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Microbial processes of the carbon and sulfur cycles in Lake Shira (Khakasia) / N. V. Pimenov [et al.] // Microbiology. - 2003. - Vol. 72, Is. 2. - P221-229, DOI 10.1023/A:1023228316838 . - ISSN 0026-2617
Кл.слова (ненормированные):
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.

Scopus
Держатели документа:
Institute of Microbiology, Russian Academy of Sciences, pr. 60-letiya Oktyabrya 7, k. 2, Moscow, 117312, Russian Federation
Tomsk State University, Tomsk, Russian Federation
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
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.

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Microbial processes of the carbon and sulfur cycles in Lake Shira (Khakasia) / N. V. Pimenov [и др.] // Mikrobiologiya. - 2003. - Vol. 72, Is. 2. - С. 259-267 . - ISSN 0026-3656
Кл.слова (ненормированные):
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.

Scopus
Держатели документа:
Institute of Microbiology, Russian Academy of Sciences, pr. 60-letiya Oktyabrya 7, k. 2, Moscow, 117312, Russian Federation
Tomsk State University, Tomsk, Russian Federation
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
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.

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Microbial processes of the carbon and sulfur cycles in Lake Shira (Khakasia) [Text] / N. V. Pimenov [et al.] // Microbiology. - 2003. - Vol. 72, Is. 2. - P. 221-229, DOI 10.1023/A:1023228316838. - Cited References: 17 . - ISSN 0026-2617

РУБ Microbiology
Рубрики:
BACTERIA
NOV
Кл.слова (ненормированные):
Lake Shira -- anoxygenic photosynthesis -- purple sulfur bacteria -- sulfate reduction -- production and oxidation of methane
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 x 10(5) 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/(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 mug S/(1 day)) and in the surface layer of bottom sediments (901 mug 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 mul/l). In bottom sediments, the greatest methane concentrations (57 mul/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.

WOS
Держатели документа:
Russian Acad Sci, Inst Microbiol, Moscow 117312, Russia
Tomsk VV Kuibyshev State Univ, Tomsk, Russia
Russian Acad Sci, Siberian Div, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Pimenov, N.V.; Rusanov, I.I.; Karnachuk, O.V.; Rogozin, D.Y.; Bryantseva, I.A.; Lunina, O.N.; Yusupov, S.K.; Parnachev, V.P.; Ivanov, M.V.

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Microbiological and isotopic-geochemical investigations of meromictic lakes in Khakasia in winter / A. S. Savvichev [и др.] // Mikrobiologiya. - 2005. - Vol. 74, Is. 4. - С. 552-561 . - ISSN 0026-3656
Кл.слова (ненормированные):
Meromictic water bodies -- Microbial production and oxidation of methane -- Photosynthesis -- Stable isotopes of carbon (? 13C) and sulfur (? 34S) -- Sulfate reduction -- Bacteria (microorganisms) -- Chlorobi -- Chromatiaceae -- Lamprocystis purpurea -- Pelodictyon luteolum -- Photobacteria -- carbon -- fresh water -- methane -- sulfate -- sulfur -- article -- bacterial phenomena and functions -- bacterium -- comparative study -- isolation and purification -- metabolism -- microbiology -- oxidation reduction reaction -- photosynthesis -- Russian Federation -- season -- species difference -- Bacteria -- Bacterial Physiology -- Carbon Isotopes -- Fresh Water -- Methane -- Oxidation-Reduction -- Photosynthesis -- Seasons -- Siberia -- Species Specificity -- Sulfates -- Sulfur Isotopes -- Water Microbiology
Аннотация: Microbiological and isotopic-geochemical investigations of the brackish meromictic lakes Shira and Shunet were performed in the steppe region of Khakasia in winter. Measurements made with a submersed sensor demonstrated that one-meter ice transmits light in a quantity sufficient for oxygenic and anoxygenic photosynthesis. As in the summer season, in the community of phototrophic bacteria found in Lake Shira, the purple sulfur bacteria Amoebobacter purpureus dominated, whereas, in Lake Shunet, the green sulfur bacteria Pelodictyon luteolum were predominant. Photosynthetic production, measured using the radioisotopic method, was several times lower than that in summer. The rates of sulfate reduction and production and oxidation of methane in the water column and bottom sediments were also lower than those recorded in summer. The process of anaerobic methane oxidation in the sediments was an exception, being more intense in winter than in summer. The data from radioisotopic measurements of the rates of microbial processes correlate well with the results of determination of the isotopic composition of organic and mineral carbon (? 13C) and hydrogen sulfide and sulfate (? 34S) and suggest considerable seasonal variations in the activity of the microbial community in the water bodies investigated.

