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関連する概念動画

Green Algae01:21

Green Algae

674
Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
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Biosynthesis of Lipids01:29

Biosynthesis of Lipids

496
Microbial membranes exhibit remarkable diversity in lipid composition, reflecting evolutionary adaptations to various environmental conditions. The three domains of life—Bacteria, Archaea, and Eukarya—synthesize membrane lipids through distinct biosynthetic pathways, leading to fundamental structural differences that impact membrane stability, function, and adaptability.Fatty Acid-Based Lipids in Bacteria and EukaryaBacteria and eukaryotes share a common fatty acid biosynthesis...
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Lipid Catabolism01:25

Lipid Catabolism

815
Triglycerides serve as crucial long-term energy storage molecules in microorganisms, providing a dense source of metabolic energy. Their breakdown is mediated by lipases, which hydrolyze triglycerides into glycerol and free fatty acids. Each of these components follows distinct metabolic pathways, ultimately contributing to ATP synthesis and cellular energy homeostasis.Glycerol MetabolismGlycerol, released from triglyceride hydrolysis, is phosphorylated by glycerol kinase to form...
815
Overview of Fatty Acid Metabolism01:28

Overview of Fatty Acid Metabolism

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Lipids also are sources of energy that power cellular processes. Like carbohydrates, lipids are composed of carbon, hydrogen, and oxygen, but these atoms are arranged differently. Most lipids are nonpolar and hydrophobic. Major types include fats and oils, waxes, phospholipids, and steroids.
Fatty acids are catabolized in a process called beta-oxidation, which takes place in the matrix of the mitochondria and converts their fatty acid chains into two-carbon units of acetyl groups. The acetyl...
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Overview of Algae01:28

Overview of Algae

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The kingdom Archaeplastida encompasses red and green algae, along with land plants. Unlike other protists with chloroplasts that arose through secondary endosymbiosis, only red and green algae originated from primary endosymbiotic events. This diverse group of eukaryotic organisms contains chlorophyll and performs oxygenic photosynthesis.Algae exist in various forms, from large brown kelp in coastal waters to green scum in puddles and stains on rocks or soil. Some species are responsible for...
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Amino Acid Biosynthetic Pathways01:29

Amino Acid Biosynthetic Pathways

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Amino acid biosynthesis is essential for cell growth, protein synthesis, and metabolic regulation. Cells generate essential and non-essential amino acids from metabolic intermediates to sustain vital biological functions. These intermediates originate from key metabolic pathways: glycolysis, the tricarboxylic acid (TCA) cycle, and the pentose phosphate pathway. Important precursors include α-ketoglutarate, pyruvate, oxaloacetate, phosphoenolpyruvate, and erythrose-4-phosphate, which...
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Analysis of Fatty Acid Content and Composition in Microalgae
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微細藻類における不飽和脂肪酸合成の研究進展

Xiaotong Ren1, Mengting Wang1, Yongzhong Lu2

  • 1Biology Department, College of Bioengineering, Qingdao University of Science and Technology, Qingdao, 266000, China.

Biotechnology letters
|December 21, 2025
PubMed
まとめ

微細藻類は、心血管系の健康に有益な多価不飽和脂肪酸（PUFA）の豊富な供給源である。本レビューでは、微細藻類のPUFA生産、影響因子、および代謝工学などの強化戦略について概説する。

キーワード:
応用脂肪酸不飽和化酵素遺伝子工学微細藻類多価不飽和脂肪酸

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Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids
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Experimental Protocol for Biodiesel Production with Isolation of Alkenones as Coproducts from Commercial Isochrysis Algal Biomass
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Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids
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Experimental Protocol for Biodiesel Production with Isolation of Alkenones as Coproducts from Commercial Isochrysis Algal Biomass
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科学分野:

  • バイオテクノロジー
  • 海洋生物学
  • 栄養科学

背景:

  • 多価不飽和脂肪酸（PUFA）は、特に心血管保護において、人間の健康に不可欠である。
  • 微細藻類は、PUFAの持続可能で効率的な供給源としてますます認識されている。
  • 微細藻類の培養は、ストレス下での急速な成長とPUFA蓄積などの利点を提供する。

研究 の 目的:

  • 微細藻類由来多価不飽和脂肪酸（PUFA）に関する最近の進歩をレビューする。
  • 様々な微細藻類種にわたるPUFA含有量を分析する。
  • PUFA合成の環境的影響と生化学的経路を検討する。

主な方法:

  • 微細藻類PUFAに関する現在の研究の文献レビュー。
  • PUFA合成および蓄積に影響を与える要因の分析。
  • 生産増強のための代謝工学および遺伝子編集戦略の検討。

主要な成果:

  • 異なる微細藻類種間でPUFA含有量に大きなばらつきが見られる。
  • 光、温度、栄養素などの環境要因は、PUFA合成に決定的な影響を与える。
  • 代謝工学と遺伝子編集は、微細藻類のPUFA収量を増強する上で有望な手法である。

結論:

  • 微細藻類は、健康に有益なPUFAを生産するための実行可能で持続可能な供給源を表す。
  • 培養条件の最適化と高度な遺伝子技術の採用により、PUFA生産を増強できる。
  • 大規模な微細藻類PUFA培養における現在の課題を克服するためには、さらなる研究が必要である。