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Transfer of xenobiotics through cell membranes of luminous bacteria / S. E. Medvedeva // Luminescence. - 1999. - Vol. 14, Is. 5. - P267-270 . - ISSN 1522-7235
Кл.слова (ненормированные):
Luminous bacteria -- Toxicant -- Ultrastructure -- bacterial DNA -- edetic acid -- toluene -- xenobiotic agent -- article -- cell membrane -- DNA damage -- drug effect -- luminescence -- metabolism -- Photobacterium -- sensitivity and specificity -- transport at the cellular level -- ultrastructure -- Vibrio -- Biological Transport -- Cell Membrane -- DNA Damage -- DNA, Bacterial -- Edetic Acid -- Luminescence -- Photobacterium -- Sensitivity and Specificity -- Toluene -- Vibrio -- Xenobiotics
Аннотация: The influence of some chemical substances on luminous bacteria was studied to elucidate the interrelation between the xenobiotics action on bacterial luminescence and cell ultrastructure. Such substances as quinones, phenols, chlorides of heavy metals (in concentrations of substances inhibiting luminescence by 50%) resulted in damaging effects upon bacteria: a lot of cells had damage of membranes due to changes in their permeability. It was found that the high concentration of EDTA and toluene decreased the luminescence and caused the condensation of DNA-fibrils and the cell damage after long-term and short-term action. The low concentration of EDTA and toluene did not decrease the bacterial luminescence; the noticeable damage of cell membranes did not take place during short-term treatment. However, the long action of these substances changed the membrane permeability resulting in increased sensitivity of bacterial luminescence to some toxic substances. Copyright В© 1999 John Wiley & Sons, Ltd.

Scopus
Держатели документа:
Institute of Biophysics SB RAS, 660036 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Medvedeva, S.E.

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BIOLUMINESCENT ANALYSIS - THE ACTION OF TOXICANTS - PHYSICAL-CHEMICAL REGULARITIES OF THE TOXICANTS EFFECTS [Text] / N. S. KUDRYASHEVA, V. A. KRATASYUK, P. I. BELOBROV // Anal. Lett. - 1994. - Vol. 27, Is. 15. - P2931-2947. - Cited References: 13 . - 17. - ISSN 0003-2719

РУБ Chemistry, Analytical

Кл.слова (ненормированные):
BACTERIAL LUCIFERASE BIOTEST -- FOREIGN COMPOUNDS -- ENERGY OF ELECTRON EXCITED STATES LEVEL -- REDOX POTENTIAL -- REDUCING OF BIOLUMINESCENT INTENSITY -- INDUCTION PERIOD -- TIME OF MAXIMUM LIGHT INTENSITY
Аннотация: The physical-chemical regularities of aromatic compounds' effects in luciferase to toxicity biotesting have been studied, The structures and physical-chemical characteristics of the toxicants and of the bioluminescent emitter were taken into account. The inhibition constants of bioluminescence intensity (I) were calculated and interpreted from the viewpoint of the energy (electron) transfer processes. The induction period (P) and the increase of the rime of the maximum light intensity (t(M)) which take place in the quinones presence, have been shown to deal with hydrogen transfer processes. The values of I, P and t(M) have been shown to be connected with a size of the quinones' aromatic and aliphatic parts, P- and t(M)-dependencies on quinone's redox potential have been demonstrated.
: 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
KUDRYASHEVA, N.S.; KRATASYUK, V.A.; BELOBROV, P.I.