Scopus
Держатели документа:
Winogradsky Institute of Microbiology, Russian Academy of Sciences, pr. 60-letiya Oktyabrya, Moscow, 117811, Russian Federation
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 36, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Savvichev, A.S.; Rusanov, I.I.; Rogozin, D.Yu.; Zakharova, E.E.; Lunina, O.N.; Bryantseva, I.A.; Yusupov, S.K.; Pimenov, N.V.; Degermendzhi, A.G.; Ivanov, M.V.

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Microbiological and isotopic-geochemical investigations of meromictic lakes in Khakasia in winter / A. S. Savvichev [et al.] // Microbiology. - 2005. - Vol. 74, Is. 4. - P477-485, DOI 10.1007/s11021-005-0092-x . - ISSN 0026-2617
Кл.слова (ненормированные):
Meromictic water bodies -- Microbial production and oxidation of methane -- Photosynthesis -- Stable isotopes of carbon (?13C) and sulfur (?34S) -- Sulfate reduction -- Chlorobi -- Chromatiaceae -- Lamprocystis purpurea -- Pelodictyon luteolum -- Photobacteria
Аннотация: Microbiological and isotopic-geochemical investigations of the brackish meromictic lakes Shira and Shunet were performed in the steppe region of Khakasia in winter. Measurements made with a submersed sensor demonstrated that one-meter ice transmits light in a quantity sufficient for oxygenic and anoxygenic photosynthesis. As in the summer season, in the community of phototrophic bacteria found in Lake Shira, the purple sulfur bacteria Amoebobacter purpureus dominated, whereas, in Lake Shunet, the green sulfur bacteria Pelodictyon luteolum were predominant. Photosynthetic production, measured using the radioisotopic method, was several times lower than that in summer. The rates of sulfate reduction and production and oxidation of methane in the water column and bottom sediments were also lower than those recorded in summer. The process of anaerobic methane oxidation in the sediments was an exception, being more intense in winter than in summer. The data from radioisotopic measurements of the rates of microbial processes correlate well with the results of determination of the isotopic composition of organic and mineral carbon (?13C) and hydrogen sulfide and sulfate (?34S) and suggest considerable seasonal variations in the activity of the microbial community in the water bodies investigated. В© 2005 Pleiades Publishing, Inc.

Scopus
Держатели документа:
Winogradsky Institute of Microbiology, Russian Academy of Sciences, pr. 60-letiya Oktyabrya, Moscow, 117312, Russian Federation
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 36, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Savvichev, A.S.; Rusanov, I.I.; Rogozin, D.Yu.; Zakharova, E.E.; Lunina, O.N.; Bryantseva, I.A.; Yusupov, S.K.; Pimenov, N.V.; Degermendzhi, A.G.; Ivanov, M.V.

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^a621.01.94.61^2VINITI
С 63

Сообщество аноксигенных фототрофных бактерий озера Шира (Хакасия) [Текст] : научное издание / О. Н. Лунина [и др.] // Микробиология. - 2007. - Т. 76, N 4. - С. 533-544 . - ISSN 0026-3656

ГРНТИ

62.01.94

РУБ 621.01.94.61
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
: 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Лунина, О.Н.; Брянцева, И.А.; Акимов, В.Н.; Русанов, И.И.; Баринова, Е.С.; Лысенко, А.М.; Рогозин, Д.Ю.; Пименов, Н.В.

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Anoxygenic phototrophic bacterial community of Lake Shira (Khakassia) / O. N. Lunina [et al.] // Microbiology. - 2007. - Vol. 76, Is. 4. - P469-479, DOI 10.1134/S0026261707040133 . - ISSN 0026-2617
Кл.слова (ненормированные):
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.

