Fig. 7.

Uptake of radioactively labelled malate by Xenopus oocytes. Oocytes injected with HvALMT1 cRNA or water as a control were incubated in [¹⁴C]malate at external pH 7.5 or pH 4.5 for 30 min and then digested in acid to determine the rate of malate uptake. Error bars show the SEM (n=5), and columns with different letters are significantly different (P <0.05; n=5).