FL accumulation in Malpighian tubules of Drosophila, and its inhibition by several potential substrates. FL accumulation in Malpighian tubules of Drosophila,

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FL accumulation in Malpighian tubules of Drosophila, and its inhibition by several potential substrates. FL accumulation in Malpighian tubules of Drosophila, and its inhibition by several potential substrates. N=3 tubules for each. PBD, 3-phenobenzoic acid (1 mmol l–1); PAH, p-aminohippuyric acid (3 mmol l–1); PBA, probenecid (0.5 mmol l–1). *Change in uptake rate (second measurement period relative to first measurement period) in presence of inhibitor significantly different from uptake rate in absence of inhibitor; P<0.05, paired t-test. Douglas S. G. Neufeld et al. J Exp Biol 2005;208:2227-2236 © The Company of Biologists Limited 2005