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Effects of ACh on the amount of protein in roots (main + lateral roots) of radish seedlings. The seedlings were cultured in the presence and absence of ACh (1 nM) for 5 d at 25°C in the dark. Vertical bars represent the means ± SE of results from triplicate experiments. The asterisk indicates a significant difference between in the absence and presence of ACh at p < 0.01 by the t-test (n = 3).
