Two methods of nonlinear system identification have been applied to the transient light-growth response of the fungus Phycomyces. These methods, both in the framework of the Wiener theory, use Gaussian white noise and a sum of sinusoids, respectively, as test stimuli. The resulting Wiener kernels represent the input-output relation of the system. Analyses of a family of single and double mutants that are affected in eight genes associated with the light-growth response and phototropism indicate extensive interactions among the gene products. A dynamic nonlinear model of the light-growth response has been developed for wild type mutants and applied to analyze the mutant responses.
|Original language||English (US)|
|Title of host publication||IEEE/Engineering in Medicine and Biology Society Annual Conference|
|Publisher||IEEE Computer Society|
|Number of pages||2|
|State||Published - 1987|
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