Abstract
A Papaver somniferum cell line capable of producing sanguinarine equivalent to 3% of cell dry weight was used to determine if ethylene was involved in signalling the biosynthesis of this alkaloid. A 3.3-fold increase in ethylene emanation from these cell suspension cultures was observed 7 h after elicitation with a Botrytis fungal homogenate. The rate of ethylene release then decreased to near zero after 48 h, suggesting that a pulse of ethylene production may be involved in sanguinarine production. However, sanguinarine biosynthesis was not promoted when either the ethylene precursor, 1-aminocyclopropane-1-carboxylic acid (ACC), or the ethylene releasing agent, 2-chloroethylphosphonic acid (ethephon), was added to the culture. These results strongly suggest that ethylene is not intimately involved in the production of sanguinarine from Papaver somniferum cell cultures or in the transduction of the elicitation event.
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Abbreviations
- ACC:
-
1-aminocyclopropane-1-carboxylic acid
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Communicated by F. Constabel
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Songstad, D.D., Giles, K.L., Park, J. et al. Effect of ethylene on sanguinarine production from Papaver somniferum cell cultures. Plant Cell Reports 8, 463–466 (1989). https://doi.org/10.1007/BF00269049
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DOI: https://doi.org/10.1007/BF00269049