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Effect of low-level alpha-radiation on bioluminescent assay systems of various complexity [Text] / T. V. Rozhko [et al.] // Photochem. Photobiol. Sci. - 2007. - Vol. 6, Is. 1. - P67-70, DOI 10.1039/b614162p. - Cited References: 52 . - 4. - ISSN 1474-905X

РУБ Biochemistry & Molecular Biology + Biophysics + Chemistry, Physical
Рубрики:
LOW-DOSE RADIATION
   IRRADIATION
   TOXICITY
   QUINONES
   HORMESIS
   PHENOLS
Аннотация: This study addresses the effects of low-level alpha-radiation on bioluminescent assay systems of different levels of organization: in vivo and in vitro. Three bioluminescent assay systems are used: intact bacteria, lyophilized bacteria, and bioluminescent system of coupled enzyme reactions. Solutions of Am-241(NO3)(3) are used as a source of alpha-radiation. It has been shown that activation processes predominate in all the three bioluminescent assay systems subjected to short-term exposure (20-55 h) and inhibition processes in the systems subjected to longer-term exposure to radiation. It has been found that these effects are caused by the radiation component of Am-241(3+) impact. The intensity of the Am-241(3+) effect on the bioluminescent assay systems has been shown to depend on the Am-241(3+) concentration, level of organization and integrity of the bioluminescent assay system. The bioluminescent assay systems in vivo have been found to be highly sensitive to Am-241(3+) (up to 10(-17) M).

Держатели документа:
SB RAS, Inst Biophys, Krasnoyarsk 660036, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Rozhko, T.V.; Kudryasheva, N.S.; Kuznetsov, A.M.; Vydryakova, G.A.; Bondareva, L.G.; Bolsunovsky, A.Y.

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Patterns of inhibition of bacterial bioluminescence in vitro by quinones and phenols - Components of sewage / N. S. Kudryasheva [et al.] // Biophysics. - 1994. - Vol. 39, Is. 3. - P. 441-451 . - ISSN 0006-3509
Аннотация: Quenching of bioluminescence of the bienzyme system bacterial luciferase-NAD В· H:FMN-oxidoreductaseвЂ вЂ NADВ·H is reduced nicotinamide adenine dinucleotide and FMN is flavine manonucleotide. is considered in terms of the patterns of intermolecular transfer of an electron and hydrogen between donor (bioluminescent centre) and acceptor (compound to be analysed) taking into account the structure of the acceptor molecule. The link between the induction period of bioluminescence and the redox potential of the quinone-acceptor has been confirmed. It is shown that the induction period and the time of passage to the bioluminescence maximum in the presence of quinones are determined by the size of the aromatic and aliphatic fragments of the quinone molecule; the intensity of bioluminescence depends on the efficiency of the processes of intermolecular electron transfer (donor-acceptor) and the competition of the compound being analysed with aldehyde for the binding site on luciferase. В© 1994.

Scopus
Держатели документа:
Institute of Biophysics, the Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Irkutsk State University Biology Research Institute, Irkutsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kudryasheva, N.S.; Shalayeva, Ye.V.; Zadorozhnaya, Ye.N.; Kratasyuk, V.A.; Balayan, A.E.; Stom, D.I.

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Development of bioluminescent bioindicators for analysis of environmental pollution [Text] / N. . Kudryasheva [et al.] // Field Anal. Chem. Technol. - 1998. - Vol. 2, Is. 5. - P. 277-280, DOI 10.1002/(SICI)1520-6521(1998)2:5277::AID-FACT43.0.CO;2-P. - Cited References: 17 . - ISSN 1086-900X

РУБ Chemistry, Analytical + Environmental Sciences + Instruments & Instrumentation

Кл.слова (ненормированные):
biotest -- bioluminescence -- enzymes -- environmental monitoring
Аннотация: The influence of several suites of pollutants (metallic salts, quinones, and phenols) on bacterial bioluminescence in vivo and in vitro (five test systems) was investigated. The sensitivity of bioluminescence to the different pollutants was evaluated, and inhibition constants were measured. The data obtained were shown to correlate with the physical and chemical characteristics of the substances and the structure of the bioluminescent systems. It has been found that three bioluminescent tests (water-soluble enzyme systems, immobilized enzyme systems, and bioluminescent bacteria) show higher sensitivity to pollutants and cover all types of widespread contamination. These tests were chosen as a set of bioluminescent assays for the detection of pollutants. (C) 1998 John Wiley & Sons, Inc.

WOS
Держатели документа:
RAS, Inst Biophys, SB, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kudryasheva, N...; Kratasyuk, V...; Esimbekova, E...; Vetrova, E...; Nemtseva, E...; Kudinova, I...

