Results 261 to 270 of about 158,908 (304)
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Nature Reviews Microbiology, 2006
Many archaea are extremophiles. They thrive at high temperatures, at high pressure and in concentrated acidic environments. Nevertheless, the largest proportion and greatest diversity of archaea exist in cold environments. Most of the Earth's biosphere is cold, and archaea represent a significant fraction of the biomass.
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Many archaea are extremophiles. They thrive at high temperatures, at high pressure and in concentrated acidic environments. Nevertheless, the largest proportion and greatest diversity of archaea exist in cold environments. Most of the Earth's biosphere is cold, and archaea represent a significant fraction of the biomass.
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Cold-Stable and Cold-Adapted Microtubules
1995Most mammalian microtubules disassemble at low temperature, but some are cold stable. This probably has little to do with a need for cold-stable microtubules, but reflects that certain populations of microtubules must be stabilized for specific functions. There are several routes by which to achieve cold stability.
M, Wallin, E, Strömberg
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Biological Reviews, 1965
SummarySince 1953 laboratory mice have been bred continuously in an environment kept at – 3° C. Control stocks are kept at 21° C. All mice have cotton wool bedding. The effects of the cold environment are reviewed, and related to observations on other species exposed to cold.Physiological adaptationThe principal physiological adaptation, of a small ...
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SummarySince 1953 laboratory mice have been bred continuously in an environment kept at – 3° C. Control stocks are kept at 21° C. All mice have cotton wool bedding. The effects of the cold environment are reviewed, and related to observations on other species exposed to cold.Physiological adaptationThe principal physiological adaptation, of a small ...
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Trends in Biotechnology, 1997
It is an article of faith among biochemists and molecular biologists that precious enzymes must be stored on ice. The usual reason given is that, at temperatures around freezing, enzyme activity is minimized and protein stability maximized. There is considerable evidence supporting this, but is it true for all enzymes? What about enzymes from organisms
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It is an article of faith among biochemists and molecular biologists that precious enzymes must be stored on ice. The usual reason given is that, at temperatures around freezing, enzyme activity is minimized and protein stability maximized. There is considerable evidence supporting this, but is it true for all enzymes? What about enzymes from organisms
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Science Signaling, 2012
Octopus potassium channels function efficiently at different temperatures due to RNA editing and not genetic differences.
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Octopus potassium channels function efficiently at different temperatures due to RNA editing and not genetic differences.
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Cold-adaptation of human rotavirus
Virus Research, 1987A human rotavirus strain was cold-adapted for possible future use as a live vaccine. The original strain was isolated in 1980 in primary cynomolgus monkey kidney cells and has a serotype I and subgroup II antigenicity. The virus was serially passaged in African green monkey kidney cells; it was cultivated at 37 degrees C at the first stage of passages,
S, Matsuno +6 more
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The Neanderthal face is not cold adapted
Journal of Human Evolution, 2011Many morphological features of the Pleistocene fossil hominin Homo neanderthalensis, including the reputed large size of its paranasal sinuses, have been interpreted as adaptations to extreme cold, as some Neanderthals lived in Europe during glacial periods.
Todd C, Rae +2 more
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Cold-adapted influenza vaccines
Current Opinion in Pediatrics, 2002Because of the health impact of complicated disease from influenza in children, the role played by children in spreading influenza, and the limitations of inactivated influenza vaccine in this population, there has been ongoing effort to identify a more effective and acceptable vaccine.
John, Bradshaw, Peter F, Wright
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Importance of noradrenaline in cold adaptation
American Journal of Physiology-Legacy Content, 1964Noradrenaline (300 µg/kg) was injected daily for 45 days in a group of 15 rats. At the end of this period O2 consumption and rectal temperature responses to noradrenaline (200 µg/kg) were measured at 30 C in these animals as well as in cold-acclimated and control groups.
J, LEBLANC, M, POULIOT
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Cold adaptation in marine organisms
Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1990Abstract Animals from polar seas exhibit numerous so called resistance adaptations that serve to maintain homeostasis at low temperature and prevent lethal freezing injury. Specialization to temperatures at or below 0 °C is associated with an inability to survive at temperatures above 3-8 °C.
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