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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Lunina O.N., Bryantseva I.A., Akimov V.N., Rusanov I.I., Barinova E.S., Lysenko A.M., Rogozin D.Yu., Pimenov N.V.
Заглавие : Anoxygenic phototrophic bacterial community of Lake Shira (Khakassia)
Место публикации : Microbiology. - 2007. - Vol. 76, Is. 4. - С. 469-479. - ISSN 00262617 (ISSN) , DOI 10.1134/S0026261707040133
Ключевые слова (''Своб.индексиров.''): anoxygenic photosynthesis--anoxygenic phototrophic bacteria--meromictic brackish lakes--ahrensia kielensis--bacteria (microorganisms)--chlorobi--chlorobium--chlorobium limicola--chromatiaceae--lamprocystis purpurea--photobacteria--proteobacteria--rhodomicrobium--rhodovulum--rhodovulum strictum--thiocapsa roseopersicina
Аннотация: The anoxygenic phototrophic bacterial community of the brackish meromictic Lake Shira (Khakassia) was investigated in August 2001, July 2002, and February-March 2003. In all the periods of investigation, the prevailing microorganisms were purple sulfur bacteria similar to Lamprocystis purpurea in morphology and pigment composition. Their highest number (3 ? 10 5 cells/ml) was recorded in July 2002 at the depth of 15 m. According to 16S rRNA gene analysis, the strain of purple sulfur bacteria isolated in 2001 and designated ShAm01 exhibited 98.6% similarity to the type strain of Thiocapsa roseopersicina and 97.1-94.4% similarity to the type strains of Tca. pendens, Tca. litoralis, and Tca. rosea. The minor microorganisms of the anoxygenic phototrophic bacterial community within the period of investigation were nonsulfur purple bacteria phylogenetically close to Rhodovulum strictum (98.3% similarity, strain ShRb01), Ahrensia kielensis (of 93.9% similarity, strain ShRb02), Rhodomicrobium vannieli (of 99.7% similarity, strain ShRmc01), and green sulfur bacteria, phylogenetically close to Chlorobium limicola (of 98.7% similarity, strain ShCl03). В© 2007 Pleiades Publishing, Ltd.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Lunina O.N., Bryantseva I.A., Akimov V.N., Rusanov I.I., Rogozin D.Yu., Barinova E.S., Lysenko A.M., Pimenov N.V.
Заглавие : Seasonal changes in the structure of the anoxygenic photosynthetic bacterial community in Lake Shunet, Khakassia
Место публикации : Microbiology. - 2007. - Vol. 76, Is. 3. - С. 368-379. - ISSN 00262617 (ISSN) , DOI 10.1134/S0026261707030149
Ключевые слова (''Своб.индексиров.''): anoxygenic photosynthesis--eutrophic meromictic saline lakes--green sulfur phototrophic bacteria--purple nonsulfur phototrophic bacteria--purple sulfur phototrophic bacteria--bacteria (microorganisms)--chlorobi--chromatiaceae--halochromatium--photobacteria--prosthecochloris vibrioformis--proteobacteria--rhodospirillaceae--rhodovulum--rhodovulum euryhalinum--thiocapsa
Аннотация: Seasonal studies of the anoxygenic phototrophic bacterial community of the water column of the saline eutrophic meromictic Lake Shunet (Khakassia) were performed in 2002 (June) and 2003 (February-March and August). From the redox zone down, the lake water was of dark green color. Green sulfur bacteria predominated in every season. The maximum number of green sulfur bacteria was 107 cells/ml in summer and 106 cells/ml in winter. A multi-syringe stratification sampler was applied for the study of the fine vertical distribution of phototrophs in August 2003; the sampling was performed every 5 cm. A 5-cm-thick pink-colored water layer inhabited by purple sulfur bacteria was shown to be located above the layer of green bacteria. The species composition and ratio of purple bacterial species depended on the sampling depth and on the season. In summer, the number of purple sulfur bacteria in the layer of pink water was 1.6 ? 108 cells/ml. Their number in winter was 3 ? 105 cells/ml. In the upper oxygen-containing layer of the chemocline the cells of purple nonsulfur bacteria were detected in summer. The maximum number of nonsulfur purple bacteria, 5 ? 102 cells/ml, was recorded in August 2003. According to the results of the phylogenetic analysis of pure cultures of the isolated phototrophic bacteria, which were based on 16S rDNA sequencing, green sulfur bacteria were close to Prosthecochloris vibrioformis, purple sulfur bacteria, to Thiocapsa and Halochromatium species, and purple nonsulfur bacteria, to Rhodovulum euryhalinum and Pinkicyclus mahoneyensis. В© Nauka/Interperiodica 2007.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pimenov N.V., Rusanov I.I., Karnachuk O.V., Rogozin D.Yu., Bryantseva I.A., Lunina O.N., Yusupov S.K., Parnachev V.P., Ivanov M.V.
