TOBACCO ENZYMES FOR REGULATING CONTENT OF PLANT METABOLITES, AND USE THEREOF

摘要

The present invention provides a polynucleotide having a function of regulating a content of a plant metabolite, a polypeptide having a function of regulating a content of a plant metabolite, a vector containing the polynucleotide or a part of the polynucleotide, and a transformed plant produced by using the vector. Examples of such polynucleotides or polypeptides include polynucleotides or polypeptides with homology with quinolinate synthase or those which are predicted to be transcription factors. A method for producing the transformed plant is additionally included.

主权项

1. A method for producing a transformed Nicotiana plant whose content of alkaloids is decreased, the method comprising the steps of transforming a plant cell by introducing a gene suppression vector, and reproducing a plant body from the transformed cell, the gene suppression vector allowing production of a transformed plant whose content of alkaloids is decreased, the vector comprising a polynucleotide that is a part of a polynucleotide set forth in any one of the following (a) and (b):
(a) a polynucleotide consisting of SEQ ID NO: 7; and (b) a polynucleotide that hybridizes, under a stringent condition, to a polynucleotide consisting of the complementary sequence of the polynucleotide (a), wherein the polynucleotide that hybridizes dose not have less than 90% identity to the polynucleotide (a).