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Related Concept Videos

Lipid Catabolism01:25

Lipid Catabolism

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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...
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Carbohydrate Catabolism01:30

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Carbohydrate catabolism is a fundamental process in cellular metabolism that enables energy extraction from glucose through two primary pathways: cellular respiration and fermentation. Both pathways begin with glycolysis, which operates independently of oxygen availability.Glycolysis: A Shared Starting PointGlycolysis is an oxygen-independent process that breaks down glucose into two molecules of pyruvic acid. During this process, a net gain of two ATP molecules and two NADH molecules is...
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Amino Acid Catabolism01:18

Amino Acid Catabolism

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Microorganisms rely on proteins as an essential carbon and energy source, particularly in environments with limited polysaccharides or lipids. However, proteins are too large to cross the plasma membrane unaided, necessitating enzymatic degradation. Microbes secrete extracellular proteases and peptidases that hydrolyze proteins into peptides, which can then be transported across the membrane. Once inside the cell, intracellular proteases degrade these peptides into free amino acids, which...
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What are Lipids?01:38

What are Lipids?

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Overview
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What are Lipids?01:31

What are Lipids?

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Lipids function as structural components of cellular membranes, in addition to acting as energy reservoirs and signaling molecules. They are thus crucial to all living organisms.  The three biologically important classes of lipids are triglycerides, phospholipids, and steroids.
Non-Polar and Hydrophobic Characteristics of Lipids
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Types of Chemical Reactions: Anabolic and Catabolic01:19

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The first law of thermodynamics holds that energy can neither be created nor destroyed—it can only change form. An organism's essential function is to consume (ingest) energy and molecules in the foods we eat, convert some of it into fuel for movement, sustain our body functions, and build and maintain our body structures. There are two types of reactions that accomplish this: anabolism and catabolism.
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Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
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Lipid catabolism in microalgae.

Fantao Kong1, Ismael Torres Romero1, Jaruswan Warakanont1,2

  • 1Commissariat à l'Energie Atomique et aux Energies Alternatives, CNRS, Aix Marseille Université, UMR7265, Institut de Biosciences et Biotechnologies Aix Marseille, 13108, Cadarache, France.

The New Phytologist
|February 24, 2018
PubMed
Summary
This summary is machine-generated.

Microalgal lipid degradation is crucial for cell survival and growth. This review covers lipolysis, fatty acid beta-oxidation, and their biotechnological applications in microalgae.

Keywords:
acyl-CoA oxidaseautophagycell cyclefatty acid β-oxidationlipaselipid dropletperoxisomequiescence

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Microbiology

Background:

  • Lipid metabolism is vital for microalgae survival under changing environments.
  • Lipid catabolism involves lipolysis and fatty acid degradation.
  • Understanding these pathways is key for microalgal biotechnology.

Purpose of the Study:

  • To review current knowledge on microalgal lipid degradation.
  • To identify gaps in understanding lipolysis and beta-oxidation.
  • To discuss implications for biotechnology.

Main Methods:

  • Literature review of enzymes and regulatory proteins.
  • Analysis of metabolic pathways (lipolysis, beta-oxidation, glyoxylate cycle).
  • Examination of cellular processes affecting lipid turnover.

Main Results:

  • Detailed overview of enzymes in lipolysis and peroxisomal beta-oxidation.
  • Identification of knowledge gaps in microalgal lipid catabolism.
  • Discussion of acetyl-CoA metabolism and its links to other pathways.

Conclusions:

  • Lipid degradation pathways are complex and interconnected.
  • Cellular processes like autophagy influence lipid turnover.
  • Manipulating lipid catabolism offers biotechnological potential for microalgae.