Заглавие : Microbial processes of the carbon and sulfur cycles in Lake Shira (Khakasia)
Место публикации : Mikrobiologiya. - 2003. - Vol. 72, Is. 2. - С. 259-267. - ISSN 00263656 (ISSN)
Ключевые слова (''Своб.индексиров.''): anoxygenic photosynthesis--lake shira--production and oxidation of methane--purple sulfur bacteria--sulfate reduction--bacteria (microorganisms)--chromatiaceae--lamprocystis--proteobacteria--thiocapsa--carbon--fresh water--methane--sulfate--sulfur--article--chromatiaceae--comparative study--metabolism--microbiology--oxidation reduction reaction--photosynthesis--russian federation--carbon--chromatiaceae--fresh water--methane--oxidation-reduction--photosynthesis--russia--sulfates--sulfur
Аннотация: Microbiological and biogeochemical studies of the meromictic saline Lake Shira (Khakasia) were conducted. In the upper part of the hydrogen-sulfide zone, at a depth of 13.5-14 m, there was a pale pink layer of water due to the development of purple bacteria (6 ? 10 5 cells/ml), which were assigned by their morphological and spectral characteristics to Lamprocystis purpureus (formerly Amoebobacter purpurea). In August, the production of organic matter (OM) in Lake Shira was estimated to be 943 mg C/(m 2 day). The contribution of anoxygenic photosynthesis was insignificant (about 7% of the total OM production). The share of bacterial chemosynthesis was still less (no more than 2%). In the anaerobic zone, the community of sulfate-reducing bacteria played a decisive role in the terminal decomposition of OM. The maximal rates of sulfate reduction were observed in the near-bottom water (114 ?g S/(1 day)) and in the surface layer of bottom sediments (901 ?g S/(dm 3 day)). The daily expenditure of C org for sulfate reduction was 73% of C org formed daily in the processes of oxygenic and anoxygenic photosynthesis and bacterial chemosynthesis. The profile of methane distribution in the water column and bottom sediments was typical of meromictic reservoirs. The methane content in the water column increased beginning with the thermocline (7-8 m), and reached maximum values in the near-bottom water (17 ?l/l). In bottom sediments, the greatest methane concentrations (57 ?l/l) were observed in the surface layer (0-3 cm). The integral rate of methane formation in the water column and bottom sediments was almost an order of magnitude higher than the rate of its oxidation by aerobic and anaerobic methanotrophic microorganisms.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pimenov N.V., Rusanov I.I., Karnachuk O.V., Rogozin D.Yu., Bryantseva I.A., Lunina O.N., Yusupov S.K., Parnachev V.P., Ivanov M.V.
