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The Effect of Phenols on the Parameters of Chlorophyll Fluorescence and Reactions of P700 in Green Algae Scenedesmus quadricaudaдоклад на конференции
- Авторы: Protopopov Fedor F., Iakovleva Olga V., Matorin Dmitrii N., Alekseev Aleksandr A.
- Международная Конференция (Симпозиум) : 9th Asian Biophysics Association (ABA) symposium ABA 2015
- Даты проведения конференции: 9-12 мая 2015
- Дата доклада: 11 мая 2015
- Тип доклада: Стендовый
- Докладчик: Iakovleva Olga V.
- Место проведения: Hangzhou, China
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Аннотация доклада:
The effect of phenolics, present in wastes of pulp and paper industry, on photosynthesis in microalgae Scenedesmus quadricauda has been studied, analyzing the induction curves of prompt and delayed chlorophyll fluorescence. Energization of photosynthetic membranes was impaired at low concentrations (0.1 mM) of phenol and pyrocatechol. At higher concentrations, phenol and pyrocatechol inhibited electron transport in PS II and increased the share of Q-nonreducing centers. As a result, the rate of P700 pigment regeneration declined. These results indicate that the parameters of fluorescence induction curves can be used for detecting phenol and pyrocatechol in the environment at early stages of toxic effects.
- Добавил в систему: Яковлева Ольга Валентиновна