21199019
not annotated - annotated - LINNAEUS only
Proteomics of cryoprotective dehydration in Megaphorura arctica Tullberg 1876 (Onychiuridae: Collembola).
The Arctic springtail, Megaphorura arctica Tullberg 1876 (Onychiuridae: Collembola), is one of the few organisms known to survive the extreme stresses of its environment by using cryoprotective dehydration. We have undertaken a proteomics study comparing M. arctica, acclimated at -2^0C, the temperature known to induce the production of the anhydroprotectant trehalose in this species, and -6^0C, the temperature at which trehalose expression plateaus, against control animals acclimated at +5^0C. Using difference gel electrophoresis, and liquid chromatography tandem mass spectrometry, we identified three categories of differentially expressed proteins with specific functions, up-regulated in both the -2^0C and -6^0C animals, that were involved in metabolism, membrane transport and protein folding. Proteins involved in cytoskeleton organisation were only up-regulated in the -6^0C animals.
Ann file
T1 Species 44 63 Megaphorura arctica
N1 Reference T1 Taxonomy:1071257
T2 Species 112 129 Arctic springtail
N2 Reference T2 Taxonomy:1071257
T3 Species 131 150 Megaphorura arctica
N3 Reference T3 Taxonomy:1071257
T4 Species 363 373 M. arctica
N4 Reference T4 Taxonomy:1071257