混合营养细胞的生理变化和基因表达,Prymnesium parvum,对混合源做出反应
Fengmiao Li1, Hailong Huang2, Qinfei Zhang3
1National Engineering Research Center of Marine Biotechnology and Engineering Ningbo University, Ningbo, Zhejiang, 315211, PR China; Key Laboratory of Aquacultural Biotechnology, Ningbo University, Ministry of Education, Ningbo, Zhejiang, 315211, PR China; Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, 310012, PR China.
Harmful algae
|August 20, 2025
概括
在高的环境下,prymnesium parvum适应水产养殖废水,形成有害的藻类繁殖 (HABs). 它的代谢重编程会影响的动态和毒素的产生.
科学领域:
- 海洋微生物学 海洋微生物学
- 水生物质毒理学研究
背景情况:
- 甲 (prymnesium parvum) 是一种在水产养殖废水中发现的产生毒素的细胞.
- 关于P. parvum对混合源的生理和遗传反应的知识有限.
研究的目的:
- 研究P. parvum对模拟的水产养殖废水与混合源的生理和基因表达反应.
- 了解P. parvum的适应能力和有害藻类繁殖 (HAB) 形成的潜力.
主要方法:
- 在模拟的水产养殖废水中培养P. parvum,其中度不同.
- 分析转录组数据以评估基因表达变化.
- 评估生理反应和毒素的产生.
主要成果:
- 在高混合度 (8.83 × 103 μmol/L) 下,P. parvum表现出高适应性和竞争力,促进HABs.
- 在低度 (8.83 × 101 μmol/L) 时,P. parvum消耗其他藻类,并产生毒素以防御.
- 转录组分析揭示了与相关的基因的上调和对谷氨酸代谢的显著影响,可能有利于直接的氨基转化.
结论:
- 在P. parvum中代谢重编程与细胞增殖和HABs形成有关.
- 对源的P. parvum的反应对水产养殖中的动态有着重要的生态后果.
- 对P. parvum的遗传和生理适应性的进一步研究对于在水产养殖中管理HAB至关重要.
相关概念视频
Overview of Metabolism
31.9K
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...
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...
31.9K
Inorganic Nitrogen Assimilation
104
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...
104
Overview of Nitrogen Metabolism
8.5K
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...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
8.5K
Stringent Response in E. coli
52
Bacterial growth is closely tied to nutrient availability, with cells proliferating exponentially under favorable conditions and entering a stationary phase when resources become scarce. This transition is mediated by a regulatory mechanism known as the stringent response, which allows bacteria to adapt to nutrient deprivation by modulating gene expression and metabolic activity.During nutrient scarcity, intracellular amino acid levels decline. It results in the accumulation of uncharged tRNAs...
52
Responses to Salt Stress
13.4K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.4K
Key Elements for Plant Nutrition
21.3K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
21.3K


