Gibberellin metabolism in intact plants of Raphanus sativus L
Nishijima, T. (National Research Inst. of Vegetables, Ornamental Plants and Tea, Ano, Mie (Japan)) | Koshioka, M. | Yamazaki, H. | Mander. L.N.
The metabolism of gibberelline (GAs) in intact plants of Raphanus sativus was investigated. With [2H]GA feeds, [2H]GA1 from [2H]GA4, and [2H]GA4 and [2H]GA20 from [2H]GA9 were metabolized. Since [2H]GA20 was not converted into [2H]GA1, endogenous GA1 may have been biosynthesized form GA9 via GA4 rather than from GA20. The radioactivity of [3H]GA9 and [3H]GA20 was much more strongly transported among the plant organs than that of [3H]GA1 and [3H]GA4
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