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Research Project:
PHYSIOLOGICAL AND GENETIC INVESTIGATION OF TUBER CALCIUM, COLD TOLERANCE AND ANTI-CANCER PROTEINS IN POTATO
Location: Vegetable Crops Research Unit
2005 Annual Report
4d.Progress report.
This report serves to document research conducted under a specific cooperative agreement between ARS and University of Wisconsin - Madison. Additional details of research can be found in the report for the parent CRIS 3655-21000-039-00D, Conservation and Utilization of Potato Genetic Resources. We quantified, for the first time, the interaction of the effect of calcium with the plant hormone gibberellin on tuberization by using our novel gibberellin-deficient mutants. Appropriate parental stocks were obtained and successful crosses made to introgress high tuber calcium (and thus better tuber quality) into breeding stocks that have commercial yield, shape and maturity. Cold tolerance: Final generation of recurrent selection for good tuber type and frost resistance was generated and prepared for testing in the US and Peruvian Andes. Anti-cancer proteins: We developed a protocol for extracting and quantifying Potato Carboxypeptidase Inhibitor (PCI) in tuber flesh, and generated a wide array of materials for future testing. These investigations join expertise in physiology and genetics to address three critical problems of the potato industry:. 1)Improved calcium for better tuber quality,. 2)Cold tolerance for maintaining productivity in the face of environmental stress, and. 3)increasing the nutritional value of potato to increase appeal to consumers.
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Last Modified: 11/07/2008
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