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Ivshina IB, Kuyukina MS, Litvinenko LV, Golysheva AA, Kostrikina NA, Sorokin VV, Mulyukin AL. Bioaccumulation of molybdate ions by alkanotrophic Rhodococcus leads to significant alterations in cellular ultrastructure and physiology. Ecotoxicol Environ Saf 2024; 274:116190. [PMID: 38503110 DOI: 10.1016/j.ecoenv.2024.116190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 03/03/2024] [Accepted: 03/06/2024] [Indexed: 03/21/2024]
Abstract
Alkanotrophic Rhodococcus strains from the Regional Specialised Collection of Alkanotrophic Microorganisms (acronym IEGM, www.iegmcol.ru) were screened for accumulation and sorption of MoO42- ions. Morphological and ultrastructural changes observed in bacterial cells during their cultivation in the molybdenum-containing medium are described. The species peculiarities, growth substrate preferences, and other physiological features allowing for the efficient removal of molybdate ions from the culture medium are discussed. Bioinformatics analysis of genes and proteins responsible for resistance to and accumulation of molybdenum was carried out using the sequenced R. ruber IEGM 231 and other published Rhodococcus genomes. n-Hexadecane growing strains with high (up to 85 %) accumulative activity and resistance to elevated (up to 20.0 mM) molybdenum concentrations were selected, which can be used for bioremediation of environments co-contaminated with heavy metals and hydrocarbons. Transmission electron microscopy and energy dispersive X-ray spectroscopy (TEM-EDX) revealed the ability of Rhodococcus not only to accumulate, but also to chemically convert soluble toxic molybdenum into insoluble compounds detected in the form of electron-dense nanoparticles.
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Affiliation(s)
- Irina B Ivshina
- Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13a Lenin Street, Perm 614990, Russia; Perm State National Research University, 15 Bukirev Street, Perm 614068, Russia; Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences - Branch of the Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13 Goleva Street, Perm 614081, Russia.
| | - Maria S Kuyukina
- Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13a Lenin Street, Perm 614990, Russia; Perm State National Research University, 15 Bukirev Street, Perm 614068, Russia; Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences - Branch of the Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13 Goleva Street, Perm 614081, Russia
| | - Lyudmila V Litvinenko
- Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13a Lenin Street, Perm 614990, Russia; Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences - Branch of the Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13 Goleva Street, Perm 614081, Russia
| | | | - Nadezhda A Kostrikina
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, build. 2, 33, Leninsky prospect, Moscow 119071, Russia
| | - Vladimir V Sorokin
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, build. 2, 33, Leninsky prospect, Moscow 119071, Russia
| | - Andrey L Mulyukin
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, build. 2, 33, Leninsky prospect, Moscow 119071, Russia
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Tarasova EV, Luchnikova NA, Grishko VV, Ivshina IB. Actinomycetes as Producers of Biologically Active Terpenoids: Current Trends and Patents. Pharmaceuticals (Basel) 2023; 16:872. [PMID: 37375819 DOI: 10.3390/ph16060872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Terpenes and their derivatives (terpenoids and meroterpenoids, in particular) constitute the largest class of natural compounds, which have valuable biological activities and are promising therapeutic agents. The present review assesses the biosynthetic capabilities of actinomycetes to produce various terpene derivatives; reports the main methodological approaches to searching for new terpenes and their derivatives; identifies the most active terpene producers among actinomycetes; and describes the chemical diversity and biological properties of the obtained compounds. Among terpene derivatives isolated from actinomycetes, compounds with pronounced antifungal, antiviral, antitumor, anti-inflammatory, and other effects were determined. Actinomycete-produced terpenoids and meroterpenoids with high antimicrobial activity are of interest as a source of novel antibiotics effective against drug-resistant pathogenic bacteria. Most of the discovered terpene derivatives are produced by the genus Streptomyces; however, recent publications have reported terpene biosynthesis by members of the genera Actinomadura, Allokutzneria, Amycolatopsis, Kitasatosporia, Micromonospora, Nocardiopsis, Salinispora, Verrucosispora, etc. It should be noted that the use of genetically modified actinomycetes is an effective tool for studying and regulating terpenes, as well as increasing productivity of terpene biosynthesis in comparison with native producers. The review includes research articles on terpene biosynthesis by Actinomycetes between 2000 and 2022, and a patent analysis in this area shows current trends and actual research directions in this field.
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Affiliation(s)
- Ekaterina V Tarasova
- Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, 13A Lenina Str., 614990 Perm, Russia
| | - Natalia A Luchnikova
- Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, 13A Lenina Str., 614990 Perm, Russia
- Department of Microbiology and Immunology, Perm State University, 15 Bukirev Str., 614990 Perm, Russia
| | - Victoria V Grishko
- Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, 13A Lenina Str., 614990 Perm, Russia
| | - Irina B Ivshina
- Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, 13A Lenina Str., 614990 Perm, Russia
- Department of Microbiology and Immunology, Perm State University, 15 Bukirev Str., 614990 Perm, Russia
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Ivshina IB, Luchnikova NA, Maltseva PY, Ilyina IV, Volcho KP, Gatilov YV, Korchagina DV, Kostrikina NA, Sorokin VV, Mulyukin AL, Salakhutdinov NF. Biotransformation of (–)-Isopulegol by Rhodococcus rhodochrous. Pharmaceuticals (Basel) 2022; 15:ph15080964. [PMID: 36015112 PMCID: PMC9412403 DOI: 10.3390/ph15080964] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/29/2022] [Accepted: 08/01/2022] [Indexed: 11/16/2022] Open
Abstract
The ability of actinobacteria of the genus Rhodococcus to biotransform the monoterpenoid (–)-isopulegol has been established for the first time. R. rhodochrous strain IEGM 1362 was selected as a bacterium capable of metabolizing (–)-isopulegol to form new, previously unknown, 10-hydroxy (2) and 10-carboxy (3) derivatives, which may presumably have antitumor activity and act as respiratory stimulants and cancer prevention agents. In the experiments, optimal conditions were selected to provide the maximum target catalytic activity of rhodococci. Using up-to-date (TEM, AFM-CLSM, and EDX) and traditional (cell size, roughness, and zeta potential measurements) biophysical and microbiological methods, it was shown that (–)-isopulegol and halloysite nanotubes did not negatively affect the bacterial cells. The data obtained expand our knowledge of the biocatalytic potential of rhodococci and their possible involvement in the synthesis of pharmacologically active compounds from plant derivatives.
