedded in the membrane of tiny sac-like structures called thylakoids placed inside the chloroplast.
Functioning of Photosystems
Photosystems contain many pigment molecules, such as chlorophylls and carotenoids, arranged in a particular organization across two domains — the antenna complex and the reaction center. The main aim of the pigment...

C4 Pathway and CAM

C4 Pathway and CAM

Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...