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Inheritance of the Conversion of Nicotine to Nornicotine in Varieties of Nicotiana tabacum L. and Related Amphiploids 1
Author(s) -
Mann T. J.,
Weybrew J. A.,
Matzinger D. F.,
Hall J. L.
Publication year - 1964
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1964.0011183x000400040003x
Subject(s) - crop , inheritance (genetic algorithm) , plant science , nicotiana tabacum , citation , biology , library science , botany , genetics , computer science , agronomy , gene
THE primary and predominant alkaloid in the cured leaves of most of the varieties of Nicotiana tabacum L. is nicotine. Certain "low-nicotine" varieties, however, possess the inherent capability of demethylating appreciable amounts of nicotine thereby converting it to nornicotine (5, 6, 16). In fact, in most if not all commercial tobacco types individual plants with high nornicotine content can be found (1, 2, 6, 10, 12, 13, 16, 19). The problem of alkaloid conversion is most intriguing in that it affects not only the concentrations of total alkaloid, but also of nicotine and its various decomposition products of which nornicotine is at present considered the