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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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Bioluminescent enzyme inhibition-based assay for the prediction of toxicity of pollutants in urban soils / E. M. Kolosova, O. S. Sutormin, L. V. Stepanova [et al.] // Environ. Technol. Innov. - 2021. - Vol. 24. - Ст. 101842, DOI 10.1016/j.eti.2021.101842. - Cited References:46. - This work was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Region, Russia, and Krasnoyarsk Regional Foundation for Supporting Scientific and Technological Activities, Russia [grant number 18-47-240005] in the field of statistical analysis and interpretation of the data; and the work related to the sample collection was supported by the Ministry of Science and Higher Education of the Russian Federation [grant number FSRZ-2020-0006]. . - ISSN 2352-1864

РУБ Biotechnology & Applied Microbiology + Engineering, Environmental
Рубрики:
FLUORIDE
   BIOASSAYS
   POLLUTION
   METALS
   WATER
Кл.слова (ненормированные):
Urbostratozems -- Soil pollution -- Industrial contamination -- Bioassay -- Bioluminescence
Аннотация: There is a need for rapid simple and informative environmental assessment methods. The present investigation is aimed at assessing the possibility of using the combined enzyme system of luminescent bacteria: NAD(P)H:FMN-oxidoreductase + luciferase (Red + Luc) for predicting the potential toxicity of industrial urbostratozems sampled in the city of Krasnoyarsk. Three groups of urbostratozems polluted with fluorine, arsenic and lead, were tested by the methods of chemical analysis and enzymatic bioassay. Only the assessment of the arsenic-contaminated soil samples showed the dependence between the reduced activity of the enzyme system and the arsenic concentration variations. The results reveal that the sensitivity of the Red + Luc enzyme system to the soil pollutants depends on the properties of the studied soil samples. Moreover, the solubility of lead in the soil samples affects the accuracy of the enzymatic bioassays for soil toxicity testing. The results of the enzymatic bioassay of the fluoride-contaminated soil samples are ambiguous. The obtained data show the relevance of the sample preparation during integral bioassays. In addition, soil properties should be taken into account as well. The current study emphasizes the importance of conducting chemical and biological testing as a combined set to obtain comprehensive information about the anthropogenic load. (C) 2021 Elsevier B.V. All rights reserved.

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Держатели документа:
Siberian Fed Univ, Dept Biophys, 79 Svobodny St, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Krasnoyarsk Agr Res Inst, Fed Res Ctr Krasnoyarsk Sci Ctr Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Aquat & Terr Ecosyst, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Photobiol Lab, Inst Biophys, Fed Res Ctr `Krasnoyarsk Sci Ctr Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Kolosova, Elizaveta M.; Sutormin, Oleg S.; Stepanova, L. V.; Shpedt, Aleksandr A.; Rimatskaya, N. V.; Sukovataya, Irina E.; Kratasyuk, Valentina A.; Russian Foundation for Basic Research, the Government of the Krasnoyarsk Region, Russia; Krasnoyarsk Regional Foundation for Supporting Scientific and Technological Activities, Russia [18-47-240005]; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0006]

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