Hormonal Relations in the Phototropic Response IV. Light-Induced Changes of Endogenous Auxins in the Coleoptile.

@article{ShenMiller1966HormonalRI,
  title={Hormonal Relations in the Phototropic Response IV. Light-Induced Changes of Endogenous Auxins in the Coleoptile.},
  author={J. Shen-Miller and Solon A. Gordon},
  journal={Plant physiology},
  year={1966},
  volume={41 5},
  pages={831-41}
}
Beside indoleacetic acid (IAA), 3 auxins were found by chromatographic resolution of acidic fractions of Avena and Zea coleoptile tips. One of these auxins, designated P, occurred at levels of activity approaching those of IAA. The other 2 auxins, termed F and M, occurred at lower levels of activity. When the auxins of the excised coleoptile tips were isolated immediately after equilateral or unilateral irradiation with blue light at first positive energies, the ratio of IAA to the other auxins… CONTINUE READING

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