Photodestruction of acetylcholinesterase.
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چکیده
منابع مشابه
Photodestruction of Propionibacterium acnes porphyrins.
The fluorescence spectra of colonies of Propionibacterium acnes were studied under various experimental conditions. The spectra contained peaks at 580 nm and 620 nm. These bands were due to two different components; the 580 nm component was likely to be a metalloporphyrin, and there are indications that the 620 nm component could be a coproporphyrin. The 580 nm fluorescence was destroyed by the...
متن کاملFine Structural Changes in Proplastids during Photodestruction of Pigments
Etiolated bean leaves supplied delta-amino-levulinic acid in the dark synthesize large amounts of protochlorophyllide which is not converted to chlorophyllide upon illumination of the leaves. The fine structure of the proplastids is not affected by the treatment. When leaves containing "inactive" protochlorophyllide are exposed to light of 700 ft-c for 3 hours, they lose practically all their g...
متن کاملPhotodestruction of chloroplast ultrastructure by red light: location of chlorophyll.
A lethal dose (1 Mrad) of gamma rays was given to wheat leaf tissue to restrict migration of the energy of red light photoexcitation to the photosynthetic pigment system. This dose of gamma radiation had no apparent effect on chloroplast ultrastructure in tissue that received no illumination. Subsequent illumination with red light, used to induce chlorophyll-sensitized photodestruction of ultra...
متن کاملUptake of protoporphyrin and violet light photodestruction of Propionibacterium acnes.
The uptake of protoporphyrin IX by Propionibacterium acnes in suspension has been studied by fluorescence spectroscopy. Protoporphyrin, after it was injected into a cell suspension, was firstly bound to receptors on the cell surface and in this state protoporphyrin was non-fluorescent. Subsequently, probably as a result of lateral diffusion in the cell wall, these protoporphyrin-receptor comple...
متن کاملThe Black Bug Myth: Selective photodestruction of pigmented pathogens.
BACKGROUND AND OBJECTIVE It is commonly believed that pigmented pathogens are selectively targeted by dental lasers. To test this notion optical diffuse reflection spectroscopy (DRS) was used to obtain absorption spectra for the periodontal pathogens, Porphyromonas gingivalis (Pg) and Prevotella intermedia (Pi). MATERIALS AND METHODS Spectra from 400 to 1,100 nm wavelengths of Pg colonies cul...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1980
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.77.4.1980