Abstract
Potato is a globally important crop. Unfortunately, potato farming is plagued with problems associated with the sprouting behavior of seed tubers. The data presented here demonstrate that using transgenic technology can influence this behavior. Transgenic tubers cytosolically expressing an inorganic pyrophosphatase gene derived from Escherichia coli under the control of the tuber-specific patatin promoter display significantly accelerated sprouting. The period of presprouting dormancy for transgenic tubers planted immediately after harvest is reduced by six to seven weeks when compared to wild-type tubers. This study demonstrates a method with which to regulate dormancy, an important aspect of potato crop management.
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Acknowledgements
The authors would like to thank Jessyca Dietze for performing the plant transformation, Helga Fleischer-Notter for technical support, and Linda Bartetzko, Britta Hausmann, Kathrin Lepa, Olaf Woiwode, and Bruno Marty for excellent greenhouse work and Dr. U. Sonnewald for the (35S)ppa1 plants. This research was supported by a grant from the Max-Planck Society to E.M.F.
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Farré, E., Bachmann, A., Willmitzer, L. et al. Acceleration of potato tuber sprouting by the expression of a bacterial pyrophosphatase. Nat Biotechnol 19, 268–272 (2001). https://doi.org/10.1038/85726
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DOI: https://doi.org/10.1038/85726
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