Заглавие : Microbial processes of the carbon and sulfur cycles in Lake Shira (Khakasia)
Место публикации : Microbiology. - 2003. - Vol. 72, Is. 2. - С. 221-229. - ISSN 00262617 (ISSN) , DOI 10.1023/A:1023228316838
Ключевые слова (''Своб.индексиров.''): anoxygenic photosynthesis--lake shira--production and oxidation of methane--purple sulfur bacteria--sulfate reduction--bacteria (microorganisms)--chromatiaceae--lamprocystis purpurea--proteobacteria--thiocapsa
Аннотация: Microbiological and biogeochemical studies of the meromictic saline Lake Shira (Khakasia) were conducted. In the upper part of the hydrogen-sulfide zone, at a depth of 13.5-14 m, there was a pale pink layer of water due to the development of purple bacteria (6 ? 105 cells/ml), which were assigned by their morphological and spectral characteristics to Lamprocystis purpurea (formerly Amoebobacter purpureus). In August, the production of organic matter (OM) in Lake Shira was estimated to be 943 mg C/(m2 day). The contribution of anoxygenic photosynthesis was insignificant (about 7% of the total OM production). The share of bacterial chemosynthesis was still less (no more than 2%). In the anaerobic zone, the community of sulfate-reducing bacteria played a decisive role in the terminal decomposition of OM. The maximal rates of sulfate reduction were observed in the near-bottom water (114 ?g S/(1 day)) and in the surface layer of bottom sediments (901 ?g S/(dm3 day)). The daily expenditure of Corg for sulfate reduction was 73% of Corg formed daily in the processes of oxygenic and anoxygenic photosynthesis and bacterial chemosynthesis. The profile of methane distribution in the water column and bottom sediments was typical of meromictic reservoirs. The methane content in the water column increased beginning with the thermocline (7-8 m) and reached maximum values in the near-bottom water (17 ?l/l). In bottom sediments, the greatest methane concentrations (57 ?l/l) were observed in the surface layer (0-3 cm). The integral rate of methane formation in the water column and bottom sediments was almost an order of magnitude higher than the rate of its oxidation by aerobic and anaerobic methanotrophic microorganisms.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Лунина О.Н., Брянцева И.А., Акимов В.Н., Русанов И.И., Рогозин Д.Ю., Баринова Е.С., Лысенко А.М., Пименов Н.В.
Заглавие : Cезонные изменения структуры сообщества аноксигенных фототрофных бактерий озера Шунет (Хакасия) : научное издание
Место публикации : Микробиология. - 2007. - Т. 76, N 3. - С. 416-428. - ISSN 0026-3656
ГРНТИ : 62.01.94
Предметные рубрики: АНОКСИГЕННЫЕ ФОТОТРОФНЫЕ БАКТЕРИИ
ЗЕЛ:ЕНЫЕ СЕРОБАКТЕРИИ
ПУРПУРНЫЕ СЕРОБАКТЕРИИ
НЕСЕРНЫЕ ПУРПУРНЫЕ БАКТЕРИИ
СЕЗОННЫЕ ИССЛЕДОВАНИЯ
ИЗМЕНЕНИЯ ЧИСЛЕННОСТИ
ОЗЕРА
Аннотация: В июне 2002 г., феврале-марте и августе 2003 г. проводились сезонные исследования сообщества аноксигенных фототрофных бактерий водной толщи соленого евтрофного меромиктического озера Шунет (Хакасия). Начиная с редокс-зоны и до дна, вода в озере была окрашена в темно-зеленый цвет. Независимо от сезона, доминирующими видами в сообществе были зеленые серобактерии. Максимальная численность зеленых серобактерий летом составляла 10{7} кл/мл, зимой - 0{6} кл/мл. Для изучения тонкослойного распределения фототрофов в августе 2003 г. был применен многошприцевый стратификационный пробоотборник, позволяющий отбирать пробы через каждые 5 см по глубине. Было показано, что над слоем зеленых бактерий находится 5-сантиметровый розово окрашенный слой воды, образованный пурпурными серобактериями. Состав и соотношение разных видов пурпурных бактерий менялись в зависимости от глубины пробоотбора и от сезона исследования. Численность пурпурных серобактерий летом в слое розовой воды составляла 1,6*10{6} кл/мл. Зимой численность пурпурных серобактерий в воде озера составляла 3*10{5} кл/мл. В верхнем кислородсодержащем слое хемоклина в летние сезоны были найдены клетки несерных пурпурных бактерий. Максимальная численность несерных пурпурных бактерий зафиксирована в августе 2003 г., она составляла 5*10{2} кл/мл. По данным филогенетического анализа чистых культур выделенных фототрофных бактерий, проведенного на основании 16S рДНК, зеленые серобактерии оказались близки к Prosthecochloris vibrioformis, пурпурные серобактерии - к видам родов Thiocapsa, Halochromatium, а пурпурные несерные бактерии - к видам Rhodovulum euryhalinum и Roseicyclus mahoneyensis. Россия, ИНМИ РАН, Москва. Библ. 21
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Лунина О.Н., Брянцева И.А., Акимов В.Н., Русанов И.И., Баринова Е.С., Лысенко А.М., Рогозин Д.Ю., Пименов Н.В.
