Chalcone Synthase and Flavonol Accumulation in Stigmas and Anthers of Petunia hybrida.

  title={Chalcone Synthase and Flavonol Accumulation in Stigmas and Anthers of Petunia hybrida.},
  author={P. E. Pollak and Thomas Vogt and Yin-yuan Mo and Loverine P. Taylor},
  journal={Plant physiology},
  volume={102 3},
Flavonol aglycones are required for pollen germination in petunia (Petunia hybrida L.). Mutant plants lacking chalcone synthase (CHS), which catalyzes the first committed step in flavonoid synthesis, do not accumulate flavonols and are self-sterile. The mutant pollen can be induced to germinate by supplementing it with kaempferol, a flavonol aglycone, either at the time of pollination or by addition to an in vitro germination system. Biochemical complementation occurs naturally when the mutant… CONTINUE READING
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