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- Locci, G., et al. Show all 5 Authors
- Plant physiology 1995 v.109 no.4 pp. 1277-1283
- Zea mays; nitrate nitrogen; ion transport; seedlings; roots; nutrient availability; adenosinetriphosphatase; enzyme activity; pH; kinetics; membrane permeability; enzyme inhibitors; immunoassays; proton pump; membrane potential; chlorides; plasma membrane
- ... Plasma membrane H+-ATPase was studied in maize (Zea mays L.) roots induced for NO3- uptake. Membrane vesicles were isolated by means of Suc density gradient from roots exposed for 24 h either to 1.5 mM NO3- or 1.5 mM SO4-. The two populations of vesicles had similar composition as shown by diagnostic inhibitors of membrane-associated ATPases. However, both ATP-dependent intravesicular H+ accumulat ...