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Quantifying two-dimensional filamentous and invasive growth spatial patterns in yeast colonies.
Benjamin J Binder1, Joanna F Sundstrom2, Jennifer M Gardner2
1School of Mathematical Sciences, University of Adelaide, Adelaide, South Australia, Australia.
Plos Computational Biology
|February 27, 2015
Summary
This study analyzes spatial patterns in Saccharomyces cerevisiae yeast colony growth. Researchers developed a method to quantify non-uniform growth, revealing increasing spatial distribution changes over time.
Area of Science:
- Microbiology
- Quantitative Biology
- Biophysics
Background:
- Understanding spatial patterning in microbial colonies is crucial for fields like developmental biology and synthetic biology.
- Saccharomyces cerevisiae is a model organism widely used to study cell growth and behavior.
Purpose of the Study:
- To develop and apply a quantitative method for analyzing the spatial patterning of non-uniform growth in Saccharomyces cerevisiae colonies.
- To characterize the temporal dynamics of spatial distribution in yeast colonies.
Main Methods:
- Processing of experimental top-view images of yeast colonies to obtain spatial cell-area data.
- Development of a novel analytical method using three metrics to quantify spatial distribution.
- Quantification of colony growth in both radial and angular directions.
Main Results:
- Demonstrated increasing non-uniform growth in yeast colonies between 100-200 hours post-initiation.
- The developed method successfully quantifies spatial distribution and its changes over time.
- Identified specific radial and angular growth patterns.
Conclusions:
- The statistical framework provides a robust platform for quantitative comparison of yeast strains.
- This approach has potential applications in inferring parameters for growth models.
- The findings offer insights into the mechanisms driving non-uniform microbial colony development.
