Fig. S1. ATP-dependent proton transport into isolated tonoplast vesicles monitored by quinacrine-fluorescence quenching (expressed as a percentage of the starting value) in (A)
control conditions (no added carboxylate anion), or in the presence of (B) 50 mM fumarate, (C) 50 mM malate, or (D) 50 mM citrate. Tonoplast vesicles were isolated as described in 

{'paper_id': '90359460', 'title': 'Proton and anion transport across the tonoplast vesicles in bromeliad species', 's2_url': 'https://api.semanticscholar.org/CorpusID:90359460', 'source': 'S2ORC'}