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Radioprotective role of cyanobacterial phycobilisomesстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 марта 2019 г.
- Авторы: Klementiev Konstantin E., Maksimov Eugene G., Gvozdev Danil A., Tsoraev Georgy V., Protopopov Fedor F., Elanskaya Irina V., Abramov Sergey M., Dyakov Mikhail Yu, Ilyin Vyacheslav K., Nikolaeva Nadezhda A., Moisenovich Mikhail M., Moisenovich Anastasia M., Slonimskiy Yury B., Sluchanko Nikolai N., Lebedev Victor M., Spassky Andrew V., Thomas Friedrich, Maksimov Georgy V., Paschenko Vladimir Z., Rubin Andrew B.
- Журнал: Biochimica et Biophysica Acta - Bioenergetics
- Том: 1860
- Номер: 2
- Год издания: 2019
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 121
- Последняя страница: 128
- DOI: 10.1016/j.bbabio.2018.11.018
- Аннотация: Cyanobacteria are thought to be responsible for pioneering dioxygen production and the so-called “Great Oxygenation Event” that determined the formation of the ozone layer and the ionosphere restricting ionizing radiation levels reaching our planet, which increased biological diversity but also abolished the necessity of radioprotection. We speculated that ancient protection mechanisms could still be present in cyanobacteria and studied the effect of ionizing radiation and space flight during the Foton-M4 mission on Synechocystis sp. PCC6803. Spectral and functional characteristics of photosynthetic membranes revealed numerous similarities of the effects of α-particles and space flight, which both interrupted excitation energy transfer from phycobilisomes to the photosystems and significantly reduced the concentration of phycobiliproteins. Although photosynthetic activity was severely suppressed, the effect was reversible, and the cells could rapidly recover from the stress. We suggest that the actual existence and the uncoupling of phycobilisomes may play a specific role not only in photo-, but also in radioprotection, which could be crucial for the early evolution of Life on Earth.
- Добавил в систему: Абрамов Сергей Маркович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | 1-s2.0-S0005272818302469-main.pdf | 1,3 МБ | 3 декабря 2018 [klementyevk] |