Nitric oxide metabolites in hypoxia, freezing, and hibernation of the wood frog, Rana sylvatica
نویسندگان
چکیده
منابع مشابه
Expression and Characterization of the Novel Gene fr47 during Freezing in the Wood Frog, Rana sylvatica
The wood frog, Rana sylvatica, has numerous adaptations that allow it to survive freezing of up to 65% of its total body water during the winter. Such adaptations have been found to include the expression of novel freeze responsive genes that are thought to be important for adaptation and survival. In this study, the tissue-specific stress responsive expression of one novel gene, fr47, was asse...
متن کاملIdentification and characterization of a novel freezing inducible gene, li16, in the wood frog Rana sylvatica.
The wood frog Rana sylvatica survives for weeks during winter hibernation with up to 65% body water frozen as ice. Natural freeze tolerance includes both seasonal and freeze-induced molecular adaptations that control ice formation, deal with long-term ischemia, regulate cell volume changes, and protect macromolecules. This report identifies and characterizes a novel freeze-inducible gene, li16,...
متن کاملInoculative freezing by environmental ice nuclei in the freeze-tolerant wood frog, Rana sylvatica.
Efficacy of inoculative freezing by ice nuclei in a simulated winter environment was studied in the wood frog (Rana sylvatica), a freeze-tolerant species that overwinters on the forest floor beneath organic detritus. Adult frogs were confined to plastic canisters and cooled to -2 degrees C over 24 hr with their ventral skin in contact with substrate (humic soil hydrated to 40, 10, or 5%, or soi...
متن کاملMicrogeographic countergradient variation in the wood frog, Rana sylvatica.
Prior studies have shown that macrogeographic gradients in temperature associated with latitude and altitude can lead to countergradient patterns of variation in a number of taxa: individuals from colder environments are known to grow or develop faster than their conspecifics from warmer environments when placed in a common setting. In this study, I hypothesized that countergradient variation a...
متن کاملInduction of photolyase activity in wood frog (Rana sylvatica) embryos.
Rising ultraviolet-B (UVB, 280-320 nm) radiation has been proposed as a factor which may explain nonnormal amphibian population declines. Accordingly research has been directed toward estimating the photolyase activity of several amphibian species in order to predict a species' resilience to UV damage. Unfortunately, in spite of published research which demonstrated that the activity of one of ...
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ژورنال
عنوان ژورنال: Journal of Comparative Physiology B
سال: 2018
ISSN: 0174-1578,1432-136X
DOI: 10.1007/s00360-018-1182-1