Summary
A new potent antiauxin, α-(5,7-dichloroindole-3-)isobutyric acid has been synthesized and shown to inhibit auxin-mediated elongation ofAvena coleoptiles and to stimulate root growth of rice seedlings. Its activity is stronger than α-(p-chlorophenoxy)isobutyric acid and is comparable to that of 2,3,5-triiodobenzoic acid, which are typical antiauxins.
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Hatano, T., Kato, Y., Katayama, M. et al. A new indolic antiauxin, α-(5,7-dichloroindole-3-)isobutyric acid: its chemical synthesis and biological activity. Experientia 45, 400–402 (1989). https://doi.org/10.1007/BF01957494
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DOI: https://doi.org/10.1007/BF01957494