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. 2014 Apr 14;111(17):6515–6520. doi: 10.1073/pnas.1320355111

Fig. 3.

Fig. 3.

HFR1 inhibits auxin production. (A) Hypocotyl length of seedlings grown with or without the auxin transport inhibitor NPA under low light conditions (see Materials and Methods for seedling growth conditions). Data are mean ± 2 SE, n = 23–29. (B) Relative hypocotyl elongation in low light and in low R:FR in the presence of l-kynurenine, an inhibitor of auxin production. n = 25–34, error bars = 2 SE. (C) Free auxin content in seedlings grown under low light conditions subjected to 1 h of high or low R:FR. Data are mean ± SE (n = 5). (D) Quantitative RT-PCR analysis of two genes participating in the auxin production pathway. Seedlings were collected after 4 d in constant high R:FR light followed by 3 d in low or high R:FR. Data are mean ± SE, n = 3.