Open AccessTryptophan Biosynthesis in Cell Cultures of Nicotiana tabacum
Author(s) -
Deborah P. Delmer,
Stanley E. Mills
Publication year - 1968
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.43.1.81
Subject(s) - nicotiana tabacum , tryptophan , shikimic acid , biosynthesis , anthranilic acid , biochemistry , nicotiana , indole test , biology , shikimate pathway , elicitor , chemistry , solanaceae , enzyme , amino acid , gene
Some of the general features of the pathway for l-tryptophan biosynthesis in cell cultures of Nicotiana tabccum var. Wisc. 38 have been investigated. The results of both isotope competition and direct-labeling experiments show that shikimic acid, anthranilic acid, indoleglycerol phosphate, and indole can serve as precursors to l-tryptophan in these cells, indicating that, in terms of its biochemical intermediates, the pathway is similar to that described for the bacteria and fungi.
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