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Drought is a major constraint for the production of common bean (Phaseolus vulgaris L.). To identify molecular responses to water deficit, we performed a differential display RT-PCR (DDRT) analysis using roots of bean plants grown aeroponically and submitted to dehydration. This allowed us to visualise 1200 DDRT bands, 8.7% of which showed a clear regulation by dehydration, and to clone 42 cDNAs,...
A cDNA coding for a putative organic cation transporter (OCT) was isolated from Phaseolus vulgaris roots by differential display RT-PCR and the corresponding full-length cDNA (named PvOCT1) was subsequently obtained by RACE-PCR. Hydropathy profiles of the deduced amino acid sequence (547 residues) predicted the existence of twelve membrane–spanning domains, which are highly conserved in the major...
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