کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9147191 | 1165391 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Changes in membrane lipid composition following rapid cold hardening in Drosophila melanogaster
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش حشره شناسی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
RCH improved survival following cold shock at â4, â6 and â8 °C. No induction of Hsp70 was found following cold shock irrespective of the pre-treatment. In contrast, a 5 h RCH treatment was sufficient to induce small, but significant, changes in the composition of PLFAs. Here, the polyunsaturated linoleic acid, 18:2(nâ6), increased while monounsaturated (18:1) and saturated (14:0) PLFAs decreased in abundance. These changes were observed in both selection groups and caused a significant increase in the overall degree of unsaturation. This response is consistent with the membrane response typically found during cold acclimation in ectothermic animals and it is likely adaptive to maintain membrane function during cold. Cold selection resulted in PLFA changes (decrease of 18:0 and 18:1 and increase of 14:0 and 16:1), which may improve the ability to harden during RCH.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Insect Physiology - Volume 51, Issue 11, November 2005, Pages 1173-1182
Journal: Journal of Insect Physiology - Volume 51, Issue 11, November 2005, Pages 1173-1182
نویسندگان
Johannes Overgaard, Jesper G. Sørensen, Søren O. Petersen, Volker Loeschcke, Martin Holmstrup,