PMID: 12770198May 29, 2003Paper

Drought acclimation confers cold tolerance in the soil collembolan Folsomia candida

Journal of Insect Physiology
Mark BayleyM Holmstrup

Abstract

It has been noted that both summer drought and sub-zero winter temperatures induce the synthesis of sugars and polyols in invertebrate tissues. This has led several authors to suggest that many of the adaptations, previously viewed as a response to cold, might be part of a more universal desiccation tolerance mechanism. Here we show that acclimation of the soil dwelling collembolan Folsomia candida to a sublethal desiccation stress confers tolerance to cold shock and a significant increase in the molar percent of membrane fatty acids with a mid-chain double bond. These changes in membrane fatty acids are interpreted as conferring a significant reduction in the transition temperature of cell membranes, as would be expected in acclimation to cold, and these changes are therefore interpreted as contributing to the cross-tolerance. Drought acclimation was also shown to trigger the synthesis of the 70kDa family of heat-shock proteins (Hsp70). This group of heat shock proteins is implicated in the reestablishment of the normal three-dimensional structure of partially unfolded proteins and therefore are also likely to contribute to the observed cross-tolerance. This study provides evidence that the stresses exerted by desiccation and ...Continue Reading

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Citations

Jun 28, 2008·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Melody S Clark, M Roger Worland
Jan 7, 2009·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Giancarlo Lopez-MartinezDavid L Denlinger
Oct 22, 2003·Journal of Insect Physiology·Brent J SinclairSteven L Chown
Feb 5, 2004·Ecotoxicology and Environmental Safety·Heidi Sjursen, Martin Holmstrup
Jul 2, 2003·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Vladimír KostálPetr Simek
Mar 23, 2013·Integrative and Comparative Biology·Brent J SinclairHeath A MacMillan
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Dec 2, 2014·Journal of Thermal Biology·Martin Holmstrup
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Apr 9, 2009·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Stine SlotsboMartin Holmstrup
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Mar 27, 2007·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Martin HolmstrupKatarina Hedlund
Dec 1, 2015·Journal of Thermal Biology·Martin Holmstrup
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