Tryptophan Decarboxylase, Tryptamine, and Reproduction of the Whitefly | Zendy

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

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Tryptophan Decarboxylase, Tryptamine, and Reproduction of the Whitefly

Author(s) -

John C. Thomas,

Deanna G. Adams,

Craig L. Nessler,

Judith K. Brown,

Hans J. Bohnert

Publication year - 1995

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.109.2.717

Subject(s) - tryptamine , catharanthus roseus , whitefly , tryptophan , aromatic l amino acid decarboxylase , reproduction , transgene , biology , enzyme , indole test , biochemistry , botany , chemistry , gene , genetics , amino acid

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.

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