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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Insects freezing into ice
 KALÁT, Matěj
The bachelor thesis deals with the topic of insects freezing into ice. The literature research includes the history of cold tolerance in insects and their strategies in defending against freezing. The second part of the thesis discusses the results of tests of aquatic arthropods freezing into ice and their survival rates after freezing.
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Low-temperature injury in insect tissues and mechanisms of its repair
 ŠTĚTINA, Tomáš
While physiological adjustments accompanying insect cold acclimation prior to cold stress have been relatively well explored, processes of recovery after cold stress received much less attention. Using a broad array of physiological, molecular biological and microscopic techniques, I aimed to capture the complexity of processes occurring after the exposure to cold stress in the larvae of two drosophilid species - freeze tolerant Chymomyza costata and freeze sensitive Drosophila melanogaster. Several lines of evidence pointed toward impaired mitochondrial functions in lethally frozen larvae. The freeze-tolerant phenotypes of C. costata retain integrity of mitochondria even after deep freezing.
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