Заглавие : Сообщество аноксигенных фототрофных бактерий озера Шира (Хакасия) : научное издание
Место публикации : Микробиология. - 2007. - Т. 76, N 4. - С. 533-544. - ISSN 0026-3656
ГРНТИ : 62.01.94
Предметные рубрики: АНОКСИГЕННЫЕ ФОТОТРОФНЫЕ БАКТЕРИИ
ПУРПУРНЫЕ СЕРОБАКТЕРИИ
ПУРПУРНЫЕ НЕСЕРНЫЕ БАКТЕРИИ
ЗЕЛЕНЫЕ СЕРОБАКТЕРИИ
ВИДОВОЙ СОСТАВ
ОЗЕРА
Аннотация: В августе 2001 г., июле 2002 г. и феврале-марте 2003 г. проводились исследования сообщества аноксигенных фитотрофных бактерий солоноватого меромиктического озера Шира (Хакасия). Доминирующими микроорганизмами в сообществе во все периоды исследований были пурпурные серобактерии, по морфологии и пигментному составу близкие к Lamprocystis purpurea. Максимальная численность этих бактерий была зафиксирована в июле 2002 г. на глубине 15 м, она состояла 3*10{5} кл/мл. Выделенный в 2001 г. штамм пурпурных серобактерий, названный ShAm01, по данным анализа 16S рРНК, имел 98,6% сходства с типовым штаммом Thiocapsa roseopersicina и 97,1-94,4% сходства с типовыми штаммами видов Tca. pendens, Tca. litoralis и Tca. rosea. Минорными микроорганизмами в сообществе аноксигенных фототрофных бактерий в разные сезоны исследований были несерные пурпурные бактерии, филогенетически близкие к Rhodovulum strictum (98,3% сходства, штамм ShRb01), Ahrensia kielensis (93,9% сходства, штамм ShRb02), Rhodomicrobium vannieli (99,7% сходства, штамм ShRmc01), а также зеленые серобактерии, филогенетически близкие к Chlorobium limicola (98,7% сходства, штамм ShCl03). Россия, ИНМИ РАН, Москва. Библ. 19
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rogozin D. Y., Zykov V. V., Tarnovskii M. O.
