Yeast Strain Preparation
Yeast Strain Preparation - Related Videos
13:06
The Green Monster Process for the Generation of Yeast Strains Carrying Multiple Gene Deletions
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Cited by 13 •
2012
The Green Monster method enables the rapid assembly of multiple deletions marked with a reporter gene encoding green fluorescent protein. This method is based on driving yeast strains through repeated cycles of sexual assortment of deletions and fluorescence-based enrichment of cells carrying more deletions.
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...
08:30
Yeast Transformation and Cloning
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2023
S. cerevisiae are unicellular eukaryotes that are a commonly-used model organism in biological research. In the course of their work, yeast researchers rely upon the fundamental technique of transformation (the uptake of foreign DNA by the cell) to control gene expression, induce genetic deletions, express recombinant proteins, and label subcellular structures. This video provides an overview of how and why yeast transformation is carried out in the lab. The important features of yeast...
07:55
High Throughput Yeast Strain Phenotyping with Droplet-Based RNA Sequencing
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Cited by 3 •
2020
A bottleneck in the ‘design-build-test’ cycle of microbial engineering is the speed at which we can perform functional screens of strains. We describe a high-throughput method for strain screening applied to hundreds to thousands of yeast cells per experiment that utilizes droplet-based RNA sequencing.
FAQs
Authentication establishes that the starting material corresponds to the intended yeast strain, while an isolated colony can provide a defined source for subsequent growth. This matters because strain identity, genetic background, and phenotypic characteristics influence experimental behavior. Beginning with verified material therefore strengthens comparisons among cultures and helps distinguish biological effects from starting-material differences.
Nutrition, temperature, and aeration are controlled conditions that affect whether cells remain viable while the culture is expanded. Keeping these variables consistent helps preserve the strain’s expected genetic and phenotypic characteristics across preparations. The result is a more dependable culture for experiments that compare responses between samples or treatments.
Standardization creates a comparable starting point by making cultures more consistent before an experiment begins. Without that consistency, differences in cell preparation could contribute to variation in gene expression, mutant analysis, fermentation, or stress-response measurements. Reproducible starting material improves interpretation because observed outcomes are less likely to reflect unequal preparation histories.
Contamination can compromise preparation by introducing biological material that is not part of the intended strain. Careful handling is therefore important for both culture quality and experimental interpretation. In gene expression studies, mutant analysis, fermentation, or stress-response assays, contamination can increase variability and make strain-specific conclusions less reliable.
Before a biological experiment, preparation provides a consistent culture that can serve as the starting material for downstream measurements. This is particularly important when a study compares gene expression, evaluates mutants, measures fermentation, or examines stress responses. Controlling the culture’s origin and growth conditions helps link experimental findings to the intended strain.
The workflow connects practical microbiology with experimental interpretation by helping preserve genetic and phenotypic characteristics during recovery and growth. Researchers can then study strain behavior rather than uncontrolled differences introduced during preparation. This supports applications across microbiology, biotechnology, and broader biological research, where reproducible biological material is essential for comparing results.
Stress-related measurements depend on the condition of the cells entering the assay. If viability, strain characteristics, or preparation consistency differ, the measured response may reflect those differences as well as the intended stress. Controlled preparation helps provide a common baseline, making comparisons among stress-response results more meaningful.