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Table 2 Pollen tube turning responses.

From: Mechanistic insights from a quantitative analysis of pollen tube guidance

  Distance (μm) Response ΔResponse Pearson r p-value (%)  
0 hours 0-50 0.236 0.031 0.28 2.49
  50-100 0.279 0.018 0.37 3.5 × 10-3 ••••
  100-150 0.322 0.0231 0.6 1.0 × 10-5 ••••
  150-200 0.155 0.024 0.22 6.74  
2 hours 0-50 0.488 0.04 0.48 0.17 ••
  50-100 0.296 0.025 0.55 1.1 × 10-3 ••••
  100-150 0.214 0.032 0.35 1.06
  150-200 0.097 0.026 0.29 2.52
4 hours 0-50 0.716 0.058 0.65 0.01 •••
  50-100 0.42 0.025 0.56 3.3 × 10-4 ••••
  100-150 0.376 0.028 0.55 2.1 × 10-3 ••••
  150-200 0.251 0.035 0.46 0.21 ••
heat-treated 0-50 -0.071 0.036 -0.091 54.97  
  50-100 -0.064 0.017 -0.08 32.52  
  100-150 0.051 0.015 0.112 9.16  
  150-200 -5.7 × 10-3 0.015 0.027 68.39  
  1. Responses reported are the unitless slope A of the regression line between θ tip and sin θ mp . The column ΔResponse is the standard error of this slope. The significance levels reported are for the Pearson r values: p < 5% (•), p < 1% (••), p < 0.1% (•••), p < 0.01% (••••).