1957
DOI: 10.1073/pnas.43.6.464
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Molecular Basis of Biological Stability to High Temperatures

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Cited by 47 publications
(12 citation statements)
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“…There appear to be proteins or enzymes which are relatively stable at high temperatures. Koffler (8) The majority of cells which stained with the nonvital stains also exhibited plasmolysis and bleached chloroplasts. The remaining 25 % of the cells contained seemingly enlarged chloroplasts and nuclei.…”
mentioning
confidence: 97%
“…There appear to be proteins or enzymes which are relatively stable at high temperatures. Koffler (8) The majority of cells which stained with the nonvital stains also exhibited plasmolysis and bleached chloroplasts. The remaining 25 % of the cells contained seemingly enlarged chloroplasts and nuclei.…”
mentioning
confidence: 97%
“…The ability of thermophiles to grow at relatively high temperatures (about 55 to 80 C) as compared to mesophiles which grow at temperatures of about 20 to 45 C (4) has been ascribed to chemical and physical differences of their macromolecules. Evidence for this theory comes mainly from studies of proteins, especially of purified enzymes (6,19) and of bacterial flagella (14). Further evidence for uniquely heat-stable macromolecules has been reported in studies of amino acidactivating enzymes (3), a thermophilic bacteriophage (25), and a subcellular protein-synthesizing system from a thermophile (11).…”
mentioning
confidence: 99%
“…I flagelli dei termofili sono più stabili al calore di quelli dei mesofili: i primi rimangono intatti anche a temperature di 70°C, mentre i secondi sono distrutti a 50°C 27,29 . Probabilmente nei flagelli dei termofili -più resistenti all'urea e all'acetammide di quelli dei mesofilisono presenti legami idrogeno più efficienti.…”
Section: Flagelliunclassified