|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Relationship between pigment-protein structure and dynamics of the energy transfer and trapping in cyanobacterial PS Iтезисы доклада
- Авторы: Pishchalnikov Roman, Shubin Vladimir, Terekhova Irina, Kompanets Victor, Kozlovsky Vladimir, Chekalin Sergei, Razjivin Andrei
- Сборник: 10th International Conference “Photosynthesis and Hydrogen Energy Research for Sustainability-2019", June 23 – 28, 2019, Saint Petersburg, Russia, Abstracts, ISBN 978-5-4386-1743-3
- Тезисы
- Год издания: 2019
- Место издания: Komarov Botanical Institute of the Russian Academy of Sciences St. Petersburg
- Первая страница: 69
- Аннотация: Cyanobacterial photosystem I (PS I) constitutes monomeric and trimeric pigment-protein complexes [1], the optical properties of which are marked by the presence of long-wavelength absorption bands. In spite of numerous experimental studies, the nature of these bands is still under debate and requires intensive theoretical analysis. Collecting together the data of linear spectroscopy, single molecule spectroscopy and pump-probe measurements of PS I from Arthrospira platensis, we performed the quantum modeling of optical response based on the molecular exciton theory and the multimode Brownian oscillator model [2–4]. Within the framework of our PS I exciton model, the long-wavelength bands of the spectra are attributed to so-called antenna red chlorophylls. Discussion of exciton model micro parameters of these chlorophylls such as site energies, interaction between pigment molecules, the electron-phonon coupling (Huang-Rhys factors), and also the red chlorophyll localization in PS I monomer and trimer are the subjects of our presentation. References: 1. Shevela D., Pishchainikov R.Y., Eichacker L.A., Govindjee (2013) Oxygenic Photosynthesis in Cyanobacteria in book “Stress biology of cyanobacteria: molecular mechanism to cellular responses”, CRC Press, pp. 3–40 2. Pishchalnikov, R.; Shubin, V.; Razjivin, A. (2019) Molecules, 24(4), 822 3. Roman Pishchalnikov, (2018) Journal of Computational Physics, 372, pp. 603–615 4. Pishchalnikov, R.Y., Shubin, V.V., Razjivin A.P. (2017) Physics of Wave Phenomena 25(3), pp. 185– 195
- Добавил в систему: Разживин Андрей Павлович