Table I. Cross-correlation analysis between growth rate and maximal PI fluorescence was performed for 10 Arabidopsis root hairs and pollen tubes

The data show that maximal PI fluorescence leads growth by 112.3° ± 3.9°.

Root HairPollen
Growth RatePeriodOffsetOffsetGrowth RatePeriodOffsetOffset
nm s−1ss°nm s−1ss°
19.572.0−18.8−94.04338−5.8−55.5
16.887.2−24.7−102.05723−1.9−30.3
19.3110.8−40.8−132.66323−1.5−23.7
26.391.6−26.1−102.66524.2−6.4−66.9
27.289.4−29.5−118.83042−6.8−58.8
20.7107.8−32.1−107.2
26.386.8−26.1−108.3
26.082.4−25.1−109.7
23.993.6−31.1−119.6
16.8103.8−37.0−128.3
Mean22.392.5−29.1−112.351.531.7−4.5−47.0
se (±)1.33.82.03.963.91.18.5