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Affiliation(s)
- Irina B. Ivshina
- Institute of Ecology and Genetics of Microorganisms of the Ural Branch of the Russian Academy of Sciences, Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences, 13 Golev Str., 614081 Perm, Russia;
- Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Str., 614990 Perm, Russia;
- Correspondence: ; Tel.: +7-(342)-2808114; Fax: +7-(342)-2809211
| | - Natalia A. Luchnikova
- Institute of Ecology and Genetics of Microorganisms of the Ural Branch of the Russian Academy of Sciences, Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences, 13 Golev Str., 614081 Perm, Russia;
- Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Str., 614990 Perm, Russia;
| | - Polina Yu. Maltseva
- Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Str., 614990 Perm, Russia;
| | - Irina V. Ilyina
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of the Siberian Branch of the Russian Academy of Sciences, 9 Lavrentiev Avenue, 630090 Novosibirsk, Russia; (I.V.I.); (K.P.V.); (Y.V.G.); (D.V.K.); (N.F.S.)
| | - Konstantin P. Volcho
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of the Siberian Branch of the Russian Academy of Sciences, 9 Lavrentiev Avenue, 630090 Novosibirsk, Russia; (I.V.I.); (K.P.V.); (Y.V.G.); (D.V.K.); (N.F.S.)
| | - Yurii V. Gatilov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of the Siberian Branch of the Russian Academy of Sciences, 9 Lavrentiev Avenue, 630090 Novosibirsk, Russia; (I.V.I.); (K.P.V.); (Y.V.G.); (D.V.K.); (N.F.S.)
| | - Dina V. Korchagina
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of the Siberian Branch of the Russian Academy of Sciences, 9 Lavrentiev Avenue, 630090 Novosibirsk, Russia; (I.V.I.); (K.P.V.); (Y.V.G.); (D.V.K.); (N.F.S.)
| | - Nadezhda A. Kostrikina
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, 60 let Oktyabrya, 7, bld. 2, 117312 Moscow, Russia; (N.A.K.); (V.V.S.); (A.L.M.)
| | - Vladimir V. Sorokin
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, 60 let Oktyabrya, 7, bld. 2, 117312 Moscow, Russia; (N.A.K.); (V.V.S.); (A.L.M.)
| | - Andrey L. Mulyukin
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, 60 let Oktyabrya, 7, bld. 2, 117312 Moscow, Russia; (N.A.K.); (V.V.S.); (A.L.M.)
| | - Nariman F. Salakhutdinov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of the Siberian Branch of the Russian Academy of Sciences, 9 Lavrentiev Avenue, 630090 Novosibirsk, Russia; (I.V.I.); (K.P.V.); (Y.V.G.); (D.V.K.); (N.F.S.)
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Buzmakov SA, Ivshina IB, Egorova DO, Khotyanovskaya YV, Andreev DN, Nazarov AV, Dziuba EA, Shestakov IE, Kuyukina MS, Elkin AA. Ecological criteria for assessing the content of petroleum hydrocarbons in the main soils of coniferous-deciduous forests and forest steppe. Environ Geochem Health 2021; 43:5099-5118. [PMID: 34117609 DOI: 10.1007/s10653-021-00998-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 06/02/2021] [Indexed: 06/12/2023]
Abstract
The effect of pollution of Albicluvisols/Retisols, Calcaric Leptosols, Luvic Phaeozems, Greyzamic Phaeozems and Folic Fluvisols with oil (Solovatovsky oil field, Perm region) added in amounts of 1, 2, 3 and 5 g oil/kg of soil on the organisms was studied in a model laboratory experiment. Oil addition showed phytotoxic effects on root length in Triticum aestivum L., Lepidium sativum L., Picea obovata Ledeb. and Pinus sylvestris L. in all soils. However, oil contamination of Calcaric Leptosols and Greyzamic Phaeozems led to growth stimulation in Picea obovata seedlings. A remarkable shift in the diversity and number of colony-forming units of heterotrophic and oil-oxidizing bacteria was detected in all soil types. The maximum decrease in biodiversity (45%) was noted for heterotrophic bacteria in Luvic Phaeozems. Aqueous extracts from all oil-contaminated soils had a toxic effect on Chlorella vulgaris Beijer, causing an increase in biomass by more than 30%, but did not show acute toxicity on Daphnia magna Straus. Oil addition in the range of 1-3 g oil/kg soil posed no environmental risk to human health. However, oil addition at 5 g oil/kg of soil led to an increase in the level of carcinogenic risk to children to the threshold values of acceptable risk and ranged from 0.95 × 10-4 for Greyzamic Phaeozems and Folic Fluvisols to 1.098 × 10-4 for Luvic Phaeozems. Our results suggest that the reaction of test organisms to oil pollution depends on the soil type, and their complex application makes it possible to identify the most sensitive factor and assess the dangerous level of pollution.
