Russian Journal of Biological Physics and Chemisrty Russian Journal of Biological Physics and Chemisrty АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ 2499-9962 54415 Общая биофизика General biophysics Общая биофизика MATHEMATICAL MODELING OF THE LIGHT-INDUCED PROCESSES REGULATION OF OXYGENIC PHOTOSYNTHESIS МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ РЕГУЛЯЦИИ СВЕТОВЫХ СТАДИЙ ОКСИГЕННОГО ФОТОСИНТЕЗА Вершубский А В Vershubskii A V Тихонов Александр Николаевич Tikhonov Aleksandr Nikolaevich an_tikhonov@mail.ru

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 Московский государственный университет им. М.В. Ломоносова ru Lomonosov Moscow State University ru Московский государственный университет имени М.В.Ломоносова Lomonosov Moscow State University 25 06 2019 25 06 2019 4 2 168 177 20 06 2019 20 06 2019 https://rusjbpc.ru/en/nauka/article/54415/view

В настоящем сообщении представлены результаты теоретических исследований, посвященных математическому описанию фотосинтетического транспорта электронов, протонного переноса и синтеза АТР в рамках разработанной нами обобщенной математической модели световых стадий оксигенного фотосинтеза. Модель учитывает ключевые стадии электронного транспорта и протонного переноса в хлоропластах, сопряженного с синтезом АТP, а также процессы регуляции световых стадий фотосинтеза в хлоропластах высших растений и в клетках цианобактерий. Одной из особенностей нашей модели является то, что в ней рассматриваются функционирование как фотосинтетической, так и дыхательной цепи электронного транспорта. Анализ численных экспериментов позволил выделить факторы, ответственные за появление сложной многофазной кинетики электронного транспорта в зависимости от структурных особенностей фотосинтетического аппарата и условий работы фотосинтетического аппарата (латеральная гетерогенность тилакоидных мембран, наличие альтернативных путей переноса электрона, варьирование газового состава среды и интенсивности света).

This report presents the results of theoretical studies on the mathematical description of photosynthetic electron transport, proton transport and ATP synthesis in the framework of our comprehensive mathematical model of light induced processes of oxygenic photosynthesis. The model takes into account the key stages of electron and proton transport in chloroplasts associated with ATP synthesis, as well as the processes of regulation of light stages of photosynthesis in chloroplasts of higher plants and in cyanobacteria cells. One of the features of our model is that it considers the functioning of both photosynthetic and respiratory chain of electronic transport. The analysis of numerical experiments allowed us to identify the factors responsible for the appearance of complex multiphase kinetics of electronic transport, depending on the structural features of the photosynthetic apparatus and the conditions of the photosynthetic apparatus (lateral heterogeneity of thylakoid membranes, the presence of alternative electron transport paths, variation of the gas composition of the medium and light intensity).

 фотосинтез электронный и протонный транспорт математическое моделирование photosynthesis electron and proton transport mathematical modeling

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