dwarf and delayed-flowering 1, a novel Arabidopsis mutant deficient in gibberellin biosynthesis because of overexpression of a putative AP2 transcription factor.

@article{Magome2004dwarfAD,
  title={dwarf and delayed-flowering 1, a novel Arabidopsis mutant deficient in gibberellin biosynthesis because of overexpression of a putative AP2 transcription factor.},
  author={Hiroshi Magome and Shinjiro Yamaguchi and Atsushi Hanada and Yuji Kamiya and Kenji Oda},
  journal={The Plant journal : for cell and molecular biology},
  year={2004},
  volume={37 5},
  pages={
          720-9
        }
}
A novel gibberellin (GA)-deficient mutant designated dwarf and delayed-flowering 1 (ddf1) was isolated from a library of activation-tagged Arabidopsis. This mutant showed dwarfism and late-flowering, but the phenotype was rescued by exogenous GA3 like known mutants defective in GA biosynthesis. The contents of bioactive GA4 and GA1 were in fact decreased in ddf1 at least partially through the repression of biosynthetic steps catalyzed by GA 20-oxidase (GA20ox). Genetic and molecular analyses… CONTINUE READING

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