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Affiliation(s)
- S A Buzmakov
- Department of Biogeocenology and Nature Protection, Perm State University, 15, Bukireva st, Perm, Russia, 614990
| | - I B Ivshina
- Microbiology and Immunology Department, Perm State University, 15, Bukireva st, Perm, Russia, 614990
- Laboratory of Alkanotrophic Microorganisms, Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia, 614081
| | - D O Egorova
- Department of Biogeocenology and Nature Protection, Perm State University, 15, Bukireva st, Perm, Russia, 614990.
- Laboratory of Molecular Microbiology and Biotechnology, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia, 614081.
| | - Y V Khotyanovskaya
- Department of Biogeocenology and Nature Protection, Perm State University, 15, Bukireva st, Perm, Russia, 614990
| | - D N Andreev
- Department of Biogeocenology and Nature Protection, Perm State University, 15, Bukireva st, Perm, Russia, 614990
| | - A V Nazarov
- Laboratory of Molecular Microbiology and Biotechnology, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia, 614081
| | - E A Dziuba
- Department of Biogeocenology and Nature Protection, Perm State University, 15, Bukireva st, Perm, Russia, 614990
| | - I E Shestakov
- Department of Biogeocenology and Nature Protection, Perm State University, 15, Bukireva st, Perm, Russia, 614990
| | - M S Kuyukina
- Microbiology and Immunology Department, Perm State University, 15, Bukireva st, Perm, Russia, 614990
- Laboratory of Alkanotrophic Microorganisms, Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia, 614081
| | - A A Elkin
- Microbiology and Immunology Department, Perm State University, 15, Bukireva st, Perm, Russia, 614990
- Laboratory of Alkanotrophic Microorganisms, Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia, 614081
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Ivshina IB, Tyumina EA, Bazhutin GA, Vikhareva EV. Response of Rhodococcus cerastii IEGM 1278 to toxic effects of ibuprofen. PLoS One 2021; 16:e0260032. [PMID: 34793540 PMCID: PMC8601567 DOI: 10.1371/journal.pone.0260032] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 10/29/2021] [Indexed: 11/23/2022] Open
Abstract
The article expands our knowledge on the variety of biodegraders of ibuprofen, one of the most frequently detected non-steroidal anti-inflammatory drugs in the environment. We studied the dynamics of ibuprofen decomposition and its relationship with the physiological status of bacteria and with additional carbon and energy sources. The involvement of cytoplasmic enzymes in ibuprofen biodegradation was confirmed. Within the tested actinobacteria, Rhodococcus cerastii IEGM 1278 was capable of complete oxidation of 100 μg/L and 100 mg/L of ibuprofen in 30 h and 144 h, respectively, in the presence of an alternative carbon source (n-hexadecane). Besides, the presence of ibuprofen induced a transition of rhodococci from single- to multicellular lifeforms, a shift to more negative zeta potential values, and a decrease in the membrane permeability. The initial steps of ibuprofen biotransformation by R. cerastii IEGM 1278 involved the formation of hydroxylated and decarboxylated derivatives with higher phytotoxicity than the parent compound (ibuprofen). The data obtained indicate potential threats of this pharmaceutical pollutant and its metabolites to biota and natural ecosystems.
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Affiliation(s)
- Irina B. Ivshina
- Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences, Perm, Russia
- * E-mail:
| | - Elena A. Tyumina
- Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences, Perm, Russia
| | - Grigory A. Bazhutin
- Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences, Perm, Russia
| | - Elena V. Vikhareva
- Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences, Perm, Russia
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Ivshina IB, Kuyukina MS, Krivoruchko AV, Tyumina EA. Responses to Ecopollutants and Pathogenization Risks of Saprotrophic Rhodococcus Species. Pathogens 2021; 10:974. [PMID: 34451438 PMCID: PMC8398200 DOI: 10.3390/pathogens10080974] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 11/17/2022] Open
Abstract
Under conditions of increasing environmental pollution, true saprophytes are capable of changing their survival strategies and demonstrating certain pathogenicity factors. Actinobacteria of the genus Rhodococcus, typical soil and aquatic biotope inhabitants, are characterized by high ecological plasticity and a wide range of oxidized organic substrates, including hydrocarbons and their derivatives. Their cell adaptations, such as the ability of adhering and colonizing surfaces, a complex life cycle, formation of resting cells and capsule-like structures, diauxotrophy, and a rigid cell wall, developed against the negative effects of anthropogenic pollutants are discussed and the risks of possible pathogenization of free-living saprotrophic Rhodococcus species are proposed. Due to universal adaptation features, Rhodococcus species are among the candidates, if further anthropogenic pressure increases, to move into the group of potentially pathogenic organisms with "unprofessional" parasitism, and to join an expanding list of infectious agents as facultative or occasional parasites.
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Affiliation(s)
- Irina B. Ivshina
- Perm Federal Research Center UB RAS, Institute of Ecology and Genetics of Microorganisms UB RAS, 13 Golev Str., 614081 Perm, Russia; (M.S.K.); (A.V.K.); (E.A.T.)
- Department of Microbiology and Immunology, Perm State University, 15 Bukirev Str., 614990 Perm, Russia
| | - Maria S. Kuyukina
- Perm Federal Research Center UB RAS, Institute of Ecology and Genetics of Microorganisms UB RAS, 13 Golev Str., 614081 Perm, Russia; (M.S.K.); (A.V.K.); (E.A.T.)
- Department of Microbiology and Immunology, Perm State University, 15 Bukirev Str., 614990 Perm, Russia
| | - Anastasiia V. Krivoruchko
- Perm Federal Research Center UB RAS, Institute of Ecology and Genetics of Microorganisms UB RAS, 13 Golev Str., 614081 Perm, Russia; (M.S.K.); (A.V.K.); (E.A.T.)
