title: Decapitation Reduces the Metabolism of Gibberellin A20 to A1 in Pisum sativum L., Decreasing the Le/le Difference.
abstract: 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.
authors.affiliation: Department of Plant Science, University of Tasmania, Hobart, Tasmania 7001, Australia (L.J.S., M.J.M., J.J.R., J.B.R.).
authors.forename: L. J.
authors.initials: LJ
authors.lastname: Sherriff
authors.forename: M. J.
authors.initials: MJ
authors.lastname: McKay
authors.forename: J. J.
authors.initials: JJ
authors.lastname: Ross
authors.forename: J. B.
authors.initials: JB
authors.lastname: Reid
authors.forename: C. L.
authors.initials: CL
authors.lastname: Willis