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Moore AL, Wilson SB. An estimation of the proton conductance of the inner membrane of turnip (Brassica napus L.) mitochondria. Planta. 1978;141(3):297-302doi: 10.1007/BF00388347.
Moore, A. L., & Wilson, S. B. (1978). An estimation of the proton conductance of the inner membrane of turnip (Brassica napus L.) mitochondria. Planta, 141(3), 297-302. https://doi.org/10.1007/BF00388347
Moore, A L, and Wilson, S B. "An estimation of the proton conductance of the inner membrane of turnip (Brassica napus L.) mitochondria." Planta vol. 141,3 (1978): 297-302. doi: https://doi.org/10.1007/BF00388347
Moore AL, Wilson SB. An estimation of the proton conductance of the inner membrane of turnip (Brassica napus L.) mitochondria. Planta. 1978 Jan;141(3):297-302. doi: 10.1007/BF00388347. PMID: 24414876.
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Planta. 1978 Jan;141(3):297-302. doi: 10.1007/BF00388347.

An estimation of the proton conductance of the inner membrane of turnip (Brassica napus L.) mitochondria.

Planta

A L Moore, S B Wilson

Affiliations

  1. Department of Plant Science, King's College, University of London, 68 Half Moon Lane, SE24 9JF, London, UK.

PMID: 24414876 DOI: 10.1007/BF00388347

Abstract

The permeability of the inner membrane of turnip mitochondria to H(+) and OH(-) ions has been investigated using an acid pulse technique. The rate of decay of a H(+) pulse across the inner membrane is exponential having first-order kinetics and gives t 1/2 values of approx 54 s at neutral pH and at 25° C. Valinomycin or 1799 alone have little effect on t 1/2 values, whereas in combination, values of <15 s are observed. Nigericin produces a similar effect. The effective proton conductance of the inner membrane near pH 7 at 25° C is 0.27 nmol H(+) min(-1) mg protein(-1) mV(-1). The results suggest that at neutral pH, the inner membrane of plant mitochondria is relatively impermeable to H(+) and OH(-) ions.

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