Yeast Mitochondria
Yeast Mitochondria - Related Videos
10:39
Purification of Mitochondria from Yeast Cells
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Cited by 85 •
2009
We describe a rapid and effective method for purification of mitochondria from the yeast Saccharomyces cerevisiae. This method enables the high-yield isolation of pure mitochondria that are essentially free of contamination by other organelles and retain their structural and functional integrity after their purification.
14:44
Isolation of mRNAs Associated with Yeast Mitochondria to Study Mechanisms of Localized Translation
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Cited by 6 •
2014
Many mRNAs encoding mitochondrial proteins are associated with the mitochondria outer membrane. We describe a subcellular fractionation procedure aimed at isolation of yeast mitochondria with its associated mRNAs and ribosomes. This protocol can be applied to cells grown under diverse conditions in order to reveal mechanisms of mRNA localization and localized translation near the mitochondria.
13:42
Multi-parameter Measurement of the Permeability Transition Pore Opening in Isolated Mouse Heart Mitochondria
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Cited by 19 •
2012
A spectrofluorometric protocol for the measurement of the mitochondrial permeability transition pore opening in isolated mouse heart mitochondria is presented here. The assay involves the simultaneous measurement of mitochondria Ca2+ handling, mitochondrial membrane potential and mitochondrial volume. The procedure for obtaining high-quality and functional heart mitochondria is also described.
08:30
Yeast Maintenance
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2023
Research performed in the yeast Saccharomyces cerevisiae has significantly improved our understanding of important cellular phenomona such as regulation of the cell cycle, aging, and cell death. The many benefits of working with S. cerevisiae include the facts that they are inexpensive to grow in the lab and that many ready-to-use strains are now commercially available. Nevertheless, proper maintenance of this organism is critical for successful experiments. This video will provide an overview...
07:48
Yeast Reproduction
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2023
Saccharomyces cerevisiae is a species of yeast that is an extremely valuable model organism. Importantly, S. cerevisiae is a unicellular eukaryote that undergoes many of the same biological processes as humans. This video provides an introduction to the yeast cell cycle, and explains how S. cerevisiae reproduces both asexually and sexually Yeast reproduce asexually through a process known as budding. In contrast, yeast sometimes participate in sexual reproduction, which is important because...
FAQs
The proton gradient serves as the intermediate link between respiratory-complex activity and ATP production. Respiratory complexes create the gradient, and ATP synthase uses its stored energy to produce ATP. In yeast mitochondria, studying this connection helps researchers relate changes in electron-transfer activity to cellular energy production and broader metabolic regulation.
Fusion and fission are regulated changes in mitochondrial organization rather than separate energy-producing pathways. Their inclusion in studies of yeast mitochondria highlights that organelles must be dynamically maintained while metabolism proceeds. Researchers can therefore examine how mitochondrial structure is coordinated with organelle quality and cellular responses to stress.
Mitochondrial DNA adds a genetic dimension to studies of the organelle. In yeast, researchers can consider this DNA alongside ATP production, respiratory activity, and structural dynamics such as fusion and fission. Because many mitochondrial pathways are conserved, this combination supports broader investigation of eukaryotic cell biology and organelle function.
Yeast mitochondria provide an accessible experimental system for examining eukaryotic processes. Their value is strengthened by conservation of many mitochondrial pathways, allowing findings from fungal cells to inform questions about cellular energy regulation and organelle maintenance. This makes the model useful for connecting basic biology with disease and aging research.
Studies of yeast mitochondria can address how cells regulate energy, maintain organelle quality, and respond to stress, while also providing a platform for examining aging, mitochondrial disorders, and drug effects. These applications extend beyond measuring ATP by placing metabolic activity, organelle maintenance, and external influences within one experimentally accessible biological system.
By examining yeast mitochondria in relation to drug effects or cellular stress, researchers can connect changes in energy regulation with organelle quality and regulated fusion or fission. The model helps organize these observations within a conserved eukaryotic framework, clarifying whether a perturbation affects metabolism, mitochondrial maintenance, or both.