Заглавие : Dynamics of purple sulfur bacteria in a meromictic saline Lake Shunet (Khakassia, Siberia) in 2007–2013
Место публикации : Microbiology. - 2016. - Vol. 85, Is. 1. - С. 93-101. - ISSN 00262617 (ISSN) , DOI 10.1134/S0026261716010100
Ключевые слова (''Своб.индексиров.''): long-term dynamics--meromictic lake--purple sulfur bacteria--stratification
Аннотация: According to the results of seasonal monitoring, in 2007–2013 purple sulfur bacteria morphologically similar to Thiocapsa sp. Shira_1 (AJ633676 in EMBL/GenBank) predominated in the anoxygenic phototrophic community of the water column of the meromictic Lake Shira (Khakassia, Siberia). No pronounced seasonal periodicity in the total cell number in the water column was revealed during the period of observation. In some years cell number during the period when the lake was covered with ice was reliably higher than in summer. The absence of seasonal periodicity was probably due to the low amplitude of seasonal variations in temperature and illumination in the redox zone, resulting from its relatively deep location (12–16 m). The year-to-year dynamics was characterized by a reliable decrease of the total cell number in 2009–2010 and maxima in 2007 and 2011–2012. Canonical correlation analysis revealed that water temperature in the redox zone was the best predictor of the PSB abundance in Lake Shira. Water temperature, in turn, depended on the depth of mixing of the water column. Intense mixing in 2009–2011 was probably responsible for decreased PSB abundance in the lake. On the other hand, the absence of deep winter mixing, resulting in stable conditions in the chemocline, favored the preservation of relatively high PSB biomass. Prediction of circulation depth, which depends mainly on the weather conditions and dynamics of the water level, is required for prediction of PSB abundance in Lake Shira. These results may be useful for paleolimnological reconstructions of the history of the lake based on the remnants of purple sulfur bacteria in bottom sediments. © 2016, Pleiades Publishing, Ltd.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Baatar, Bayanmunkh, Chiang, Pei-Wen, Rogozin, Denis Yu, Wu, Yu-Ting, Tseng, Ching-Hung, Yang, Cheng-Yu, Chiu, Hsiu-Hui, Oyuntsetseg, Bolormaa, Degermendzhy, Andrey G., Tang, Sen-Lin
Заглавие : Bacterial Communities of Three Saline Meromictic Lakes in Central Asia
Колич.характеристики :22 с
Коллективы : National Sciences Council of Taiwan [NSC99- 2923-B-001-001-MY3, NSC 102-2923-B-001-004, NSC101-2923-B-001-003-MY3, NSC99-2923-B-001-001-MY3]; Biodiversity Research Center, Academia Sinica, Taiwan; Russian Foundation for Basic Research [14-04-01060-a]
Место публикации : PLoS One: PUBLIC LIBRARY SCIENCE, 2016. - Vol. 11, Is. 3. - Ст.e0150847. - ISSN 1932-6203, DOI 10.1371/journal.pone.0150847
Примечания : Cited References:65. - This study was supported by the thematic project funding of Taiwan-Russian Joint Project (NSC99- 2923-B-001-001-MY3 and NSC 102-2923-B-001-004) and Taiwan-Mongolian Joint Project (NSC101-2923-B-001-003-MY3) from the National Sciences Council of Taiwan and Biodiversity Research Center, Academia Sinica, Taiwan and the Russian Foundation for Basic Research, Grant No. 14-04-01060-a.; We thank our Russian and Mongolian colleagues in the Institute of Biophysics SB RAS and National University of Mongolia for assistance with providing samples and hydro-parameter data. This study was supported by the thematic project funding of Taiwan-Russian Joint Project (NSC99-2923-B-001-001-MY3 and NSC 102-2923-B-001-004) and Taiwan-Mongolian Joint Project (NSC101-2923-B-001-003-MY3) from the National Sciences Council of Taiwan and Biodiversity Research Center, Academia Sinica, Taiwan and the Russian Foundation for Basic Research, Grant No. 14-04-01060-a.
