Root-to-shoot translocation of alkaloids is dominantly suppressed in Nicotiana alata.

Abstract excerpt

In tobacco (Nicotiana tabacum), nicotine and related pyridine alkaloids are produced in the root, and then transported to the aerial parts where these toxic chemicals function as part of chemical defense against insect herbivory. Although a few tobacco transporters have been recently reported to take up nicotine into the vacuole from the cytoplasm or into the cytoplasm from the apoplast, it is not known how the...

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