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Up-regulation of the Medsa;cycA2;2 gene by auxins and a polar auxin-transport inhibitor. RT-PCR analysis showing the Medsa;cycA2;2 transcription levels after spot-inoculation of nitrogen starved alfalfa plantlets in the Nod factor sensitive root zone with 1 μm NPA, 10 μm NAA, 10 μm 2,4-D, or nitrogen-free medium for 14 h. Msc27 transcript levels served as control for the amount of RNAs.
