Email this article The chloroplast structure nfluence on photon states density and efficiency of solar energy conversion
- Authors: Shabanova K.A.1, Loginov Y.Y.1, Bukhanov E.R.2,3, Volochayev M.N.2, Pyatina S.A.2,4
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Affiliations:
- Reshetnev Siberian State University of Science and Technology
- Kirensky Institute of Physics FRC “KSC of SB RAS”
- Federal Research Center “KSC of SB RAS”
- Institute of Foundamental Biology and Biotechnology
- Issue: Vol 22, No 4 (2021)
- Pages: 708-717
- Section: Section 3. Technological Processes and Materials
- URL: https://journals.eco-vector.com/2712-8970/article/view/562952
- DOI: https://doi.org/10.31772/2712-8970-2021-22-4-708-717
- ID: 562952
Cite item
Abstract
Due to the absorption of solar energy in chloroplasts – green plastids, solar energy is converted into the energy of chemical bonds. Studying the processes of photosynthesis and increasing its efficiency is relevant for the development of closed life support systems, including during long flights in space. Chloroplasts are filled with stacks of highly ordered tilakoid membranes (granas). Pigment-protein photosynthetic complexes are located on the border of these membranes. For a long time, the structural characteristics of chloroplasts were not given due attention and they were studied as isotropic substances, but in recent years it has been shown that they have anisotropic properties and a high conversion coefficient during charge separation. In this work, an approach was proposed for a more accurate spatial determination of grains in plant chloroplasts and determination the single unit. Thylakoid membranes and the boundaries of the facet consisting of them are clearly visible in an electron microscope if the electron beam is directed strictly perpendicularly. It was noticed that when the stage is rotated, different regions of the membranes become either blurred or more distinct, which suggests that the granules in chloroplasts are not located in the same plane. Also, a comparison was made of the influence of different external conditions on the chloroplast structure of a plant, not only through a comparison of morphological characteristics, but also through numerical modeling and comparison of the objects spectral properties. For numerical simulation, periodic lattices were determined for the main structural units of chloroplasts of different samples. On the basis of these gratings, the transmission spectra were calculated using the transfer matrix method. Also, the obtained values of the electromagnetic wave along the lattice made it possible to calculate the graphs of the density of photon states. The results of the calculation method of plots of the density of photon states based on the structure of chloroplasts made it possible not only to assess the possible efficiency of photosynthesis, but also to directly relate these models to the external conditions affecting the plant.
About the authors
Ksenia A. Shabanova
Reshetnev Siberian State University of Science and Technology
Author for correspondence.
Email: shabanova.ksenia@mail.ru
1st year student of magistracy
Russian Federation, 31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037Yuri Y. Loginov
Reshetnev Siberian State University of Science and Technology
Email: loginov@sibsau.ru
Dr. Sc., Professor, Vice-Rector for Research; Reshetnev Siberian State University of Science and Technology
Russian Federation, 31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037Eugene R. Bukhanov
Kirensky Institute of Physics FRC “KSC of SB RAS”; Federal Research Center “KSC of SB RAS”
Email: k26Tony@ya.ru
Junior Researcher, Photonics of Molecular Systems Laboratory
Russian Federation, 50/38, Akademgorodok, Krasnoyarsk, 660036; 50, Academgorodok St., 660036, KrasnoyarskMikhail N. Volochayev
Kirensky Institute of Physics FRC “KSC of SB RAS”
Email: volochaev@iph.krasn.ru
Ph. D., Physics (Mathematics), Researcher, Laboratory of Molecular Spectroscopy
Russian Federation, 50/38, Akademgorodok, Krasnoyarsk, 660036Svetlana A. Pyatina
Kirensky Institute of Physics FRC “KSC of SB RAS”; Institute of Foundamental Biology and Biotechnology
Email: davcbetik@mail.ru
engineer, Siberian Federal University
Russian Federation, 50/38, Akademgorodok, Krasnoyarsk, 660036; 79, Svobodnyi Av., 660041, KrasnoyarskReferences
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