Summary
The presence of three water-soluble gibberellins was confirmed in immature seeds of morning-glory (Pharbitis nil). The structure of the main component has been elucidated as 2-O-β-glucosyl-gibberellin A3. It shows marked growth-promoting activity on rice seedlings but is far less active on dwarf maize mutants d 1, d 2 and d 5.
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References
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Tamura, S., Takahashi, N., Yokota, T. et al. Isolation of water-soluble gibberellins from immature seeds of Pharbitis nil . Planta 78, 208–212 (1967). https://doi.org/10.1007/BF00406652
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DOI: https://doi.org/10.1007/BF00406652