American Potato Journal

, 46:185 | Cite as

Gibberellins, inhibitors, and tuber formation in the potato, Solanum tuberosum

  • O. E. Smith
  • Lawrence Rappaport


Endogenous gibberellins were measured in extracts of ‘Red Pontiac’ potato tubers sampled during tuber ontogeny. Stolons contained high levels of activity and developing tubers low activity, as indicated by elongation in the dwarf pea and maize mutant bioassays. However, dilution of the extracts of young tubers revealed that low gibberellin-like activity may have been due to the presence of an inhibitor. Based on co-chromatography this inhibitor was found not to be abscisic acid nor did abscisic acid induce tuber formation after treatment of the intact plant, treatment of the developing stolons or after addition to potato stolons grown in tissue culture medium.


Gibberellin Potato Tuber Gibberellic Acid Tuber Formation Tuber Initiation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Giberelinas endógenas fueron medidas en extractos de tubérculos de la papa “Red Pontiac” durante la formación de los tubérculos. Los estolones contenían altos niveles de actividad y los tubérculos en desarrollo mostraban una actividad baja como fué indicado por un bioensayo por la elongación del frijol enano y de un mutante del maiz. Sinembargo, una diluición de los extractos de tubérculos jóvenes indicó que la baja actividad puede haber sido debida a la presencia de un inhibidor. Por la co-cromatografía se encontró que este inhibidor no era el ácido abscísico ni tampoco indujo el ácido abscísico la formación de tubérculos después del tratamiento de plantas intactas, tratamiento de estolones en desarrollo o después de añadirlo a los estolones de papa mantenidos en una cultura de tejidos.

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Copyright information

© Springer 1969

Authors and Affiliations

  • O. E. Smith
    • 1
  • Lawrence Rappaport
    • 2
  1. 1.Department of Vegetable CropsUniversity of CaliforniaRiverside
  2. 2.Department of Vegetable CropsUniversity of CaliforniaDavis

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