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. 1970 Jun;45(6):787-90.
doi: 10.1104/pp.45.6.787.

Active H Efflux from Cells of Low-salt Barley Roots during Salt Accumulation

M G Pitman  1
Affiliations

Active H Efflux from Cells of Low-salt Barley Roots during Salt Accumulation

M G Pitman. Plant Physiol. 1970 Jun.

Abstract

Measurements were made of net H(+) loss from low-salt barley roots accumulating salt. Comparison of rates of loss from roots in different concentrations of KCl showed that H(+) loss increased in the same way as the Mechanism II component of salt uptake. This H(+) loss appeared to be coupled to salt uptake and was not due to increased respiration or metabolic breakdown of sugars. In view of the large negative potential of the cells (-60 millivolts), it is suggested that the H(+) loss is due to an outward proton transport process.

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References

    1. Plant Physiol. 1969 Oct;44(10):1417-27 - PubMed
    1. Plant Physiol. 1967 Dec;42(12):1731-6 - PubMed
    1. J Gen Physiol. 1966 Jan;49(3):551-63 - PubMed
    1. J Gen Physiol. 1969 Sep;54(3):397-414 - PubMed
    1. Plant Physiol. 1967 Mar;42(3):314-8 - PubMed

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