Auxin promotes gibberellin biosynthesis in decapitated tobacco plants

@article{Wolbang2001AuxinPG,
  title={Auxin promotes gibberellin biosynthesis in decapitated tobacco plants},
  author={Carla M. Wolbang and J. Ross},
  journal={Planta},
  year={2001},
  volume={214},
  pages={153-157}
}
  • Carla M. Wolbang, J. Ross
  • Published 2001
  • Biology, Medicine
  • Planta
    • Abstract. Excision of the apical bud (decapitation) of tobacco (Nicotiana tabacum L.) plants reduced the endogenous levels of indole-3-acetic acid (IAA), gibberellin A20 (GA20), and GA1 (the bioactive GA), in internode tissue below the excision site. Application of IAA to the stump of decapitated plants dramatically increased GA20 content, to a level 3-fold greater than in intact plants. Gibberellin A1 content was also increased by IAA. Decapitation reduced the conversion of [14C]GA19 to [14C… CONTINUE READING
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