- Department of Microbiology and Immunology, Perm State University, 15 Bukirev Str., 614990 Perm, Russia
| | - Elena A. Tyumina
- Perm Federal Research Center UB RAS, Institute of Ecology and Genetics of Microorganisms UB RAS, 13 Golev Str., 614081 Perm, Russia; (M.S.K.); (A.V.K.); (E.A.T.)
- Department of Microbiology and Immunology, Perm State University, 15 Bukirev Str., 614990 Perm, Russia
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Abstract
Oleanane and ursane pentacyclic triterpenoids are secondary metabolites of plants found in various climatic zones and regions. This group of compounds is highly attractive due to their diverse biological properties and possible use as intermediates in the synthesis of new pharmacologically promising substances. By now, their antiviral, anti-inflammatory, antimicrobial, antitumor, and other activities have been confirmed. In the last decade, methods of microbial synthesis of these compounds and their further biotransformation using microorganisms are gaining much popularity. The present review provides clear evidence that industrial microbiology can be a promising way to obtain valuable pharmacologically active compounds in environmentally friendly conditions without processing huge amounts of plant biomass and using hazardous and expensive chemicals. This review summarizes data on distribution, microbial synthesis, and biological activities of native oleanane and ursane triterpenoids. Much emphasis is put on the processes of microbial transformation of selected oleanane and ursane pentacyclic triterpenoids and on the bioactivity assessment of the obtained derivatives.
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Affiliation(s)
- Natalia A. Luchnikova
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, 614081 Perm, Russia;
- Department of Microbiology and Immunology, Perm State National Research University, 614990 Perm, Russia
| | - Victoria V. Grishko
- Institute of Technical Chemistry, Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, 614013 Perm, Russia;
| | - Irina B. Ivshina
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, 614081 Perm, Russia;
- Department of Microbiology and Immunology, Perm State National Research University, 614990 Perm, Russia
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Gein SV, Kochina OA, Kuyukina MS, Klimenko DP, Ivshina IB. Effects of Monoacyltrehalose Fraction of Rhodococcus Biosurfactant on the Innate and Adaptive Immunity Parameters In Vivo. Bull Exp Biol Med 2020; 169:474-477. [PMID: 32910375 DOI: 10.1007/s10517-020-04912-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Indexed: 11/30/2022]
Abstract
The biosurfactant monoacyltrehalose fraction isolated from Rhodococcus ruber IEGM 231 actinobacterium suppresses antibody production, bactericidal potential, and production of IL-1β by mouse peritoneal cells after intraperitoneal and intramuscular injection and stimulates the production of IL-10 after intraperitoneal injection. The data of in vitro experiments attest to an important role of bacterial glycolipids in the regulation of the functions of splenocytes and peritoneal macrophages.
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Affiliation(s)
- S V Gein
- Institute of Ecology and Microorganic Genetics - Affiliated Branch of Perm' Federal Research Center, Ural Division of the Russian Academy of Sciences, Perm', Russia. .,Perm' State National University, Perm', Russia.
| | - O A Kochina
- Institute of Ecology and Microorganic Genetics - Affiliated Branch of Perm' Federal Research Center, Ural Division of the Russian Academy of Sciences, Perm', Russia.,Perm' State National University, Perm', Russia
| | - M S Kuyukina
- Institute of Ecology and Microorganic Genetics - Affiliated Branch of Perm' Federal Research Center, Ural Division of the Russian Academy of Sciences, Perm', Russia.,Perm' State National University, Perm', Russia
| | | | - I B Ivshina
- Institute of Ecology and Microorganic Genetics - Affiliated Branch of Perm' Federal Research Center, Ural Division of the Russian Academy of Sciences, Perm', Russia.,Perm' State National University, Perm', Russia
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Luchnikova NA, Ivanova KM, Tarasova EV, Grishko VV, Ivshina IB. Microbial Conversion of Toxic Resin Acids. Molecules 2019; 24:molecules24224121. [PMID: 31739575 PMCID: PMC6891630 DOI: 10.3390/molecules24224121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/07/2019] [Accepted: 11/13/2019] [Indexed: 12/03/2022] Open
Abstract
Organic wood extractives—resin acids—significantly contribute to an increase in the toxicity level of pulp and paper industry effluents. Entering open ecosystems, resin acids accumulate and have toxic effects on living organisms, which can lead to the ecological imbalance. Among the most effective methods applied to neutralize these ecotoxicants is enzymatic detoxification using microorganisms. A fundamental interest in the in-depth study of the oxidation mechanisms of resin acids and the search for their key biodegraders is increasing every year. Compounds from this group receive attention because of the need to develop highly effective procedures of resin acid removal from pulp and paper effluents and also the possibility to obtain their derivatives with pronounced pharmacological effects. Over the past fifteen years, this is the first report analyzing the data on distribution, the impacts on living organisms, and the microbial transformation of resin acids. Using the example of dehydroabietic acid—the dominant compound of resin acids in effluents—the review discusses the features of interactions between microorganisms and this pollutant and also highlights the pathways and main products of resin acid bioconversion.
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Affiliation(s)
- Natalia A. Luchnikova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, 614081 Perm, Russia; (N.A.L.); (K.M.I.); (E.V.T.)
- Department of Microbiology and Immunology, Perm State National Research University, 614990 Perm, Russia
| | - Kseniya M. Ivanova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, 614081 Perm, Russia; (N.A.L.); (K.M.I.); (E.V.T.)
