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Content of metals in compartments of ecosystem of a Siberian pond [Text] / M. I. Gladyshev [et al.] // Arch. Environ. Contam. Toxicol. - 2001. - Vol. 41, Is. 2. - P. 157-162. - Cited References: 26 . - ISSN 0090-4341

РУБ Environmental Sciences + Toxicology
Рубрики:
CHIRONOMUS-RIPARIUS MEIGEN
   NELSON RIVER SYSTEM
   AQUATIC MACROPHYTES
   LARVAE DIPTERA
   HEAVY-METAL
   COPPER
   LEAD
   SEDIMENTS
   CADMIUM
   MANITOBA
Аннотация: During three field seasons (June-September) of 1997-99 contents of Na, K, Ca, Mg, Fe, Mn, Zn, Cu, Al, Cr, Ni, Cd, and Pb were determined in compartments of ecosystem (surrounding soils, bottom sediments, water, zoobenthos, macrophytes, and fish) of a fish and recreation pond situated at the edge of Krasnoyarsk City (Siberia, Russia). Contents of most parts of metals in soils, water, and macrophytes significantly correlated with each other. As concluded, their contents were determined by natural, general, geochemical peculiarities of the region. Heavy metals, contents of which were higher than federal upper limits of concentration, were revealed. In muscles of fish with different feeding spectra-crucian and perch-concentrations of some metals differed significantly; correlation graphs for metals also had different structures. Comparison of our data with those on diverse aquatic ecosystems of Siberia, Europe, North America, and China published in the last decade was carried out. It was concluded that a distribution of heavy metals in the compartments of an aquatic ecosystem presently have to be determined for each particular water body until general regularities are discovered.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
Krasnoyarsk State Agr Univ, Krasnoyarsk 660049, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660042, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gladyshev, M.I.; Gribovskaya, I.V.; Moskvicheva, A.V.; Muchkina, E.Y.; Chuprov, S.M.; Ivanova, E.A.

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Methanolobus halotolerans sp. nov., isolated from the saline Lake Tus in Siberia / Y. Shen, S. C. Chen, M. C. Lai [et al.] // Int. J. Syst. Evol. Microbiol. - 2020. - Vol. 70, Is. 10. - P5586-5593, DOI 10.1099/ijsem.0.004453. - Cited References:38. - This work was supported by grants from the Ministry of Education, Taiwan, ROC under the ATU plan (to M.C.L.), by the thematic project funding of Taiwan-Russian Joint Project (NSC99-2923-B-001-001-MY3 and NSC102-2923-B-001-004 to S.L.T.), by the Ministry of Science and Technology (MOST103/104/105/106/107-3113-M-005-001 to M.C.L.), Taiwan and the Russian Foundation for Basic Research, Grant No. 14-04-01060-a (to D.Y.R. and A.G.D.). . - ISSN 1466-5026. - ISSN 1466-5034

РУБ Microbiology
Рубрики:
TAIWANENSIS SP NOV.
   METHYLOTROPHIC METHANOGEN
   SEDIMENTS
   ACCURATE
   DNA
Аннотация: A halotolerant, psychrotolerant and methylotrophic methanogen, strain SY-01(T), was isolated from the saline Lake Tus in Siberia. Cells of strain SY-01(T) were non-motile, cocci and 0.8-1.0 mu m in diameter. The only methanogenic substrate utilized by strain SY-01(T) was methanol. The temperature range of growth for strain SY-01(T) was from 4 to 40 degrees C and the optimal temperature for growth was 30 degrees C. The pH range of growth was from pH 7.2 to 9.0, with optimal growth at pH 8.0. The NaCl range of growth was 0-1.55 M with optimal growth at 0.51 M NaCl. The G+C content of the genome of strain SY-01(T) was 43.6 mol% as determined by genome sequencing. Phylogenetic analysis revealed that strain SY-01(T) was most closely related to Methanolobus zinderi SD1(T) (97.3% 16S rRNA gene sequence similarity), and had 95.5-97.2 % similarities to other Methanolobus species with valid names. Genome relatedness between strain SY-01(T) and DSM 21339(T) was computed using average nucleotide identity and digital DNA-DNA-hybridization, which yielded values of 79.7 and 21.7 %, respectively. Based on morphological, phenotypic, phylogenetic and genomic relatedness data presented here, it is evident that strain SY-01(T) represents a novel species of the genus Methanolobus, and the name Methanolobus halotolerans sp. nov. is proposed. The type strain is SY-01(T) (=BCRC AR10051(T)=NBRC 113166(T)=DSM 107642(T)).

WOS
Держатели документа:
Natl Chung Hsing Univ, Dept Life Sci, Taichung, Taiwan.
Sanming Univ, Sch Resources & Chem Engn, Sanming 365004, Fujian, Peoples R China.
Sanming Univ, Fujian Prov Key Lab Resources & Environm Monitori, Sanming 365004, Fujian, Peoples R China.
Natl Chung Hsing Univ, Agr Biotechnol Ctr, Taichung, Taiwan.
Acad Sinica, Biodivers Res Ctr, Taipei, Taiwan.
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Shen, Y.a.; Chen, Sheng-Chung; Lai, Mei-Chin; Huang, Hsing-Hua; Chiu, Hsiu-Hui; Tang, Sen-Lin; Rogozin, Denis Yu; Degermendzhy, Andrey G.; Ministry of Education, Taiwan, ROC under the ATU planMinistry of Education, Taiwan; thematic project funding of Taiwan-Russian Joint Project [NSC99-2923-B-001-001-MY3, NSC102-2923-B-001-004]; Ministry of Science and Technology, TaiwanMinistry of Science and Technology, Taiwan [MOST103/104/105/106/107-3113-M-005-001]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [14-04-01060-a]

