Seasonal Variations in the Structure of an Anoxygenic Phototrophic Bacterial Community from the Meromictic Lake Trekhtsvetnoe (Kandalaksha Bay, White Sea)

O. N. Lunina; A. S. Savvichev; V. V. Babenko; D. I. Boldyreva; B. B. Kuznetsov; T. V. Kolganova; E. D. Krasnova; N. M. Kokryatskaya; E. F. Veslopolova; D. A. Voronov; N. A. Demidenko; M. A. Letarova; A. V. Letarov; V. M. Gorlenko

doi:10.1134/S0026261719010041

Seasonal Variations in the Structure of an Anoxygenic Phototrophic Bacterial Community from the Meromictic Lake Trekhtsvetnoe (Kandalaksha Bay, White Sea)

作者: Lunina O.N.¹, Savvichev A.S.¹, Babenko V.V.², Boldyreva D.I.², Kuznetsov B.B.³, Kolganova T.V.³, Krasnova E.D.⁴, Kokryatskaya N.M.⁵, Veslopolova E.F.¹, Voronov D.A.⁶^,7, Demidenko N.A.⁸, Letarova M.A.¹, Letarov A.V.¹, Gorlenko V.M.¹
隶属关系:
1. Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences
2. Federal Research and Clinical Center of Physical-Chemical Medicine, Federal Medical Biological Agency
3. Institute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences
4. Pertsov White Sea Biological Station, Moscow State University
5. Laverov Federal Research Center for Comprehensive Arctic Studies, Russian Academy of Sciences
6. Kharkevich Institute for Information Transmission Problems, Russian Academy of Sciences
7. Belozersky Institute of Physico-Chemical Biology, Moscow State University
8. Zubov State Oceanography Institute
期: 卷 88, 编号 1 (2019)
页面: 100-114
栏目: Experimental Articles
URL: https://bakhtiniada.ru/0026-2617/article/view/163869
DOI: https://doi.org/10.1134/S0026261719010041
ID: 163869

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The community of anoxygenic phototrophic bacteria (APB) from the water column of the meromictic Lake Trekhtsvetnoe (Kandalaksha Bay, White Sea, Russia) was studied in March 2012 and 2013 and in September 2013 and 2014. The community structure below the chemocline was shown to restore during three years after partial mixing resulting from seawater admixture into the lake in autumn 2011; a dense layer (at least 10⁸ cells mL^–1) of green-colored (g/c) sulfur bacteria (GSB) was formed. During winter, development of low numbers of brown colored (b/c) GSB was observed in the upper layer of green water. During summer seasons, b/c GSB were found to be located in the oxic zone above the green water layer, which was unusual for these organisms. The APB community was found to contain purple bacteria. Four APB strains were isolated from the upper part of the sulfide zone. The b/c and g/c GSB strains were phylogenetically close to each other and to the type species Chlorobium phaeovibrioides DSM 265 (99% similarity gene sequences). One strain of purple bacteria was phylogenetically related to the brackish sulfur bacteria Thiocapsa marina, while the other was related to freshwater bacteria Rhodopseudomonas palustris. The strains of sulfur bacteria were phylogenetically close to the chemocline bacteria from the stratified Lake Kislo-Sladkoe, also located in the coastal zone of the Kandalaksha Bay, White Sea.

关键词

polar ecosystems, White Sea, stratified and meromictic lakes, anoxygenic phototrophic bacterial communities, phylogeny of the green and brown forms of Chlorobium phaeovibrioides

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Seasonal Variations in the Structure of an Anoxygenic Phototrophic Bacterial Community from the Meromictic Lake Trekhtsvetnoe (Kandalaksha Bay, White Sea)

全文:

详细

关键词

作者简介

O. Lunina

A. Savvichev

V. Babenko

D. Boldyreva

B. Kuznetsov

T. Kolganova

E. Krasnova

N. Kokryatskaya

E. Veslopolova

D. Voronov

N. Demidenko

M. Letarova

A. Letarov

V. Gorlenko

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