Tryptophan decarboxylase, tryptamine, and reproduction of the whitefly

John C. Thomas, Deanna G. Adams, Craig L. Nessler, Judith K. Brown, Hans J. Bohnert

Research output: Contribution to journalArticle

39 Scopus citations

Abstract

Tryptophan decarboxylase (TDC) from Catharanthus roseus (periwinkle) converts tryptophan to the indole-alkaloid tryptamine. When the TDC gene was expressed in transgenic tobacco, the 55-kD TDC enzyme and tryptamine accumulated. Bemisia tabaci (sweetpotato whitefly) reproduction on transgenic plants decreased up to 97% relative to controls. Production of tryptamine, its derivatives, or other products resulting from TDC activity may discourage whitefly reproduction and provide a single-gene-based plant protection strategy.

Original languageEnglish (US)
Pages (from-to)717-720
Number of pages4
JournalPlant physiology
Volume109
Issue number2
DOIs
StatePublished - Oct 1995

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science

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    Thomas, J. C., Adams, D. G., Nessler, C. L., Brown, J. K., & Bohnert, H. J. (1995). Tryptophan decarboxylase, tryptamine, and reproduction of the whitefly. Plant physiology, 109(2), 717-720. https://doi.org/10.1104/pp.109.2.717