
%0 Journal Article
%A Faull, KF 
%A Coombe, BG 
%A Paleg, LG 
%T Biosynthesis of Gibberellins in Barley and Dwarf Rice Seedlings
%J Functional Plant Biology
%D 1974/06/01
%V 1
%N 2
%P 199-210
%K 
%R https://doi.org/10.1071/PP9740199
%U https://www.publish.csiro.au/paper/PP9740199 
%X Incorporation studies with 14 CO2 suggested that 11-day-old barley seedlings biosynthesized an A1- like gibberellin de novo and that the biosynthesized gibberellin completely turned over within 12 h. Exogenous [14C]mevalonic acid, supplied in a variety of ways, was not incorporated into the gibberellins of barley seedlings. Barley seedlings, which failed to elongate in response to exogenous ent-kaurenoic acid, metabolized exogenous [17-14C]ent-kaurenoic acid to a few compounds, but not to a biologically active gibberellin. Dwarf rice seedlings (cv. Tan-ginbozu), which elongated in response to exogenous ent-kaurenoic acid, metabolized exogenous [17-14C]ent-kaurenoic acid to a number of radioactive compounds, one of which behaved like [14C]gibberellin A1 in that it showed radioactivity and biological activity at the expected retention time during gas-liquid chromatography. 