Предметные рубрики: PURPLE SULFUR BACTERIA
REAL-TIME PCR
MICROBIAL COMMUNITIES
Аннотация: Meromictic lakes located in landlocked steppes of central Asia (similar to 2500 km inland) have unique geophysiochemical characteristics compared to other meromictic lakes. To characterize their bacteria and elucidate relationships between those bacteria and surrounding environments, water samples were collected from three saline meromictic lakes (Lakes Shira, Shunet and Oigon) in the border between Siberia and the West Mongolia, near the center of Asia. Based on in-depth tag pyrosequencing, bacterial communities were highly variable and dissimilar among lakes and between oxic and anoxic layers within individual lakes. Proteobacteria, Bacteroidetes, Cyanobacteria, Actinobacteria and Firmicutes were the most abundant phyla, whereas three genera of purple sulfur bacteria (a novel genus, Thiocapsa and Halochromatium) were predominant bacterial components in the anoxic layer of Lake Shira (similar to 20.6% of relative abundance), Lake Shunet (similar to 27.1%) and Lake Oigon (similar to 9.25%), respectively. However, few known green sulfur bacteria were detected. Notably, 3.94% of all sequencing reads were classified into 19 candidate divisions, which was especially high (23.12%) in the anoxic layer of Lake Shunet. Furthermore, several hydro-parameters (temperature, pH, dissolved oxygen, H2S and salinity) were associated (P0.05) with variations in dominant bacterial groups. In conclusion, based on highly variable bacterial composition in water layers or lakes, we inferred that the meromictic ecosystem was characterized by high diversity and heterogenous niches.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Wu, Yu-Ting, Yang, Cheng-Yu, Chiang, Pei-Wen, Tseng, Ching-Hung, Chiu, Hsiu-Hui, Saeed, Isaam, Baatar, Bayanmunkh, Rogozin, Denis, Halgamuge, Saman, Degermendzhi, Andrei, Tang, Sen-Lin
Заглавие : Comprehensive Insights Into Composition, Metabolic Potentials, and Interactions Among Archaeal, Bacterial, and Viral Assemblages in Meromictic Lake Shunet in Siberia
Колич.характеристики :21 с
Коллективы : Ministry of Science and Technology in Taiwan [NSC 99-2923-B-001-001-MY3, NSC 102-2923-B-001-004]; Russian Foundation for Basic Research [16-05-00091-a]; Russian Federation [NSh-9249.2016.5]
Место публикации : Front. Microbiol.: FRONTIERS MEDIA SA, 2018. - Vol. 9. - Ст.1763. - ISSN 1664-302X, DOI 10.3389/fmicb.2018.01763
Примечания : Cited References:103. - This research was supported by the Ministry of Science and Technology in Taiwan through the Taiwan-Russia Joint Project Grant NSC 99-2923-B-001-001-MY3 and NSC 102-2923-B-001-004 and the Russian Foundation for Basic Research, Grant No. 16-05-00091-a. The research was partially supported by the Council on grants from the President of the Russian Federation for support of leading scientific schools (grant NSh-9249.2016.5).
Предметные рубрики: BACTERIOPLANKTON COMMUNITY COMPOSITION
RIBOSOMAL-RNA GENES
ANTARCTIC
Ключевые слова (''Своб.индексиров.''): lake shunet--metagenomics--archaeal--bacterial and viral assemblages--meromictic lake
Аннотация: Microorganisms are critical to maintaining stratified biogeochemical characteristics in meromictic lakes; however, their community composition and potential roles in nutrient cycling are not thoroughly described. Both metagenomics and metaviromics were used to determine the composition and capacity of archaea, bacteria, and viruses along the water column in the landlocked meromictic Lake Shunet in Siberia. Deep sequencing of 265 Gb and high-quality assembly revealed a near-complete genome corresponding to Nonlabens sp. sh3vir. in a viral sample and 38 bacterial bins (0.2-5.3 Mb each). The mixolimnion (3.0 m) had the most diverse archaeal, bacterial, and viral communities, followed by the monimolimnion (5.5 m) and chemocline (5.0 m). The bacterial and archaeal communities were dominated by Thiocapsa and Methanococcoides, respectively, whereas the viral community was dominated by Siphoviridae. The archaeal and bacterial assemblages and the associated energy metabolism were significantly related to the various depths, in accordance with the stratification of physicochemical parameters. Reconstructed elemental nutrient cycles of the three layers were interconnected, including co-occurrence of denitrification and nitrogen fixation in each layer and involved unique processes due to specific biogeochemical properties at the respective depths. According to the gene annotation, several pre-dominant yet unknown and uncultured bacteria also play potentially important roles in nutrient cycling. Reciprocal BLAST analysis revealed that the viruses were specific to the host archaea and bacteria in the mixolimnion. This study provides insights into the bacterial, archaeal, and viral assemblages and the corresponding capacity potentials in Lake Shunet, one of the three meromictic lakes in central Asia. Lake Shunet was determined to harbor specific and diverse viral, bacterial, and archaeal communities that intimately interacted, revealing patterns shaped by indigenous physicochemical parameters.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Wu Y. -T., Chiang P. -W., Tandon K., Rogozin D. Y., Degermendzhy A. G., Tang S. -L.
