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Effects of sulfur limitation on photosystem II functioning in Chlamydomonas reinhardtii as probed by chlorophyll a fluorescenceстатья
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 июля 2013 г.
- Авторы: Antal Taras K., Volgusheva Alena A., Kukarskih Galina P., Bulychev Alexander A., Krendeleva Tatyana E., Rubin Andrey B.
- Журнал: Physiologia Plantarum
- Том: 128
- Номер: 2
- Год издания: 2006
- Издательство: Blackwell Publishing Inc.
- Местоположение издательства: United Kingdom
- Первая страница: 360
- Последняя страница: 367
- DOI: 10.1111/j.1399-3054.2006.00734.x
- Аннотация: Chlorophyll fluorescence methods were applied to probe in vivo photosystem II (PSII) function in Chlamydomonas reinhardtii grown in sulfur-depleted media under aerobic conditions. The rates of oxygen evolution and dark reduction decreased during a 24-h incubation in sulfur-deficient medium, while the respiration rate increased. The analysis of chlorophyll fluorescence induction curves suggests that electron transport was perturbed on both the acceptor and donor sides of PSII. Light-induced violaxanthin de-epoxidation and non-photochemical fluorescence quenching were suppressed, owing to dark accumulation of zeaxanthin. Also sulfur-deprived cells showed elevated concentrations of violaxanthin and lutein. Sulfur deprivation stimulated a pronounced (three- to four-fold) increase in chlorophyll a fluorescence intensity (parameters Fo and Fm), probably due to greater light absorption by carotenoids and changes in the excitation energy transfer and deactivation in PSII of C. reinhardtii.
- Добавил в систему: Булычев Александр Александрович