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. 2001 May 22;98(12):6969–6974. doi: 10.1073/pnas.101137598

Figure 2.

Figure 2

Hypocotyl phototropism in etiolated wild-type, nph1, npl1, and nph1npl1 mutant seedlings of Arabidopsis. Hypocotyl curvatures of 3.5-day-old seedlings were measured as indicated by χ° in the Inset. Curvatures were measured after a 12-hr exposure to unilateral blue light at the fluence rates indicated. Hypocotyl curvatures of 9 to 16 seedlings were measured in each case and average curvatures were calculated. Values shown represent the average of the three independent experiments. Error bars represent the mean ± the standard deviation.