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. 1966 Dec;41(10):1662–1666. doi: 10.1104/pp.41.10.1662

Salt Hardiness and Dye Reduction by Potato Tissue and Mitochondrial Fractions as Influenced by Previous Storage of the Tubers

C C Craft 1
PMCID: PMC550590  PMID: 16656455

Abstract

Oxygen uptake and tetrazolium reduction occurred at higher rates in discs from potato tubers (Solanum tuberosum L.) stored at 0° than in discs from tubers stored at 12.8°. Tetrazolium reduction was at a higher rate in mitochondrial fractions from tubers stored at 0° than in mitochondrial fractions from tubers stored at 12.8°. These physiological activities were more resistant to hypertonic KCl treatments in tissue and mitochondrial fractions from tubers stored at 0° than in tissue and mitochondrial fractions from tubers stored at 12.8°. Inhibition of O2 uptake and tetrazolium reduction progressively increased with increasing concentrations of KCl for tissue and mitochondrial fractions from tubers stored at 0 and 12.8°, but inhibition was more severe and occurred at lower concentrations of KCl for the material from tubers stored at 12.8°. Tissue from tubers stored at 0° was at the same time more sensitive to hypotonic solutions and more resistant to hypertonic solutions than corresponding tissue from tubers stored at 12.8°. Adaptive changes brought on in the tubers by the stress of cold storage were demonstrated in the discs and mitochondrial fractions prepared from cold-stored tubers.

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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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