Temperature-induced plasticity in membrane and storage lipid composition: Thermal reaction norms across five different temperatures.

J.A. van Dooremalen, J. Koekkoek, J. Ellers

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Temperature is a key environmental factor inducing phenotypic plasticity in a wide range of behavioral, morphological, and life history traits in ectotherms. The strength of temperature-induced responses in fitness-related traits may be determined by plasticity of the underlying physiological or biochemical traits. Lipid composition may be an important trait underlying fitness response to temperature, because it affects membrane fluidity as well as availability of stored energy reserves. Here, we investigate the effect of temperature on lipid composition of the springtail Orchesella cincta by measuring thermal reaction norms across five different temperatures after four weeks of cold or warm acclimation. Fatty acid composition in storage and membrane lipids showed a highly plastic response to temperature, but the responses of single fatty acids revealed deviations from the expectations based on HVA theory. We found an accumulation of C
Original languageEnglish
Pages (from-to)285-291
JournalJournal of Insect Physiology
Volume57
DOIs
Publication statusPublished - 2011

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