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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kobzeva T.V., Melnikov A.R., Karogodina T.Y., Zikirin S.B., Stass D.V., Molin Y.N., Rodicheva E.K., Medvedeva S.E., Puzyr A.P., Burov A.A., Bondar V.S., Gitelson J.I.
Заглавие : Stimulation of luminescence of mycelium of luminous fungus Neonothopanus nambi by ionizing radiation
Колич.характеристики :8 с
Коллективы : Program of Siberian Branch of Russian Academy of Sciences [71]; Council for Grants of the President of the Russian Federation for Support of Leading Scientific Schools [NSh 2272.2012.3]; Russian Foundation for Basic Research [12-03-33082]; Program of Government of Russian Federation "On the Efforts for Attracting Leading Researchers to Educational Institutions of Russia" [11.G34.31.0058]
Место публикации : Luminescence: WILEY-BLACKWELL, 2014. - Vol. 29, Is. 7. - С. 703-710. - ISSN 1522-7235, DOI 10.1002/bio.2656. - ISSN 1522-7243
Примечания : Cited References: 29. - The work was supported by the Program of Siberian Branch of Russian Academy of Sciences (project no. 71), Council for Grants of the President of the Russian Federation for Support of Leading Scientific Schools (project no. NSh 2272.2012.3), the Russian Foundation for Basic Research (project no. 12-03-33082), and the Program of Government of Russian Federation "On the Efforts for Attracting Leading Researchers to Educational Institutions of Russia" (grant no. 11.G34.31.0058).
Предметные рубрики: BIOLUMINESCENCE
COMPONENTS
MECHANISMS
SYSTEM
Ключевые слова (''Своб.индексиров.''): higher luminous fungi--neonothopanus nambi--ionizing irradiation--reactive oxygen species--lipid peroxidation
Аннотация: The luminescent system of higher luminous fungi is not fully understood and the enzyme/substrate pair of the light emission reaction has not been isolated. It was suggested that luminescence of fungi involves oxidase-type enzymes, and reactive oxygen species are important for fungal light production. Generation of reactive oxygen species can be stimulated by ionizing irradiation, which has not been studied for luminous fungi. We report the effect of X-irradiation on the luminescence of fungus Neonothopanus nambi. Experiments were performed withmyceliumon a home-built setup based on an X-ray tube and monochromator/photomultiplier tube. Application of X-rays does not change the emission spectrum, but after approximately 20 min of continuous irradiation, light production from unsupported mycelium starts growing and increases up to approximately five times. After peaking, its level decreases irrespective of the presence of X-irradiation. After staying at a certain level, light production collapses to zero, which is not related to the drying of the mycelium or thermal impact of radiation. The observed shape of kinetics is characteristic of a multistage and/or chain reaction. The time profile of light production must reflect the current levels of radicals present in the system and/or the activity of enzyme complexes involved in light production. Copyright (C) 2014 John Wiley & Sons, Ltd.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gerasimova M.A., Kudryasheva N.S.
Заглавие : Effects of potassium halides on bacterial bioluminescence
Колич.характеристики :5 с
Место публикации : J. Photochem. Photobiol. B-Biol.: ELSEVIER SCIENCE SA, 2002. - Vol. 66, Is. 3. - P218-222. - ISSN 1011-1344, DOI 10.1016/S1011-1344(02)00240-3
Примечания : Cited References: 20
Предметные рубрики: COMPONENTS
SEWAGE
Ключевые слова (''Своб.индексиров.''): bioluminescence--halides--heavy atom--inhibition--activation
Аннотация: The effects of potassium halides KCl, KBr and KI on NADH:FMN-oxidoreductase-luciferase bioluminescent coupled enzyme system were studied. The influence of salt additions on bioluminescence intensity and bioluminescence light yield was investigated. The inhibition and activation parameters of the salts were calculated using their dependencies on concentration of the salts. The correlation between the inhibition of bioluminescence intensity and the halide mass was demonstrated: the inhibiting ability of the salts increases with the increase of atomic weight of the anions. The inhibition parameters increase and the activation parameters decrease, accordingly. (C) 2002 Elsevier Science B.V. All rights reserved.
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