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. 1989 Jan;89(1):1–4. doi: 10.1104/pp.89.1.1

Rapid Induction of Na+/H+ Exchange Activity in Barley Root Tonoplast 1

Joan Garbarino 1, Frances M DuPont 1
PMCID: PMC1055788  PMID: 16666496

Abstract

Na+/H+ exchange activity in barley (Hordeum vulgare cv CM-72) root tonoplast was induced by Na+ even in the presence of inhibitors of protein synthesis. Induction occurred with a half-time of only 15 minutes. When salt-treated roots were transferred to a nutrient solution containing no Na+, the activity disappeared with a similar time course. The data suggest that Na+/H+ exchange was due to activation of an existing protein rather than to de novo protein synthesis.

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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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