Заглавие : Single-cell genomics-based analysis reveals a vital ecological role of thiocapsa sp. LSW in the meromictic Lake Shunet, Siberia
Место публикации : Microb. Genomics: Microbiology Society, 2021. - Vol. 7, Is. 12. - Ст.000712. - ISSN 20575858 (ISSN), DOI 10.1099/mgen.0.000712
Аннотация: Meromictic lakes usually harbour certain prevailing anoxygenic phototrophic bacteria in their anoxic zone, such as the purple sulfur bacterium (PSB) Thiocapsa sp. LSW (hereafter LSW) in Lake Shunet, Siberia. PSBs have been suggested to play a vital role in carbon, nitrogen and sulfur cycling at the oxic–anoxic interface of stratified lakes; however, the ecological significance of PSBs in the lake remains poorly understood. In this study, we explored the potential ecological role of LSW using a deep-sequencing analysis of single-cell genomics associated with flow cytometry. An approximately 2.7 Mb draft genome was obtained based on the co-assembly of five single-cell genomes. LSW might grow photolithoautotrophically and could play putative roles not only as a carbon fixer and diazotroph, but also as a sulfate reducer/oxidizer in the lake. This study provides insights into the potential ecological role of Thiocapsa sp. in meromictic lakes. © 2021 The Authors.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Wu, Yu-Ting, Chiang, Pei-Wen, Tandon, Kshitij, Rogozin, Denis Yu, Degermendzhy, Andrey G., Tang, Sen-Lin
Заглавие : Single- cell genomics-based analysis reveals a vital ecological role of Thiocapsa sp. LSW in the meromictic Lake Shunet, Siberia
Колич.характеристики :10 с
Коллективы : Ministry of Science and Technology in Taiwan through the Taiwan-Russia Joint Project [NSC102-2923-B-001-004-MY3]; Russian Foundation for Basic Research GrantRussian Foundation for Basic Research (RFBR) [21-54-52001]; MOST [105-2923-B-001-001-MY3]
Место публикации : Microb. Genomics: MICROBIOLOGY SOC, 2021. - Vol. 7, Is. 12. - Ст.000712. - ISSN 2057-5858, DOI 10.1099/mgen.0.000712
Примечания : Cited References:69. - This research was funded by the Ministry of Science and Technology in Taiwan through the Taiwan-Russia Joint Project Grant NSC102--2923-B--001--004--MY3 and by the Russian Foundation for Basic Research Grant (project no. 21--54--52001) and MOST (105--2923--B--001--001--MY3).
Предметные рубрики: PHOTOTROPHIC BACTERIAL COMMUNITY
PURPLE SULFUR BACTERIUM
SP NOV.
Аннотация: Meromictic lakes usually harbour certain prevailing anoxygenic phototrophic bacteria in their anoxic zone, such as the purple sulfur bacterium (PSB) Thiocapsa sp. LSW (hereafter LSW) in Lake Shunet, Siberia. PSBs have been suggested to play a vital role in carbon, nitrogen and sulfur cycling at the oxic-anoxic interface of stratified lakes; however, the ecological significance of PSBs in the lake remains poorly understood. In this study, we explored the potential ecological role of LSW using a deepsequencing analysis of single- cell genomics associated with flow cytometry. An approximately 2.7 Mb draft genome was obtained based on the co- assembly of five single- cell genomes. LSW might grow photolithoautotrophically and could play putative roles not only as a carbon fixer and diazotroph, but also as a sulfate reducer/oxidizer in the lake. This study provides insights into the potential ecological role of Thiocapsa sp. in meromictic lakes.
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