Multicellular Cell Differentiation Model: The control of root hair patterning in Aspergillus thaliana at University of Liverpool on FindAPhD.com

Dr N Savage , Dr A Bishopp Applications accepted all year round Self-Funded PhD Students Only

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Liverpool United Kingdom Applied Mathematics Cell Biology / Development

Institute of Integrative Biology, University of Liverpool

About the Project

Plants absorb water and nutrients from the soil through hairs that grow along their roots. As such, being able to manipulate root hair numbers may be advantageous to the development of crops more resistant to drought and nutrient deficient soils.

The outer layer of root cells, in contact with the soil, is called the epidermis. Epidermal cells have the ability to grow a hair, in fact hair growth is thought to be their default developmental pathway. It would, however, be expensive for the plant to grow a hair from every epidermal cell and mechanisms have evolved to prevent hair growth in some. These mechanisms control the pattern of hair cells and are thus heavily dependent on spatial information, obtained by cell signalling.

In Arabidopsis, a complex transcription network, controlling the exit from the hair growth fate, has been uncovered. Mathematical modelling has shown this network to be sufficient to control many aspects of Arabidopsis root hair patterning [Savage 2008, Savage 2013]. Unpublished modelling data has highlighted gaps in our knowledge of root hair patterning control.

In this project we will be asking: Is there any way (parameter sets, initial conditions) the current network can reproduce some specific biological data? And what can be added/removed from the network to make it (more) robustly reproduce the data?

The student will generate and analyse mathematical/computational multicellular models of the Arabidopsis patterning network. The student will work in close collaboration with the Bishopp Lab, who will be performing the experiments within the project. The student will use modelling to help understand biological data, uncover biological mechanism, predict the outcome of experiments and aid experimental design.

Applicants should have a degree in mathematics, physics or computer science. Students with other degrees must have strong evidence of interest and achievement in mathematics and/or computation.

Funding Notes

The project is open to both European/UK and International students. It is UNFUNDED and applicants are encouraged to contact the Principal Supervisor directly to discuss their application and the project.

Assistance will be given to those who are applying to international funding schemes.

The successful applicant will be expected to provide the funding for tuition fees and living expenses.

Details of costs can be found on the University website:
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References

A Mutual Support Mechanism through Intercellular Movement of CAPRICE and GLABRA3 Can Pattern the Arabidopsis Root Epidermis (Journal article). Savage, N. S., Walker, T., Wieckowski, Y., Schiefelbein, J., Dolan, L., & Monk, N. A. M. (2008). A Mutual Support Mechanism through Intercellular Movement of CAPRICE and GLABRA3 Can Pattern the Arabidopsis Root Epidermis. PLoS Biology, 6(9), e235. doi:10.1371/journal.pbio.0060235

Positional signaling and expression of ENHANCER OF TRY AND CPC1 are tuned to increase root hair density in response to phosphate deficiency in Arabidopsis thaliana. (Journal article). Savage, N., Yang, T. J. W., Chen, C. Y., Lin, K. -L., Monk, N. A. M., & Schmidt, W. (2013). Positional signaling and expression of ENHANCER OF TRY AND CPC1 are tuned to increase root hair density in response to phosphate deficiency in Arabidopsis thaliana.. PloS one, 8(10), e75452. doi:10.1371/journal.pone.0075452

Cellular Patterning of Arabidopsis Roots Under Low Phosphate Conditions. George Janes, Daniel von Wangenheim, Sophie Cowling, Ian Kerr, Leah Band, Andrew P. French and Anthony Bishopp. Frontiers in Plant Science

June 2018

Volume 9

Article 735

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Multicellular Cell Differentiation Model: The control of root hair patterning in Aspergillus thaliana

University of Liverpool Institute of Integrative Biology

About the Project

Funding Notes

References