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cDNA cloning and expression of a potato (Solanum tuberosum) invertase
P E Hedley1, G C Machray, H V Davies
1Scottish Crop Research Institute, Dundee, UK.
Plant Molecular Biology
|August 1, 1993
Abstract:
A cDNA clone encoding an invertase isoenzyme has been isolated from a potato leaf cDNA library. The deduced amino acid sequence shows significant similarities to previously characterised invertases. The highest degree of overall similarity, including the signal peptide sequence, is to carrot cell wall invertase, suggesting that the potato gene encodes an apoplastic enzyme. Expression of the gene, as determined by RT-PCR, is detected in stem and leaf tissue, and at lower levels in tuber, but is absent from roots.