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The influence of quinones and phenols on the triple NAD(H)-dependent enzyme systems [Text] / N. S. Kudryasheva [et al.] // Chemosphere. - 1999. - Vol. 38, Is. 4. - P. 751-758, DOI 10.1016/S0045-6535(98)00218-5. - Cited References: 7 . - ISSN 0045-6535

РУБ Environmental Sciences

Аннотация: Kinetics of the triple bioluminescent enzyme system: alcohol dehydrogenase - NADH:FMN-oxidoreductase - luciferase in the presence of quinones and phenols has been studied. The correspondence between the bioluminescent kinetic parameters, redox potentials and concentrations of the quinones and phenols has been estimated. The substances have been shown to change bioluminescent kinetics through moving off the NAD(+)/NADH balance in the enzyme processes. This system is proposed to be used as enzymatic biotest in ecological monitoring. (C) 1998 Elsevier Science Ltd. All rights reserved.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia
Irkutsk State Univ, Biol Res Inst, Irkutsk 664003, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kudryasheva, N.S.; Kudinova, I.Y.; Esimbekova, E.N.; Kratasyuk, V.A.; Stom, D.I.

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Effects of quinones on NADH-dependent enzymatic bioluminescent systems [Text] / N. S. Kudryasheva [et al.] // Appl. Biochem. Microbiol. - 2000. - Vol. 36, Is. 4. - P. 409-413, DOI 10.1007/BF02738052. - Cited References: 13 . - ISSN 0003-6838

РУБ Biotechnology & Applied Microbiology + Microbiology

Аннотация: The effects of a number of quinones on the bioluminescence characteristics of a three-component enzymatic system containing alcohol dehydrogenase, bacterial luciferase, and NADH-FMN oxidoreductase were studied to find the most sensitive kinetic parameters of the system intended to be used in biological testing. Both direct and back reactions catalyzed by alcohol dehydrogenase were studied in the presence and in the absence of quinones. The kinetic parameters of the bioluminescent system were found to depend on the redox potentials and concentrations of quinones. The quinone-induced effects were shown to be associated with changes in the NAD(+)/NADH ratio in the chain of NADH-dependent enzymes, The three-enzyme system based on alcohol dehydrogenase is suggested as a bioluminescence test for ecological monitoring of waste water.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Div, Krasnoyarsk 660036, Russia
Irkutsk State Univ, Irkutsk 664003, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kudryasheva, N.S.; Esimbekova, E.N.; Kudinova, I.Y.; Kratasyuk, V.A.; Stom, D.I.

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Bioluminescence assays: Effects of quinones and phenols [Text] / N. . Kudryasheva [et al.] // Ecotox. Environ. Safe. - 2002. - Vol. 53, Is. 2. - P. 221-225, DOI 10.1006/eesa.2002.2214. - Cited References: 18 . - ISSN 0147-6513

РУБ Environmental Sciences + Toxicology

Кл.слова (ненормированные):
bioluminescence assays -- quinones -- phenols
Аннотация: The influence of a series of quinones and phenols on bacterial bioluminescence systems was investigated. Three bioluminescence systems used in ecological monitoring were compared: (1) water-soluble; (2) immobilized in starch gel coupled enzyme systems: NADH:FMN-oxidoreductase-luciferase; (3) luminescent bacteria. Bioluminescence inhibition constants of quinones and phenols and bioluminescence induction periods were compared. These kinetic parameters are proportional to quinone concentrations and depend on the quinone redox potential. Different effects of the substances are related to structure and properties of the bioluminescence systems. The set of bioluminescence assays for quinones and phenols monitoring should include two bioluminescence systems: 1 (or 2) and 3. (C) 2002 Elsevier Science (USA).

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
Irkutsk State Univ, Biol Res Inst, Irkutsk 664003, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kudryasheva, N...; Vetrova, E...; Kuznetsov, A...; Kratasyuk, V...; Stom, D...

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