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Spatial biodiversity of bacteria along the largest Arctic river determined by next-generation sequencing [Text] / O. V. Kolmakova [et al.] // FEMS Microbiol. Ecol. - 2014. - Vol. 89, Is. 2. - P442-450, DOI 10.1111/1574-6941.12355. - Cited References: 36. - This work was supported by the Attracting Leading Scientists to Russian Educational Institutions Program of the Russian Federation, agreement 11.G34.31.0014, and by the project G-1 of Siberian Federal University, carried out according to Federal tasks of the Ministry of Education and Science of Russian Federation. . - ISSN 0168-6496. - ISSN 1574-6941

РУБ Microbiology
Рубрики:
DISSOLVED ORGANIC-MATTER
   INLAND WATERS
   CARBON
   BACTERIOPLANKTON
   COMMUNITY
   GREENGENES
   ECOSYSTEM
   RESERVOIR
   PATTERNS
   PRIMERS
Кл.слова (ненормированные):
bacterial community -- diversity -- 16S rRNA gene -- Yenisei River
Аннотация: The biodiversity of bacterial communities along the Yenisei River at section c. 1800 km was studied using next-generation sequencing of 16S rRNA genes and common biodiversity indices. Overall, 3022 unique operational taxonomic units were identified. Actinobacteria and Proteobacteria were the dominant phyla at all sampling sites. The highest alpha-diversity values were found in the middle section of the studied river. The beta-diversity of bacterial assemblages in the river was related to the surrounding landscape (biome): three distinctly different bacterial assemblages occurred in sections of the river, situated in mountain taiga, plain taiga and in a region of permafrost, covered by forest-tundra and tundra. Tributaries arising from these different landscapes likely contributed substantially to the variations of Yenisei bacterial communities. In contrast to a prediction of the river continuum concept, the proportion of photoautotrophic Cyanobacteria in bacterial assemblages did not increase downstream, but peaked at the middle section.

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Держатели документа:
[Kolmakova, Olesya V.
Gladyshev, Michail I.] Siberian Fed Univ, Krasnoyarsk, Russia
[Kolmakova, Olesya V.
Gladyshev, Michail I.
Trusova, Maria Y.] Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia
[Rozanov, Alexey S.
Peltek, Sergey E.] Russian Acad Sci, Inst Cytol & Genet, Siberian Branch, Novosibirsk 630090, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kolmakova, O.V.; Gladyshev, M.I.; Rozanov, A.S.; Peltek, S.E.; Trusova, M.Y.; Attracting Leading Scientists to Russian Educational Institutions Program of the Russian Federation [11.G34.31.0014]; Siberian Federal University

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Colony structure of a consortium of nitrifying bacteria [Text] / A. P. Puzyr' [et al.] // Microbiology. - 2001. - Vol. 70, Is. 1. - P. 84-90, DOI 10.1023/A:1004853123326. - Cited References: 6 . - ISSN 0026-2617

РУБ Microbiology
Рубрики:
COMMUNITY
Кл.слова (ненормированные):
electron microscopy -- colony architectonics -- nitrifying bacteria
Аннотация: Colonies produced by a consortium of nitrifying bacteria were studied using fight and electron microscopy. The colonies were obtained by direct plating of inoculum from a two-stage nonsterile chemostat fermenter and by repeatedly passing the microbial community of the fermenter through selective media containing ammonium or nitrite. The colonies studied can be characterized by a specific combination of six types of cells differing in their ultrastructure and spatial location within the colony. The types of cells occurring within a given colony were found to depend on the nitrogen compound present in the medium. As a result of our study, morphological features of colonial bacterial communities were identified. The proposed approach can be viewed as a method to describe microbial associations and communities.

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Держатели документа:
Russian Acad Sci, Siberian Div, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Puzyr', A.P.; Mogil'naya, O.A.; Gurevich, Y.L.; Babkina, E.A.

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Antibiotic resistance of heterotrophic bacteria in Shira lake: natural and anthropogenic impacts [Text] / T. I. Lobova, Y. V. Barkhatov, L. Y. Popova // Aquat. Microb. Ecol. - 2002. - Vol. 30, Is. 1. - P. 11-18, DOI 10.3354/ame030011. - Cited References: 33 . - ISSN 0948-3055

РУБ Ecology + Marine & Freshwater Biology + Microbiology
Рубрики:
MARINE-BACTERIA
   DIVERSITY
   POLLUTION
   COMMUNITY
   PATTERNS
   PLANTS
Кл.слова (ненормированные):
heterotrophic bacteria -- halotolerance -- antibiotic resistance -- anthropogenic load -- brackish lake -- mathematical modeling
Аннотация: Studies were conducted to investigate the antibiotic resistance of freshwater, halophile and moderate halotolerant bacteria isolated from the nearshore part of Shira lake, which is affected by the activity of a health resort, and from the central part of the lake in the summer (June to August) of 1999. It has been shown that the allochthonous microflora, which is brought into the lake with the resort effluent in mid-summer, is the anthropogenic factor contributing to an increase in the number of freshwater bacteria that feature multiple antibiotic resistance in the central part of the lake. It has been found that resistance to ampicillin of freshwater and halophile heterotrophic bacteria is related to the increase in the biomass of blue-green and green algae in the central part of Shira lake between mid-July and the end of August. A mathematical model has been constructed to describe the dynamics of the antibiotic resistance of heterotrophic bacteria in the close-to-resort and the central parts of Shira lake under natural and anthropogenic impacts.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Ctr Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Lobova, T.I.; Barkhatov, Y.V.; Popova, L.Y.

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Development and morphological features of biofilms formed by transgenic and wild type strains of Bacillus subtilis [Text] / O. A. Mogilnaya, T. Y. Krylova, L. Y. Popova // Microbiol. Res. - 2003. - Vol. 158, Is. 4. - P. 327-335, DOI 10.1078/0944-5013-00212. - Cited References: 17 . - ISSN 0944-5013

РУБ Microbiology
Рубрики:
ANTIBIOTIC-RESISTANCE
MICROBIAL BIOFILMS
COMMUNITY
Кл.слова (ненормированные):
Bacillus subtilis -- biofilms -- transgenic microorganisms -- electron microscopy
Аннотация: The study addressed the ability of the transgenic strain (TM) B. subtilis 2335/pBMB 105 (Km(r)Inf(+)) to form biofilms on the surface of liquid media of various compositions, inoculated with vegetative cells and spores. The morphological features of these biofilms do not differ from those of the films formed by the recipient strain (WT) B. subtilis 2335 (Km(s)). However, the TM and the natural one differ in the dynamics of biofilm formation and the cellular composition of the films. Biofilms of the TM are formed earlier, develop at a higher rate, but decompose later than the films of the WT. When the medium is inoculated with vegetative cells, sporulation in the biofilms of both strains undergoes glucose repression; no such effect is observed when the medium is inoculated with spores. The TM does not form films when the medium is inoculated with spores and supplemented with glycerin and kanamycin.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Mogilnaya, O.A.; Krylova, T.Y.; Popova, L.Y.

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