Thermostability of some mitochondrial enzymes of lower vertebrates. I. General survey.

@article{Smith1973ThermostabilityOS,
  title={Thermostability of some mitochondrial enzymes of lower vertebrates. I. General survey.},
  author={Carole L. Smith},
  journal={Comparative biochemistry and physiology. B, Comparative biochemistry},
  year={1973},
  volume={44 3},
  pages={
          779-88
        }
}
  • C. Smith
  • Published 15 March 1973
  • Biology, Medicine
  • Comparative biochemistry and physiology. B, Comparative biochemistry
Abstract 1. 1. Specific activities and resistance to thermal inactivation of the succinoxidase and monoamine oxidase systems have been measured in liver mitochondria from a representative series of vertebrate animals. 2. 2. In all the reptilian, avian and mammalian species investigated neither enzyme system was inhibited by incubating the mitochondria at 37°C for 30 min prior to assay. 3. 3. In the fish and amphibian species a wide range of thermostability was found which appeared to be… Expand
13 Citations
Thermostability of some mitochondrial enzymes of lower vertebrates. II. Fresh-water teleosts.
  • C. Smith
  • Biology, Medicine
  • Comparative biochemistry and physiology. B, Comparative biochemistry
  • 1973
TLDR
Overall thermostability of these respiratory enzyme systems is not obviously correlated with the phylogenetic history of the species but does in most cases correspond to the thermal environment to which the species is adapted. Expand
The temperature dependence of oxidative phosphorylation and of the activity of various enzyme systems in liver mitochondria from cold- and warm-blooded animals.
  • C. Smith
  • Biology, Medicine
  • Comparative biochemistry and physiology. B, Comparative biochemistry
  • 1973
TLDR
The temperature dependence over the range 5–25°C of State III respiration as well as succinoxidase and NADH oxidase activities is significantly less for fish than for mammalian or avian mitochondria, and the possible adaptive value is discussed. Expand
Mitochondrial enzymes of tropical fish: a comparison with fish from cold-waters.
  • D. Irving, K. Watson
  • Biology, Medicine
  • Comparative biochemistry and physiology. B, Comparative biochemistry
  • 1976
TLDR
The fatty acid composition of the tropical fish mitochondrial membranes was found to be more saturated than in previously reported cold-water fish motochondrial membranes and the heart mitochondrial enzymes were also more temperature-stable than the corresponding enzymes of the liver. Expand
The effect of detergents on some enzyme systems in liver mitochondria from ecto- and endo-thermic animals.
TLDR
It is concluded that differences in the membranes of ecto- and endo-thermic mitochondria do not affect the sensitivity of these enzymes to detergent and there were no significant differences for the other enzyme systems with either detergent. Expand
Comparative studies on the thermal properties of a trypsin-like protease intwo hermit crabs
  • B. Dittrich
  • Biology
  • Helgoländer Meeresuntersuchungen
  • 2006
The thermal characteristics of a trypsin-like protease were surveyed comparatively in two hermit crabs,Pagurus bernhardus (Linné) 1758 from the German Bight, andClibanarius striolatus Dana 1852 fromExpand
Further characterization of two mitochondrial populations in tuna heart ventricle.
TLDR
Results, which represent an example of metabolic zonation at the organelle level, are discussed in relation to the homeostatic cooperation of the two myocardial regions of tuna heart. Expand
Heat Shock Proteins in the "Hot" Mitochondrion: Identity and Putative Roles.
TLDR
It is proposed that mitochondrial heat shock proteins (particularly Hsp70), in addition to their roles in protein transport and folding, protect mitochondrial proteins and DNA from thermal and ROS damage. Expand
Effects of pH and Temperature on the Kinetics of Pyruvate Oxidation by Muscle Mitochondria from Rainbow Trout (Oncorhynchus mykiss)
We measured the kinetics of pyruvate oxidation by mitochondria of rainbow trout (Oncorhynchus mykiss) red muscle and the kinetics of pyruvate decarboxylation by partially purified pyruvateExpand
The effect of season and experimental temperature on the rates of oxidative phosphorylation of liver and muscle mitochondria from the tench. Tinca tinca.
  • V. Pye, W. Wieser, M. Zech
  • Biology, Medicine
  • Comparative biochemistry and physiology. B, Comparative biochemistry
  • 1976
TLDR
At low experimental temperatures the Km-values of succinate driven mitochondrial respiration are much higher in the muscles than in the liver, particularly in winter fish, which explains the very low respiratory rate of muscle mitochondria in winter when the substrate is succinate. Expand
Non-Cold-Adapted Metabolism in the Decapod Chorismus antarcticus and Other Sub-Antarctic Marine Crustaceans
TLDR
A study on the metabolic rate of the Antarctic decapod Chorismus antarcticus indicated the absence of “cold-adapted” metabolism, which supports the observation that metabolism at low ambient temperatures is commonly at a level expected empirically from the temperature dependent behaviour of physico-chemical reaction rates. Expand
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Thermostability of some mitochondrial enzymes of lower vertebrates. II. Fresh-water teleosts.
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  • Biology, Medicine
  • Comparative biochemistry and physiology. B, Comparative biochemistry
  • 1973
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Overall thermostability of these respiratory enzyme systems is not obviously correlated with the phylogenetic history of the species but does in most cases correspond to the thermal environment to which the species is adapted. Expand
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Experimental evidence is presented which suggests that EDTA may have a direct action on succinic dehydrogenase which leads to this enzyme becoming resistant to thermal inactivation at the reaction temperatures employed. Expand
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Cholesterol-enriched mitochondria are much more resistant to large amplitude swelling than control mitochondria, apparently because of the increased strength of the outer membrane. Expand
Comparison of the Mitochondria of the Small Intestine of Vertebrates
TLDR
The mitochondria in the intestinal cells of these species showed no major differences in structure from the other mitochondria that have already been described1,2, but all except those from the rat exhibited considerable succinoxidase activity as measured manometrically. Expand
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The experimental results given in the present paper lead to the conclusion that the nicotinamide nucleotide coenzyme reduced by the isocitrate dehydrogenase is not available to the respiratory chain and that, despite the presence ofNAD and an active nicotinamia nucleotide transhydrogenase, the reduced nucleotide must react with oxaloacetate, a process catalysed by malate dehydrogensase. Expand
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