1. Primary Active Transport Proteins.- A Plethora of Plant Plasmalemma Proton Pumps.- Studies on the Reaction Mechanism and Transport Function of P-type ATPases Associated with the Plant Plasma Membrane.- Vacuolar H+-translocating Inorganic Pyrophosphatase: Biochemistry and Molecular Biology.- Studies on the Higher Plant Calmodulin-Stimulated ATPase.- The Plasma Membrane Calcium Pump. Studies on Membrane Vesicles Isolated from Higher Plants.- 2. Secondary Ion and Metabolite Transporters.- Proton-Sugar Co-transporters in Plants.- Insights into the Structure of the Chloroplast Phosphate Translocator Protein.- Salt-Induced Changes in Ion Transport: Regulation of Primary Pumps and Secondary Transporters.- Uptake of Malate and Citrate into Plant Vacuoles.- 3. Channel Proteins.- Soybean Nodulin-26: A Channel Protein Conserved from Bacteria to Mammals.- The Application of Planar Lipid Bilayers to the Study of Plant Ion channels.- Inositol Phospholipid-Derived Signals in Plant Cells.- Putative L-type Calcium Channels in Plants: Biochemical Properties and Subcellular Localisation.- 4. Receptor Proteins.- Hormone Perception and Signal Transduction in Aleurone.- The Auxin Receptor: Structure and Distribution.- Membrane Receptors for Fusicoccin: A Molecular Study.- GTP-Binding Proteins in Higher Plant Cells.- 5. Protein Targeting and Assembly in Membranes.- Sequence Determinants for Protein Import into Chloroplasts and Thylakoid Membrane Protein Assembly.- Mechanism and Energetics of Protein Transport Across the Thylakoid Membrane.