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Table 5 Summary of systematic perturbation results

From: Analysis of a dynamic model of guard cell signaling reveals the stability of signal propagation

Light, CO2 and ABA condition Unperturbed SO level Simplified SO level Percentage of cases with unchanged SO value
0 1 2 3 5 6
Percentage of single knockouts that lead to each SO level
Dual Beam Mod. CO2 ABA OFF 5   4 %   31 % 65 %   65 %
Low CO2 6 31 %    4 %   65 % 65 %
High CO2 1 4 % 96 %      96 %
Blue Light Mod. CO2 3   35 %   65 %    65 %
Low CO2 5 31 %    4 % 65 %   65 %
High CO2 1 4 % 96 %      96 %
Red Light Mod. CO2 1 4 % 96 %      96 %
Low CO2 3 35 %    65 %    65 %
High CO2 1 4 % 96 %      96 %
Dual Beam Mod. CO2 ABA ON 0 85 %   4 % 8 % 4 %   85 %
Low CO2 3 46 %    50 %   4 % 50 %
Blue Light Mod. CO2 0 85 % 4 % 8 % 4 %    85 %
Low CO2 3 46 %    50 % 4 %   50 %
Red Light Low CO2 0 96 %    4 %    96 %
  1. The first set of columns, with the header ‘Light, CO2 and ABA condition’, indicate the input signal combinations. The abbreviation “Mod.” means moderate CO2 concentration. Note that we do not list the four input combinations (high CO2 with ABA and with any type of light, or moderate CO2 with ABA and red light) wherein all simulated stomatal opening values are zero. The 2nd column is the simulated stomatal opening (SO) level in the unperturbed system. The 3rd column set shows the percentage of single-node knockouts that yield the corresponding SO level. There is no stomatal opening level 4 in the reduced model. No entry means zero percentage. The last column is the percentage of settings where the stomatal opening remains at the same level as the unperturbed case. A complete table of perturbation results is provided in Additional file 9