Publications by authors named "Bettina Greese"
Article Synopsis
- Plant development is generally consistent, but some variability exists due to noisy gene expression.
- Using Arabidopsis thaliana and a special marker, researchers found that protein expression in individual cells changes over time.
- They discovered that extrinsic noise (variation from external factors) is greater than intrinsic noise (variation within the gene), with stomata exhibiting lower extrinsic noise compared to other tissues, and demonstrated that younger plant cells show interconnected stochastic behavior in protein expression, unlike mature leaves.
While pattern formation is studied in various areas of biology, little is known about the noise leading to variations between individual realizations of the pattern. One prominent example for de novo pattern formation in plants is the patterning of trichomes on Arabidopsis leaves, which involves genetic regulation and cell-to-cell communication. These processes are potentially variable due to, e.
View Article and Find Full Text PDFTrichome patterning in Arabidopsis serves as a model system for de novo pattern formation in plants. It is thought to typify the theoretical activator-inhibitor mechanism, although this hypothesis has never been challenged by a combined experimental and theoretical approach. By integrating the key genetic and molecular data of the trichome patterning system, we developed a new theoretical model that allows the direct testing of the effect of experimental interventions and in the prediction of patterning phenotypes.
View Article and Find Full Text PDF