Decapitation Reduces the Metabolism of Gibberellin A20 to A1 in Pisum sativum L., Decreasing the Le/le Difference.

AUTOR(ES)

Sherriff, L. J.

RESUMO

When the metabolism of [13C,3H]gibberellin (GA)20 in Pisum sativum L. was investigated using decapitated plants and stem sections, no evidence was obtained for the recently postulated inhibitor of GA20 3[beta]-hydroxylase (V.A. Smith [1992] Plant Physiol 99: 372-377). Instead, the results are consistent with the hypothesis that the mutation le reduces GA1 production by altering the structure or level of the 3[beta]-hydroxylase.

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