- Department of Microbiology and Immunology, Perm State National Research University, 614990 Perm, Russia
| | - Ekaterina V. Tarasova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, 614081 Perm, Russia; (N.A.L.); (K.M.I.); (E.V.T.)
- Department of Microbiology and Immunology, Perm State National Research University, 614990 Perm, Russia
| | - Victoria V. Grishko
- Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences, 614013 Perm, Russia;
| | - Irina B. Ivshina
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, 614081 Perm, Russia; (N.A.L.); (K.M.I.); (E.V.T.)
- Department of Microbiology and Immunology, Perm State National Research University, 614990 Perm, Russia
- Correspondence: ; Tel.: +7-342-2808114
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Abstract
This study investigated the ability of rhodococci to biodegrade diclofenac (DCF), one of the polycyclic non-steroidal anti-inflammatory drugs (NSAIDs) most frequently detected in the environment. Rhodococcus ruber strain IEGM 346 capable of complete DCF biodegradation (50 µg/L) over 6 days was selected. It is distinguished by the ability to degrade DCF at high (50 mg/L) concentrations unlike other known biodegraders. The DCF decomposition process was accelerated by adding glucose and due to short-term cell adaptation to 5 µg/L DCF. The most typical responses to DCF exposure observed were the changed ζ-potential of bacterial cells; increased cell hydrophobicity and total cell lipid content; multi-cellular conglomerates formed; and the changed surface-to-volume ratio. The obtained findings are considered as mechanisms of rhodococcal adaptation and hence their increased resistance to toxic effects of this pharmaceutical pollutant. The proposed pathways of bacterial DCF metabolisation were described. The data confirming the C-N bond cleavage and aromatic ring opening in the DCF structure were obtained.
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Affiliation(s)
- Irina B Ivshina
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, 13 Golev Street, 614081, Perm, Russia.
- Perm State National Research University, 15 Bukirev Street, 614990, Perm, Russia.
| | - Elena A Tyumina
- Perm State National Research University, 15 Bukirev Street, 614990, Perm, Russia
| | - Maria V Kuzmina
- Perm State Pharmaceutical Academy, 2 Polevaya Street, 614990, Perm, Russia
| | - Elena V Vikhareva
- Perm State Pharmaceutical Academy, 2 Polevaya Street, 614990, Perm, Russia
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Krivoruchko AV, Iziumova AY, Kuyukina MS, Plekhov OA, Naimark OB, Ivshina IB. Adhesion of Rhodococcus ruber IEGM 342 to polystyrene studied using contact and non-contact temperature measurement techniques. Appl Microbiol Biotechnol 2018; 102:8525-8536. [DOI: 10.1007/s00253-018-9297-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 10/28/2022]
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Gein SV, Kochina OA, Kuyukina MS, Ivshina IB. Effects of Glycolipid Rhodococcus Biosurfactant on Innate and Adaptive Immunity Parameters In Vivo. Bull Exp Biol Med 2018; 165:368-372. [PMID: 30003418 DOI: 10.1007/s10517-018-4172-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Indexed: 10/28/2022]
Abstract
The glycolipid biosurfactant complex from actinobacterium Rhodococcus ruber IEGM 231 inhibits the innate and adaptive immunity parameters after intraperitoneal and intramuscular injection. Marked suppression of antibody production, bactericidal potential, and production of proinflammatory cytokines by peritoneal macrophages, detected in vivo, do not agree with the previously detected immunostimulatory activity of biosurfactants towards the immunocompetent cell cultures; this fact indicates an important role of the cell environment in the formation of immune response under the effect of bacterial glycolipids.
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Affiliation(s)
- S V Gein
- Institute of Ecology and Genetics of Microorganisms, Ural Division of the Russian Academy of Sciences, Perm, Russia. .,Perm State National Research University, Perm, Russia.
| | - O A Kochina
- Institute of Ecology and Genetics of Microorganisms, Ural Division of the Russian Academy of Sciences, Perm, Russia
| | - M S Kuyukina
- Institute of Ecology and Genetics of Microorganisms, Ural Division of the Russian Academy of Sciences, Perm, Russia.,Perm State National Research University, Perm, Russia
| | - I B Ivshina
- Institute of Ecology and Genetics of Microorganisms, Ural Division of the Russian Academy of Sciences, Perm, Russia.,Perm State National Research University, Perm, Russia
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Cheremnykh KM, Luchnikova NA, Grishko VV, Ivshina IB. Bioconversion of ecotoxic dehydroabietic acid using Rhodococcus actinobacteria. J Hazard Mater 2018; 346:103-112. [PMID: 29253749 DOI: 10.1016/j.jhazmat.2017.12.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 12/06/2017] [Accepted: 12/08/2017] [Indexed: 06/07/2023]
Abstract
Actinobactrial strains Rhodococcus erythropolis IEGM 267 and R. rhodochrous IEGM 107 were used to study biodegradation of dehydroabietic acid (DHA), a toxic tricyclic diterpenoid. The experiments were carried out in batch cultures of pre-grown rhodococci in the presence of 0.1% (v/v) n-hexadecane under aerobic conditions for 7 days. It was shown that R. erythropolis IEGM 267 and R. rhodochrous IEGM 107 partially and completely degraded DHA (500 mg/L), respectively. Characteristic physicochemical (reduced zeta potential) and morphological-physiological (increased average size of single cells and cell aggregates, increased root-mean-square roughness) changes in DHA-exposed actinobacteria were revealed. Products of DHA bioconversion by R. erythropolis IEGM 267 were analyzed and exhibited a previously unidentified metabolite 5α-hydroxy-abieta-8,11,13-triene-18-oat. The obtained experimental data widen the knowledge on the catalytic activity of rhodococci and their possible contribution to decontamination of natural ecosystems from pollutants.
