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Bacteriochlorophyll Fluorescence of Green Sulfur Bacteria in Anaerobic Zone of Two Natural Water Bodies

A. V. Kharcheva$^1$, A. A. Zhiltsova$^1$, O. N. Lunina$^2$, E. D. Krasnova$^3$, D. A. Voronov$^{4,5}$, A. S. Savvichev$^2$, S. V. Patsaeva$^1$

Moscow University Physics Bulletin 2018. 73. N 4. P. 377

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Annotation

Absorption and fluorescence spectra for living cells of green sulfur bacteria inhabiting the anaerobic zone of two meromictic lakes separated from the White Sea have been studied. The spectral-optical properties of pure cultures of green-colored and brown-colored species of green sulfur bacteria Chlorobium phaeovibrioides have been compared, and the content of bacteriochlorophyll molecules in one bacterial cell of each species has been estimated. The method of separating the contributions of different groups of green sulfuric bacteria to bacteriochlorophyll fluorescence was applied for a mixture of two species of bacteria with different pigmentation. The depth distributions of fluorescence intensity and concentration of bacteriochlorophylls for microorganisms inhabiting the Trekhtzvetnoe and Elovoe lakes at the Kandalaksha Gulf of the White Sea were plotted.

Received: 2017 September 13
Approved: 2019 January 24
PACS:
33.50.Dq Fluorescence and phosphorescence spectra
42.68.Xy Ocean optics
Rissian citation:
А. В. Харчева, А. А. Жильцова, О. Н. Лунина, Е. Д. Краснова, Д. А. Воронов, А. С. Саввичев, С. В. Пацаева.
Флуоресценция бактериохлорофиллов зеленых серных бактерий в анаэробной зоне двух природных водоемов.
Вестн. Моск. ун-та. Сер. 3. Физ. Астрон. 2018. № 4. С. 40.
Authors
A. V. Kharcheva$^1$, A. A. Zhiltsova$^1$, O. N. Lunina$^2$, E. D. Krasnova$^3$, D. A. Voronov$^{4,5}$, A. S. Savvichev$^2$, S. V. Patsaeva$^1$
$^1$Department of General Nuclear Physics, Faculty of physics, Lomonosov Moscow State University, chair of General Physics .
$^2$Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences
$^3$Faculty of Biology, Lomonosov Moscow State University
$^4$Institute for Information Transmission Problems of the Russian Academy of Sciences (Kharkevich Institute)
$^5$A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University
Issue 4, 2018

Moscow University Physics Bulletin

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