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. 1975 Nov;56(5):696–698. doi: 10.1104/pp.56.5.696

Stoichiometric Correlation of Malate Accumulation with Auxin-dependent K+-H+ Exchange and Growth in Avena Coleoptile Segments 1,2

Hans-Peter Haschke a, Ulrich Lüttge a
PMCID: PMC541901  PMID: 16659374

Abstract

The action of auxin in the promotion of growth has been suggested in the literature to depend on cell wall acidification. In a former investigation by the present authors the electrochemical balance in auxin-induced proton extrusion was shown to be maintained by potassium net uptake. The present paper reports data demonstrating that the elongation of Avena coleoptile segments is accompanied by an accumulation of malate, which is stoichiometrically correlated with potassium uptake. We concluded that this malate accumulation is required in a mechanism regulating intracellular pH.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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