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Affiliation(s)
- Kseniya M Cheremnykh
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, 13 Golev Str., 614081, Perm, Russia; Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Str., 614990, Perm, Russia.
| | - Natalia A Luchnikova
- Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Str., 614990, Perm, Russia.
| | - Victoria V Grishko
- Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences, 3 Ak. Korolev Str., 614013 Perm, Russia.
| | - Irina B Ivshina
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, 13 Golev Str., 614081, Perm, Russia; Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Str., 614990, Perm, Russia.
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Kuiukina MS, Korshunova IO, Rubtsova EV, Ivshina IB. [Methods of microorganism immobilization for dynamic atomic-force studies (review)]. ACTA ACUST UNITED AC 2014; 50:7-16. [PMID: 25272746 DOI: 10.7868/s0555109914010085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Atomic-force microscopy (AFM) is an efficient method for studying the surface ultrastructure and nanomechanical properties of biological objects (including microorganisms). A correctly selected method of microorganism immobilization (that provides a strong attachment of cells on the surface of a biologically inert substrate and the preservation of their native properties) is an important condition of AFM scanning in a liquid medium. Comparative characteristics of methods of microorganism immobilization (that are applied in dynamic AFM studies) are given in the review. Technologies of mechanical retention and chemical binding of cells to a substrate, as well as protein and immunospecific adsorption, are considered.
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Serebrennikova MK, Kuiukina MS, Krivoruchko AV, Ivshina IB. [Adaptation of coimmobilized Rhodococcus cells to oil hydrocarbons in a column bioreactor]. Prikl Biokhim Mikrobiol 2014; 50:295-303. [PMID: 25757338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The possible adaptation of the association of Rhodococcus ruber and Rhodococcus opacus strains immobilized on modified sawdust to oil hydrocarbons in a column bioreactor was investigated. In the bioreactor, the bacterial population showed higher hydrocarbon and antibiotic resistance accompanied by the changes in cell surface properties (hydrophobicity, electrokinetic potential) and in the content of cellular lipids and biosurfactants. The possibility of using adapted Rhodococcus strains for the purification of oil-polluted water in the bioreactor was demonstrated.
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Grishko VV, Tarasova EV, Ivshina IB. Biotransformation of betulin to betulone by growing and resting cells of the actinobacterium Rhodococcus rhodochrous IEGM 66. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.08.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rubtsova EV, Kuiukina MS, Ivshina IB. [Effect of cultivation conditions on the adhesive activity of rhodococci towards n-hexadecane]. Prikl Biokhim Mikrobiol 2012; 48:501-509. [PMID: 23101387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The effect of cultivation conditions (the composition, acidity, and salinity of the cultivation medium; temperature; and the hydrodynamic conditions of cultivation) on the adhesion of actinobacteria of the genus Rhodococcus to n-hexadecane has been investigated. A study performed showed that the adhesive activity of rhodococci depends on the composition of the cultivation medium and on the cultivation temperature. The possible mechanisms underlying the effect of growth conditions on the adhesion ofrhodococci to liquid hydrocarbons and involving changes in the cell lipid content or the zeta potential of cells are addressed. Rhodococcal strains displaying high adhesive activity (80-90%) at a low temperature (18 degrees C), high salinity (5.0% NaCl), and acidity (pH 6.0) of the cultivation medium have been selected as a result of the present work; these strains have a considerable potential for use in bioremediation of soil and water contaminated by hydrocarbons.
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Ivshina IB. [Current Situation and Challenges of Specialized Microbial Resource Centres in Russia]. Mikrobiologiia 2012; 81:551-560. [PMID: 23234065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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Nogovitsina EM, Grishko VV, Ivshina IB. [Biocatalytic synthesis of pharmacology perspective stigmast-4-en-3-one using Rhodococci cells]. Bioorg Khim 2012; 37:697-704. [PMID: 22332367 DOI: 10.1134/s1068162011050128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The conditions for a directed biocatalytic oxidation of beta-sitosterol to a pharmacologically promising stigmast-4-en-3-one using Rhodococcus actinobacteria were selected. It was shown that palmitic acid induced the cholesterol oxidase reaction and allowed for the decrease in the bioconversion process duration from 7 to 5 days. The maximum level ofstigmast-4-ene-3-one formation was achieved using n-hexadecane as an additional growth substrate. With increased concentrations of beta-sitosterol (up to 2 g/L) an effective target product formation (80%) was achieved in the presence of Tween-80 and beta-cyclodextrine. R. erythropolis strains were 1.5-2 times more active than R. ruber strains in catalyzing the beta-sitosterol biotransformation process.
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Kuyukina MS, Ivshina IB, Rubtsova EV, Ivanov RV, Lozinskiĭ VI. [Adsorptive immobilization of rhodococcal cells in hydrophobized derivatives of wide-pore polyacrylamide cryogel]. Prikl Biokhim Mikrobiol 2011; 47:176-182. [PMID: 22808741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Adsorption of Rhodococcus ruber cells on columns with polyacrylamide cryogel (CryoPAAG) partially hydrophobized by different quantities (0.2, 1, and 5 mol %) of chemically grafted n-dodecane residues has been studied. The adsorption capacity (1.1 x 10(9) cells/g) of gel carrier for rhodococcal cells and the optimal content (1 mol %) of hydrophobizing groups were determined. The respirometric method showed the high catalytic activity and functional stability of immobilized bacterial cells. Respiratory activity of immobilized rhodococci in the presence of a model mixture of oil hydrocarbons exceeded the respective parameter for free cells by 12-17%. Viability of rhodococcal cells adsorptionally fixed in hydrophobized cryoPAAG was maintained at a level of 93-95% after a half-year period of storage. The results may be used for development of immobilized biocatalyst for directed transformation of hydrocarbon compounds and biological purification of oil-polluted water.