Scopus
Держатели документа:
Winogradsky Institute of Microbiology, Russian Academy of Sciences, pr. 60-letiya Oktyabrya 7, k. 2, Moscow, 117312, Russian Federation
Skryabin Institute of Microbial Biochemistry and Physiology, Russian Academy of Sciences, Pushchino
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Lunina, O.N.; Bryantseva, I.A.; Akimov, V.N.; Rusanov, I.I.; Barinova, E.S.; Lysenko, A.M.; Rogozin, D.Yu.; Pimenov, N.V.

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Микробное сообщество хемоклина меромиктического озера Шунет (Хакасия, Россия) в период летней стратификации [Текст] : научное издание / Д. Ю. Рогозин [и др.] // Микробиология. - 2010. - Т. 79, № 2. - С. 277-285 . - ISSN 0026-3656

ГРНТИ

34.35.33

Рубрики:
Гидробиология--Солоноватые меромиктические озера
Микробиология
Кл.слова (ненормированные):
хемоклин -- бактериальное сообщество -- меромиктическое озеро -- пурпурные серные бактерии -- зеленые серные бактерии -- цианобактерии -- фитофлагелляты
Аннотация: Пространственно-временная оргaнизация бактериального сообщества хемоклина стратифицированного меромиктического озера Шунет (Республика Хакасия, Россия) была исследована в период с мая по сентябрь 2005 г. с помощью микрокопии, анализа фотосинтетических пигментов и методом ПЦР/ДГГЭ с последующим секвенированием фрагментов 16S рДНК. Образцы отбирали с помощью многошприцевого пробоотборника с шагом 5 см по глубине. Показано, что в исследованный период существенных изменений в бактериальном сообществе хeмоклина не происходило, по крайней мере, среди распознаваемых форм. Во все даты исследований в хемоклине доминировали пурпурные серные бактерии, родственные Lamprocystis purpurea (Chromatiaceae). Показано, что с применением универсальных бактериальных праймеров метод ДГГЭ дает ту же качественную картину распределения доминирующих видов, что и микроскопия. Россия, Инт- биофизики СО РАН, Красноярск (E-mail:rogozin@ibp.ru)

Держатели документа:
Институт биофизики СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Рогозин, Денис Юрьевич; Трусова, Мария Юрьевна; Хромечек, Е.Б.; Дегерменджи, Андрей Георгиевич

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Microbial community of the chemocline of the meromictic Lake Shunet (Khakassia, Russia) during summer stratification / D. Y. Rogozin [et al.] // Microbiology. - 2010. - Vol. 79, Is. 2. - P253-261, DOI 10.1134/S0026261710020189 . - ISSN 0026-2617
Кл.слова (ненормированные):
Chemocline -- Cyanobacteria -- Green sulfur bacteria -- Meromictic lakes -- Microstratification -- PCR-DGGE -- Phytoflagellates -- Purple sulfur bacteria -- Bacteria (microorganisms) -- Chlorobi -- Chromatiaceae -- Cryptomonas -- Cyanobacteria -- Lamprocystis purpurea -- Phytomastigophorea -- Proteobacteria -- Synechococcus
Аннотация: The spatio-temporal organization of the bacterial community inhabiting the chemocline of the stratified meromictic Lake Shunet (Khakassia, Russia) was investigated from May to September 2005 by means of microscopy, analysis of photosynthetic pigments, and PCR-DGGE with subsequent 16S rDNA analysis. The samples were collected with a multisyringe stratification sampler, sampling being performed every 5 cm. It was demonstrated that, during the period of investigation, there were no large changes in the bacterial community of the chlemocline, at least among the detected forms. During the whole period of study, purple sulfur bacteria related to Lamprocystis purpurea (Chromatiaceae) were predominant in the chemocline. Beneath the layer of purple bacteria, green sulfur bacteria were revealed that were phylogenetically distant from strain ShNPel02, which was previously isolated from this lake. Development of phytoflagellates of the genus Cryptomonas was observed in the upper zone of the chemocline. In the chemocline of Lake Shunet, the numbers of picoplankton cyanobacteria of the genus Synechococcus increased from May to September. It was demonstrated that the application of universal bacterial primers for DGGE resulted in the same qualitative distributional pattern of predominant species as microscopic studies. В© Pleiades Publishing, Ltd., 2010.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, pr. Svobodnyi, 79, Krasnoyarsk 660041, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Rogozin, D.Y.; Trusova, M.Y.; Khromechek, E.B.; Degermendzhy, A.G.

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