Assessment of Antenna Heterogeneity and the Activity of the Oxygen-Evolving Complex of Photosystem II Using Mathematical Methods

IF 4.033 Q4 Biochemistry, Genetics and Molecular Biology

Biophysics Pub Date : 2024-12-20 DOI:10.1134/S0006350924700490

N. S. Degtereva, T. Yu. Plyusnina, S. S. Khrushchev, R. N. Chervitsov, E. N. Voronova, O. V. Yakovleva, T. K. Antal, G. Yu. Riznichenko, A. B. Rubin

{"title":"Assessment of Antenna Heterogeneity and the Activity of the Oxygen-Evolving Complex of Photosystem II Using Mathematical Methods","authors":"N. S. Degtereva, T. Yu. Plyusnina, S. S. Khrushchev, R. N. Chervitsov, E. N. Voronova, O. V. Yakovleva, T. K. Antal, G. Yu. Riznichenko, A. B. Rubin","doi":"10.1134/S0006350924700490","DOIUrl":null,"url":null,"abstract":"<div>Photosystem II is one of the main pigment–protein complexes of photosynthesis, which is highly sensitive to adverse environmental factors. The heterogeneity of photosystem II properties is necessary for the resistance of autotrophic organisms to stress factors. The assessment of photosystem II heterogeneity can be used in environmental monitoring for the rapid detection of environmental pollution. A comprehensive approach to the assessment of photosystem II heterogeneity is proposed; it is based on a mathematical analysis of the shape of the chlorophyll a fluorescence induction curve of samples treated with 3-(3,4-dichlorophenyl)-1,1-dimethyl urea using a mathematical model and JIP test parameters. Fluorescence induction curves obtained for treated samples of Chlorella, Scenedesmus, Ankistrodesmus, Pleurochloris, and Stichococcus cell cultures were analyzed that grew in light with an intensity of 8 and 16 W/m–2. For all cases, the ratio of reaction centers with different antenna sizes (alpha and beta centers) was estimated and the proportion of active and inactive oxygen-evolving complexes was determined.</div>","PeriodicalId":493,"journal":{"name":"Biophysics","volume":"69 3","pages":"408 - 417"},"PeriodicalIF":4.0330,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biophysics","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1134/S0006350924700490","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Biochemistry, Genetics and Molecular Biology","Score":null,"Total":0}

引用次数: 0

Abstract

Photosystem II is one of the main pigment–protein complexes of photosynthesis, which is highly sensitive to adverse environmental factors. The heterogeneity of photosystem II properties is necessary for the resistance of autotrophic organisms to stress factors. The assessment of photosystem II heterogeneity can be used in environmental monitoring for the rapid detection of environmental pollution. A comprehensive approach to the assessment of photosystem II heterogeneity is proposed; it is based on a mathematical analysis of the shape of the chlorophyll a fluorescence induction curve of samples treated with 3-(3,4-dichlorophenyl)-1,1-dimethyl urea using a mathematical model and JIP test parameters. Fluorescence induction curves obtained for treated samples of Chlorella, Scenedesmus, Ankistrodesmus, Pleurochloris, and Stichococcus cell cultures were analyzed that grew in light with an intensity of 8 and 16 W/m^–2. For all cases, the ratio of reaction centers with different antenna sizes (alpha and beta centers) was estimated and the proportion of active and inactive oxygen-evolving complexes was determined.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Biophysics Biochemistry, Genetics and Molecular Biology-Biophysics

CiteScore

1.20

自引率

0.00%

发文量

期刊介绍： Biophysics is a multidisciplinary international peer reviewed journal that covers a wide scope of problems related to the main physical mechanisms of processes taking place at different organization levels in biosystems. It includes structure and dynamics of macromolecules, cells and tissues; the influence of environment; energy transformation and transfer; thermodynamics; biological motility; population dynamics and cell differentiation modeling; biomechanics and tissue rheology; nonlinear phenomena, mathematical and cybernetics modeling of complex systems; and computational biology. The journal publishes short communications devoted and review articles.