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El'kin AA, Grishko VV, Ivshina IB. [Oxidative biotransformation of thioanisole by Rhodococcus rhodochrous IEGM 66 cells]. Prikl Biokhim Mikrobiol 2010; 46:637-643. [PMID: 21261073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Comparative study of sulfoxidation activity of free and immobilized Rhodococcus rhodochrous IEGM 66 cells was performed. Free Rhodococcus cells (in the presence of 0.1 vol % n-hexadecane) displayed maximal oxidative activity towards thioanisole (0.5 g/l), a prochiral organic sulfide, added after 48-h cultivation of bacterial cells. Higher sulfide concentrations inhibited sulfoxidation activity of Rhodococcus. Use of immobilized cells allowed the 2-day preparatory stage to be omitted and a complete thioanisole bioconversion to be achieved in 24 h in the case that biocatalyst and 0.5 g/l thioanisole were added simultaneously. The biocatalyst immobilized on gel provides for complete thioanisole transformation into (S)-thioanisole sulfoxide (optical purity of 82.1%) at high (1.0-1.5 g/l) concentrations of sulfide substrate.
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Ivshina IB, Rychkova MI, Vikhareva EV, Chekryshkina LA, Mishenina II. [Catalysis of the biodegradation of unusable medicines by alkanotrophic rhodococci]. Prikl Biokhim Mikrobiol 2006; 42:443-7. [PMID: 17022454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Experiments on the biodegradation of unusable medicines containing a phenolic hydroxy group by actinobacteria of the genus Rhodococcus were performed. Six species and sixty-four strains were tested. It was found that rhodococci could degrade paracetamol, and some R. ruber strains showed high levels of its degradation. An efficient method for the identification and quantification of paracetamol and the products of its conversion (p-aminophenol, pyrocatechol, and hydroquinone) immediately in the culture liquid was developed. Conditions for the complete biodegradation of paracetamol dosage forms (pills) were optimized. The experimental results can be applied for the development of biotechnological methods for degrading medicines: faked, rejected, or those that are expired.
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Ivshina IB, Grishko VV, Nogovitsina EM, Kukina TP, Tolstikov GA. [Bioconversion of beta-sitosterol and its complex esters by Rhodococcus actinobacteria]. Prikl Biokhim Mikrobiol 2005; 41:626-33. [PMID: 16358751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The ability of pure cultures of Rhodococcus actinobacteria from the Ural specialized collection of alkanotrophic microorganisms (World Federation for Culture Collections accession number 768; http://www.ecology.psu.ru/iegmcol) to convert beta-sitosterol (BSS) and its 3beta-acylated derivatives was studied. Rhodococcus strains with pronounced cholesterol oxidase activity, capable of converting BSS to stigmat-4-ene-3-one in the reaction of cooxidation with n-hexadecane, were selected. The dependence of the activity of cholesterol oxidase of rhodococci on the length of the acyl group in BSS esters was studied. Conditions under which Rhodococcus cells convert BSS to 17beta-hydroxyandrost-4-ene-3-one (testosterone), commonly used in pharmacology, were determined.
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Affiliation(s)
- N Christofi
- Pollution Research Unit, School of Life Sciences, Napier University, Edinburgh, Scotland, UK.
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Philp JC, Kuyukina MS, Ivshina IB, Dunbar SA, Christofi N, Lang S, Wray V. Alkanotrophic Rhodococcus ruber as a biosurfactant producer. Appl Microbiol Biotechnol 2002; 59:318-24. [PMID: 12111164 DOI: 10.1007/s00253-002-1018-4] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2002] [Revised: 04/02/2002] [Accepted: 04/02/2002] [Indexed: 10/27/2022]
Abstract
In this report we examined the structure and properties of surface-active lipids of Rhodococcus ruber. Most historical interest has been in the glycolipids of Rhodococcus erythropolis, which have been extensively characterised. R. erythropolis has been of interest due to its great metabolic diversity. Only recently has the metabolic potential of R. ruber begun to be explored. One major difference in the two species is that most R. ruber strains are able to oxidise the gaseous alkanes propane and butane. In preparation for investigation of the effects of gas metabolism on biosurfactant production, we set out to characterise the biosurfactants produced during growth on liquid n-alkanes and to compare these with R. erythropolis glycolipids.
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Affiliation(s)
- J C Philp
- School of Life Sciences, Napier University, Edinburgh, Scotland.
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Ivshina IB, Peshkur TA, Korobov VP. [The efficient accumulation of cesium ions by Rhodococcus cells]. Mikrobiologiia 2002; 71:418-23. [PMID: 12138767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Bacteria of the genus Rhodococcus were found to be able to accumulate cesium by means of active transport and nonspecific sorption on the cell surface structures. The maximum removal (up to 97%) of cesium from a medium with ammonium acetate was observed at 28 degrees C, pH 7.8-8.6, and an equimolar content (0.2 mM) of potassium and cesium ions in the medium. The most active cesium-accumulating Rhodococcus sp. strains can be used for purification of industrial wastewaters contaminated with radionuclides.
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Affiliation(s)
- I B Ivshina
- Institute of Ecology and Genetics of Microorganisms, Ural Division, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081 Russia.
