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Multiple in vivo Effects of Cadmium on Photosynthetic Electron Transport in Pea Plantsстатья
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: 21 июля 2021 г.
- Авторы: Todorenko Daria, Volgusheva Alena, Timofeev Nyurgun, Kovalenko Ilya, Matorin Dmitry, Antal Taras
- Журнал: Photochemistry and Photobiology
- Год издания: 2021
- Издательство: American Society for Photobiology
- Местоположение издательства: United States
- Номер статьи: php.13469
- DOI: 10.1111/php.13469
- Аннотация: The inhibitory effects of cadmium (CdSO4) on the primary photosynthetic processes were studied in vivo in Pisum sativum by using Multi-function Plant Efficiency Analyser (M-PEA-2). Photosynthetic parameters related to photosystem (PS) II, PS I and intersystem electron carriers were calculated from the light-induced kinetics of prompt chlorophyll a fluorescence (OJIP transient), delayed chlorophyll a fluorescence (DF), and 820 nm modulated reflection (MR). Low-dose exposure to cadmium (20 μM CdSO4 for 48 h) reduced probability of electron transfer from plastoquinones to the terminal electron acceptors of PSI (δRo) accompanied by a decrease in the rate of P700+ and PC reduction (Vred) and the magnitude of the I2 step on the DF kinetics. Electron transport through PSI remained unaltered. The obtained results allowed us to propose existence of potential site of inhibition of photosynthetic electron flow by cadmium between PSII and PSI. We propose to use parameters δRo, Vred, and I2/I1 as sensitive indicators of an early contamination by heavy metals.
- Добавил в систему: Тодоренко Дарья Алексеевна