PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21746701-5 2012 RNA interference (RNAi)-mediated knockdown of NtMYC2a and NtMYC2b expression results in significant decreases in JA-inducible NtPMT1a transcript levels, as well as reduced levels of transcripts encoding other enzymes involved in nicotine and minor alkaloid biosynthesis, including an 80-90% reduction in the level of transcripts encoding the putative nicotine synthase gene NtA662. jasmonic acid 113-115 putrescine N-methyltransferase 1 Nicotiana tabacum 126-132