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Kuyukina MS, Ivshina IB, Philp JC, Christofi N, Dunbar SA, Ritchkova MI. Recovery of Rhodococcus biosurfactants using methyl tertiary-butyl ether extraction. J Microbiol Methods 2001; 46:149-56. [PMID: 11412925 DOI: 10.1016/s0167-7012(01)00259-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
In the present study, we proposed methyl tertiary-butyl ether (MTBE) as a solvent for extraction of biosurfactants from Rhodococcus bacterial cultures. After comparison with other well known solvent systems used for biosurfactant extraction, it was found that MTBE was able to extract crude surfactant material with high product recovery (10 g/l), efficiency (critical micelle concentration (CMC), 130-170 mg/l) and good functional surfactant characteristics (surface and interfacial tensions, 29 and 0.9 mN/m, respectively). The isolated surfactant complex contained 10% polar lipids, mostly glycolipids possessing maximal surface activity. Ultrasonic treatment of the extraction mixture increased the proportion of polar lipids in crude extract, resulting in increasing surfactant efficiency. Due to certain characteristics of MTBE, such as relatively low toxicity, biodegradability, ease of downstream recovery, low flammability and explosion safety, the use of this solvent as an extraction agent in industrial scale biosurfactant production is feasible.
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Affiliation(s)
- M S Kuyukina
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of Russian Academy of Sciences, 12 Golev Street, 614081, Perm, Russia
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Vorob’ev AV, Grishko VV, Ivshina IB, Shmidt EN, Pokrovskii LM, Kuyukina MS, Tolstikov GA. Microbial transformations of diterpene acids. Mendeleev Communications 2001. [DOI: 10.1070/mc2001v011n02abeh001414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kuiukina MS, Ivshina IB, Rychkova MI, Chumakov OB. [Effect of composition of cellular lipids of formation of nonspecific antibiotic resistance of alkanotrophic rhodocoocci]. Mikrobiologiia 2000; 69:62-9. [PMID: 10808491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
The antibiotic resistance and lipid composition of rhodococci grown in rich organic media with gaseous or liquid n-alkanes were studied. Hydrocarbon-grown rhodococci exhibited an increased resistance to a wide range of antibiotics (aminoglycosides, linkosamides, macrolides, beta-lactams, and aromatic compounds). The enhanced antibiotic resistance of rhodococci grown on n-alkanes correlated with an increased content of total cell lipids (up to 14-28%) and saturated straight-chain fatty acids (C16:0, C18:0, C21:0) and was accompanied by the appearance of cardiolipin and phosphatidylglycerol in cells. These lipid compounds were supposed to promote the formation of nonspecific antibiotic resistance in rhodococci by decreasing the permeability of their cell envelope to antibiotics.
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Affiliation(s)
- M S Kuiukina
- Institute of Ecology and Genetics of Microorganisms, Russian Academy of Sciences, Perm, Russia
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Bell KS, Kuyukina MS, Heidbrink S, Philp JC, Aw DW, Ivshina IB, Christofi N. Identification and environmental detection of Rhodococcus species by 16S rDNA-targeted PCR. J Appl Microbiol 1999; 87:472-80. [PMID: 10583674 DOI: 10.1046/j.1365-2672.1999.00824.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Bacteria of the genus Rhodococcus can degrade a wide range of organic pollutants and catalyse many useful biotransformations. There is a need for improved tests to identify Rhodococcus species. PCR-based methods for species identification offer advantages in terms of speed and accuracy over traditional methods and can allow direct detection of microbes in environmental samples., PCR tests, using primers targeted at species-specific sequences in the 16S rRNA gene, were successfully developed for R. globerulus, R. erythropolis, R. opacus and R. ruber. These tests gave positive results with all or most strains of target species but did not generally cross-react with other species. Cases of apparent cross-reaction were shown to be due to prior misclassification of strains of R. opacus as R. erythropolis and of strains of R. ruber as R. rhodochrous. A simple and rapid method for the extraction and purification of DNA from soil was developed and successfully applied to the PCR detection of indigenous R. erythropolis in an environmental sample. Cell lysis in the samples was achieved by lysozyme and sarkosyl treatment, aided by freeze-thaw cycles. Removal of humic compounds inhibitory to PCR was accomplished by CTAB treatment with solvent extraction and, if necessary, passage of extracts through Sepharose CL-6B in a spun-column format. Extracts prepared using a tris-EDTA buffer were much clearer than those prepared using a sodium phosphate buffer, indicating lower levels of humic compounds. A detection limit of 104 cfu g-1 of soil was achieved and the use of a secondary PCR allowed detection of 1 cfu g-1.
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Affiliation(s)
- K S Bell
- Napier University, Edinburgh, UK
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Ivshina IB, Gvozdiak OR, Bogomiagkova OA, Shkaruba VV. [Use of an immunodiffusion analysis method in micrococcus species determination]. Mikrobiologiia 1995; 64:78-82. [PMID: 7715484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Eight species of the genus Micrococcus were studied in details for their antigenic specificities with the aid of the created bank of specific polyclonal antisera to the type strains of Micrococcus Cohn 1872--M. luteus CCM 169, M. varians CCM 884, M. roseus CCM 679 and M. nishinomiyaensis CCM 2140. Immunochemical analysis of 146 strains isolated from various natural and industrial substrata, as well as of 31 collection strains allowed us to reveal antigenic relatedness and distinctions between studied cultures and to accomplish taxonomic distribution of various Micrococcus species. By the immunoduffusion analysis the intraspecific antigenic relationship of M. roseus and M. varians was found, as well as significant antigenic heterogeneity of M. luteus. The results of antigenic analysis of micrococci may be used in the collection work and for the express-diagnostics of these microorganisms.
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Ivshina IB. [Methods for isolating specific immune sera against bacteria of the genus Rhodococcus]. Mikrobiol Zh (1978) 1986; 48:8-13. [PMID: 2478868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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