ABSTRACT
The behaviour of coloured membrane portions of "halobacteria" is studied with respect to spectral response and reversibility. The results are in good correlation with colour generating effects of pseudophototropic reactions. The disclosed and dicussed systems are in the range from purely synthetic to purely biological.
Subject(s)
Bacterial Physiological Phenomena , Halobacterium/physiology , Light , Bacteria/ultrastructure , Bacterial Proteins , Cell Membrane/drug effects , Cell Membrane/physiology , Dimethyl Sulfoxide , Dimethylformamide , Halobacterium/ultrastructure , Kinetics , Phosphates , PyridinesABSTRACT
In further research on pseudophototropic behaviour in cellular membranes of halobacteria the reversibility of vinylmethylethermaleic anhydride-copolymeres with biological liquids is tested and the basic principles of different colour generating reactions are studied.
Subject(s)
Bacterial Physiological Phenomena , Halobacterium/physiology , Polymers/metabolism , Bacteria/metabolism , Cell Membrane/metabolism , Color , Electrolytes/metabolism , Halobacterium/metabolism , Halobacterium/ultrastructure , Vinyl Compounds/metabolismABSTRACT
The phenomenon of pseudophototropy is compared with well-known theories of the origin and treatment of cancer, by means of practical medical experiments. The reaction cycles or life processes of both systems are comparable, in spite of considerable differences between them, and suggest, at least as a hypothesis, that there is a general mechanism for the formation of double-bond sequences liable to reaction.
Subject(s)
Dimethyl Sulfoxide/radiation effects , Neoplasms, Radiation-Induced/etiology , Polymers/radiation effects , Circadian Rhythm , Darkness , Hot Temperature , Light , Oxidation-Reduction , Photochemistry , Radiation Effects , Ultraviolet RaysABSTRACT
The phenomenon of repair in light and darkness in biological systems is compared with the reactions of the pseudophototropy of synthetic macromolecules. The reactions of the pseudophototropy, that is the formation of terminal double bond sequences and their reactions which are effected through ultraviolet irradiation or oxidation, seem to be identical to the mechanism of DNA repair.
