The MIIS Eprints Archive

Network properties underlying seed germination control

Penfield, Steven and Fozard, John (2007) Network properties underlying seed germination control. [Study Group Report]



We sought to gain a mechanistic understanding of the control of seed dormancy and germination by hormone balance. The field has matured to a stage where most of the key genes are known, and competing hypotheses have been proposed to explain how hormone balance works in seeds. During the meeting we simplified a more complex model of seed germination (Figure 1), reducing it to a tractable network. We then showed that if considered as a set of competing protein complexes the network took on the properties of a switch. Results from two models of the reduced network, which incorporated the biological switching phenomena, were found to be in good agreement with both wild and mutant phenotypic data. Our models made the novel prediction that one complex in particular was key to promoting germination, and this prediction can now
be tested in the laboratory.

Item Type:Study Group Report
Problem Sectors:None/Other
Study Groups:Mathematics in the Plant Sciences Study Group > 1st MPSSG [Nottingham 17/12/2007 - 20/12/2007]
ID Code:197
Deposited By: Michele Taroni
Deposited On:08 Jan 2009
Last Modified:29 May 2015 19:49

Repository Staff Only: item control page