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. 1977 Nov;60(5):713–715. doi: 10.1104/pp.60.5.713

Relative Insensitivity of Mitochondria in Hardened and Nonhardened Rye Coleoptile Cells to Freezing in Situ1

Jasbir Singh a,2, A Ian de la Roche a,3, David Siminovitch a,2
PMCID: PMC542700  PMID: 16660170

Abstract

Mitochondria were isolated from excised coleoptiles of hardened and nonhardened winter rye (Secale cereale L. cv. Puma) seedlings which had been frozen extracellularly to different temperatures. No significant differences in the respiratory functions (ADP/O and respiratory control) were observed between mitochondria isolated from nonlethally and lethally frozen cells of both the hardened and nonhardened rye. These results suggest that mitochondria in situ can retain their normal function even after the cell was killed by the dehydrative stresses of extracellular freezing. Presumably, a different level of sensitivity to freezing stresses exists between mitochondrial and other membranous elements in the cell.

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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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