title: Endogenous gibberellins of a radiation induced single gene dwarf mutant of bean.
abstract: The distribution of endogenous gibberellins in Dwarf-1, a single gene dwarf mutant of Mexico 80-R red beans, was studied. Parallel extraction and fractionation of seeds of this mutant and those of a normal homozygous line followed by thin layer chromatography and bioassays using Rumex obtusifolius, wheat seed endosperm and dwarf bean plants revealed that a stem elongation control factor was contained in the non-acidic fraction from normal, but not from Dwarf-1, seeds. It was concluded that the single gene mutation causes a block either in gibberellin precursor formation or in production of a non-acidic fraction gibberellin-like substance.
authors.affiliation: Nuclear Energy Program, Training and Research Center, Interamerican Institute of Agricultural Sciences of the Organization of American States, Turrialba, Costa Rica.
authors.forename: V A
authors.initials: VA
authors.lastname: Proano
authors.forename: G L
authors.initials: GL
authors.lastname: Greene