Functional analysis of polyphenol oxidases by antisense/sense technology.

  title={Functional analysis of polyphenol oxidases by antisense/sense technology.},
  author={Piyada Thipyapong and Michael Joseph Stout and Jutharat Attajarusit},
  volume={12 8},
Polyphenol oxidases (PPOs) catalyze the oxidation of phenolics to quinones, the secondary reactions of which lead to oxidative browning and postharvest losses of many fruits and vegetables. PPOs are ubiquitous in angiosperms, are inducible by both biotic and abiotic stresses, and have been implicated in several physiological processes including plant defense against pathogens and insects, the Mehler reaction, photoreduction of molecular oxygen by PSI, regulation of plastidic oxygen levels… CONTINUE READING