An apple polyphenol oxidase cDNA is up-regulated in wounded tissues

@article{Boss1995AnAP,
  title={An apple polyphenol oxidase cDNA is up-regulated in wounded tissues},
  author={Paul K Boss and Richard C. Gardner and B J Janssen and Gavin J. S. Ross},
  journal={Plant Molecular Biology},
  year={1995},
  volume={27},
  pages={429-433}
}
A full-length cDNA clone encoding apple (Malus domesticus) polyphenol oxidase (PPO) was isolated from a fruit peel cDNA library. Southern analysis indicated that apple PPO is encoded by a divergent multigene family. By northern analysis, PPO mRNA was only detected in a fruit sample taken one week after full bloom. PPO mRNA accumulated in wounded tissues, and also in peel tissue showing the symptoms of superficial scald, a post-harvest disorder. The induction of PPO mRNA provides the first… CONTINUE READING
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