Influence of trehalose on high-temperature stability of the photosynthetic reaction centers

P. P. Knox; E. P. Lukashev; N. Kh. Seifullina; V. V. Gorokhov; A. B. Rubin

doi:10.1134/S1607672917060072

Influence of trehalose on high-temperature stability of the photosynthetic reaction centers

Authors: Knox P.P.¹, Lukashev E.P.¹, Seifullina N.K.¹, Gorokhov V.V.¹, Rubin A.B.¹
Affiliations:
1. Faculty of Biology
Issue: Vol 477, No 1 (2017)
Pages: 368-371
Section: Biochemistry, Biophysics, and Molecular Biology
URL: https://journal-vniispk.ru/1607-6729/article/view/212020
DOI: https://doi.org/10.1134/S1607672917060072
ID: 212020

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Abstract

The effect of heating at 65°C for 20 min on the absorption spectra and kinetics of the dark recombination of charges separated between photoactive bacteriochlorophyll and quinone acceptors was studied in dry films of bacterial photosynthetic reaction centers (RCs), RC films in polyvinyl alcohol, and trehalose. A pronounced protective effect of trehalose against pheophytinizaiton of molecules bacteriochlorophylls in RC structure and in maintaining their higher photochemical activity was found.