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The Effects of Cationic Antiseptics on Spectral Characteristics and Electron Transport in Isolated Photosynthetic Complexes of Photosystems I and IIстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 1 января 2025 г.
- Авторы: Paschenko V.Z., Lukashev E.P., Mamedov M.D., Gvozdev D.A., Korvatovsky B.N., Knox P.P., Strakhovskaya M.G.
- Журнал: Biophysics
- Том: 69
- Номер: 3
- Год издания: 2024
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 434
- Последняя страница: 444
- DOI: 10.1134/s0006350924700519
- Аннотация: The effect of cationic antiseptics (at micromolar concentrations) on PSII active core complexes isolated from spinach plants with an intact water oxidation complex and on PSI core complexes from cyanobacterium Synechocystis sp. PCC6803 were studied. Of the antiseptics studied (miramistin, chlorhexidine, octenidine, and picloxydine), octenidine had the greatest effect. It was concluded that its effect on PSII consisted primarily in affecting the structure of the light-harvesting antenna (CP43 and CP47), through which the excitation energy is delivered to the reaction center. As a result, the chlorophyll molecules in this structure were destabilized and their optical and functional characteristics changed. Similar effects were also observed in cyanobacterial complexes of PSI. In addition, the antiseptic affected the rate of establishment of the equilibrium distribution of excited states by spectral forms in the PSI antenna complex. A significant effect of octenidine on the electron transfer rate in the PS I complex was also found: in its presence, the recombination of photo-separated charges between the photoactive pigment P700 and the terminal acceptor FA/FB occurred twice as fast.
- Добавил в систему: Страховская Марина Глебовна