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Long-Chain Alkenones in Saline Meromictic Lakes of the North Minusinsk Depression (Southern Siberia): First Knowledge and Possible Correlation with Water-Level Dynamics / D. Y. Rogozin, A. O. Bulkhin, V. V. Zykov [et al.] // Contemp. Probl. Ecol. - 2020. - Vol. 13, Is. 6. - P643-655, DOI 10.1134/S199542552006013X. - Cited References:37. - This work was supported by the Russian Foundation for Basic Research (project no. 19-05-00428) and was jointly funded by the Russian Foundation for Basic Research, Government of Krasnoyarsk Krai and Krasnoyarsk Krai Foundation of Science under the scientific project "Bottom Sediments of Lake Uchum (Krasnoyarsk Krai) as a Source of Information for the Paleoclimate and Prediction of Healing Properties of a Water Body," project no. 18-45-243002 r_mol_a. . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
TEMPERATURE
   SHIRA
   PALEOTEMPERATURE
   CALIBRATION
   SEDIMENTS
   ATLANTIC
Кл.слова (ненормированные):
long-chain alkenones -- haptophyte algae -- meromictic lakes -- water level -- climate -- paleolimnological reconstruction -- 18S rRNA gene -- metagenomics
Аннотация: Long-chain alkenones (LCAs)-lipides produced by some microalgae of the Haptophyta group in seas and continental water bodies-are promising paleomarkers of climate changes because they are well-preserved in bottom sediments. The hydrocarbon chain and the degree of unsaturation of double bonds of this class of lipides can vary depending on habitat conditions of their producers. For the first time, we have discovered LCAs in the bottom sediments of two saline meromictic lakes Shira and Uchum located in arid steppes of southern Siberia (the North Minusinsk Depression) and estimated the distribution of their total content, length, and the degree of unsaturation. The highly abundant population of producers of LCAs-haptophyte algae of the genus Isochrysis (Haptophyta)-is revealed in the water column of Lake Uchum. It is shown that the species composition of the haptophyte algae and composition of the LCAs in the lakes under study are similar to those in saline stratified lakes of North America (Saskatchewan, Canada) with a similar climate and salt composition. The abundance of the C37:4 alkenone in the bottom sediments in the last 100 years reflected the variations in lake salinity caused by the documented changes in the water level. In this way, it is shown that the LCAs may be used as a paleomarker of climate-driven changes in the water level of the saline lakes in southern Siberia.

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Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Sobolev Inst Geol & Mineral, Siberian Branch, Novosibirsk 630090, Russia.
Russian Acad Sci, Inst Chem Biol & Fundamental Med, Siberian Branch, Novosibirsk 630090, Russia.

Доп.точки доступа:
Rogozin, D. Y.; Bulkhin, A. O.; Zykov, V. V.; Ivanova, E. A.; Darin, A., V; Kalugin, I. A.; Baturina, O. A.; Kabilov, M. R.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-05-00428, 18-45-243002 r_mol_a]; Government of Krasnoyarsk Krai [18-45-243002 r_mol_a]; Krasnoyarsk Krai Foundation of Science [18-45-243002 r_mol_a]

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Transport of Artificial Radionuclides over Long Distances Downstream along the Yenisei River during the 1966 Extreme Flood Event / A. Y. Bolsunovsky, D. V. Dementyev, V. I. Vakhrushev // Dokl. Earth Sci. - 2021. - Vol. 498, Is. 2. - P514-518, DOI 10.1134/S1028334X21060052. - Cited References:12. - This study was supported in part by the Russian Foundation for Basic Research, project no. 18-44-240001. . - ISSN 1028-334X. - ISSN 1531-8354

РУБ Geosciences, Multidisciplinary
Рубрики:
SEDIMENTS
ELEMENTS
Кл.слова (ненормированные):
bottom sediments -- the Yenisei River -- extreme flood event -- artificial -- radionuclides -- dating of layers
Аннотация: Long-term research has revealed layers with abnormally high concentrations of Cs-137 in bottom sediments and alluvial soils in the floodplain of the Yenisei River at various distances (as far as 820 km) downstream from the radioactive discharge point of the Mining-and-Chemical Combine (MCC) of Rosatom. The highest activity concentration of Cs-137 in these layers reached 26 000 Bq/kg, which was higher than the Cs-137 maximum at the well-known radioactive anomaly in the Yeniseisk riparian zone (330 km downstream from the MCC), which was formed during the 1966 extreme flood event. The radionuclide composition and the Cs-137/Eu-152 and Cs-137/Co-60 ratios in the anomalous layers studied were the same as those at the Yeniseisk anomalous site, suggesting that they had the same origin by the transport of sediments from the MCC area during the 1966 extreme flood event. The transport of radioactive bottom sediments over long distances from the MCC discharge point downstream along the Yenisei River during the 1966 extreme flood event may continue to pose a possible radiation hazard to the river ecosystem and residents of riverside villages.

WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Biophys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Bolsunovsky, A. Ya.; Dementyev, D. V.; Vakhrushev, V. I.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-44-240001]

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