PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21232776-0 2011 RNAi-mediated down-regulation of ornithine decarboxylase (ODC) leads to reduced nicotine and increased anatabine levels in transgenic Nicotiana tabacum L. In leaf and root tissues of Nicotiana tabacum L. (common tobacco), nicotine is by far the predominant pyridine alkaloid, with anatabine representing only a minor component of the total alkaloid fraction. Nicotine 80-88 ornithine decarboxylase Nicotiana tabacum 33-56 21232776-0 2011 RNAi-mediated down-regulation of ornithine decarboxylase (ODC) leads to reduced nicotine and increased anatabine levels in transgenic Nicotiana tabacum L. In leaf and root tissues of Nicotiana tabacum L. (common tobacco), nicotine is by far the predominant pyridine alkaloid, with anatabine representing only a minor component of the total alkaloid fraction. Nicotine 80-88 ornithine decarboxylase Nicotiana tabacum 58-61 21232776-0 2011 RNAi-mediated down-regulation of ornithine decarboxylase (ODC) leads to reduced nicotine and increased anatabine levels in transgenic Nicotiana tabacum L. In leaf and root tissues of Nicotiana tabacum L. (common tobacco), nicotine is by far the predominant pyridine alkaloid, with anatabine representing only a minor component of the total alkaloid fraction. Nicotine 222-230 ornithine decarboxylase Nicotiana tabacum 33-56 21232776-0 2011 RNAi-mediated down-regulation of ornithine decarboxylase (ODC) leads to reduced nicotine and increased anatabine levels in transgenic Nicotiana tabacum L. In leaf and root tissues of Nicotiana tabacum L. (common tobacco), nicotine is by far the predominant pyridine alkaloid, with anatabine representing only a minor component of the total alkaloid fraction. Nicotine 222-230 ornithine decarboxylase Nicotiana tabacum 58-61 21232776-1 2011 The pyrrolidine ring of nicotine is derived from the diamine putrescine, which can be synthesized either directly from ornithine via the action of ODC, or from arginine via a three enzymatic step process, initiated by ADC. Nicotine 24-32 ornithine decarboxylase Nicotiana tabacum 147-150 21232776-4 2011 We observed a marked effect upon the alkaloid profile of transgenic tissues, with ODC transcript down-regulation leading to reduced nicotine and increased anatabine levels in both cultured hairy roots and intact greenhouse-grown plants. Nicotine 132-140 ornithine decarboxylase Nicotiana tabacum 82-85 21232776-6 2011 We conclude that the ODC mediated route to putrescine plays an important role in determining the normal nicotine:anatabine profile in N. tabacum and is essential in allowing N. tabacum to increase nicotine levels in response to wound-associated stress. Nicotine 104-112 ornithine decarboxylase Nicotiana tabacum 21-24 21232776-6 2011 We conclude that the ODC mediated route to putrescine plays an important role in determining the normal nicotine:anatabine profile in N. tabacum and is essential in allowing N. tabacum to increase nicotine levels in response to wound-associated stress. Nicotine 197-205 ornithine decarboxylase Nicotiana tabacum 21-24