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Articles de revues sur le sujet « Rhodococcu »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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1

Alvarez, Héctor M., Martín A. Hernández, Mariana P. Lanfranconi, Roxana A. Silva, and María S. Villalba. "Rhodococcus as Biofactories for Microbial Oil Production." Molecules 26, no. 16 (2021): 4871. http://dx.doi.org/10.3390/molecules26164871.

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Bacteria belonging to the Rhodococcus genus are frequent components of microbial communities in diverse natural environments. Some rhodococcal species exhibit the outstanding ability to produce significant amounts of triacylglycerols (TAG) (>20% of cellular dry weight) in the presence of an excess of the carbon source and limitation of the nitrogen source. For this reason, they can be considered as oleaginous microorganisms. As occurs as well in eukaryotic single-cell oil (SCO) producers, these bacteria possess specific physiological properties and molecular mechanisms that differentiate th

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Garrido-Sanz, Daniel, Miguel Redondo-Nieto, Marta Martín, and Rafael Rivilla. "Comparative Genomics of the Rhodococcus Genus Shows Wide Distribution of Biodegradation Traits." Microorganisms 8, no. 5 (2020): 774. http://dx.doi.org/10.3390/microorganisms8050774.

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The genus Rhodococcus exhibits great potential for bioremediation applications due to its huge metabolic diversity, including biotransformation of aromatic and aliphatic compounds. Comparative genomic studies of this genus are limited to a small number of genomes, while the high number of sequenced strains to date could provide more information about the Rhodococcus diversity. Phylogenomic analysis of 327 Rhodococcus genomes and clustering of intergenomic distances identified 42 phylogenomic groups and 83 species-level clusters. Rarefaction models show that these numbers are likely to increase

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RASTIMESINA, Inna, Olga POSTOLACHI, and Valentina JOSAN. "Dissociation of Rhodococcus rhodochrous Population after the Whole Cells Immobilization." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture 78, no. 1 (2021): 28. http://dx.doi.org/10.15835/buasvmcn-agr:2020.0043.

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Six agricultural organic wastes and three inorganic matrices were selected for rhodococci whole cells immobilization. The degree of immobilization of rhodococci cells varied from 6.20% to 34.30% on organic matrices. A high level of Rhodococcus rhodochrous CNMN-Ac-05 cells immobilization was demonstrated on inorganic matrices, it was from 69.25% to 97.30%. After the contact with support the strain dissociated, forming, in addition to original S type, rough (R) and altercolour smooth (S) types. Immobilization of rhodococci cells on organic supports led to the appearance of phenotypic heterogenei

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Ившина, И. Б., М. С. Куюкина та А. В. Криворучко. "Совершенство биологической организации и механизмы стрессоустойчивости Rhodococcus sensu stricto". Perm Scientific Center Journal, № 3 (8 листопада 2024): 15–31. https://doi.org/10.7242/2658-705x/2024.3.2.

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Among microorganisms of contaminated environments, the so-called stress-tolerants, a special place belongs to bacteria of the genus Rhodococcus (class Actinomycetes, order Mycobacteriales, family Nocardiaceae), which are able to effectively withstand a wide range of stress effects against the backdrop of a sharp decrease in the quality of the natural environment. Rhodococci possessing a complex of strategic survival techniques occupy a dominant position in the biocenoses of anthropogenically loaded soil and aquatic ecosystems. The paper considers a set of basic biological properties of extremo

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Chane, Andrea, Yvann Bourigault, Mathilde Bouteiller, et al. "Close-up on a bacterial informational war in the geocaulosphere." Canadian Journal of Microbiology 66, no. 7 (2020): 447–54. http://dx.doi.org/10.1139/cjm-2019-0546.

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The geocaulosphere is home to microbes that establish communication between themselves and others that disrupt them. These cell-to-cell communication systems are based on the synthesis and perception of signaling molecules, of which the best known belong to the N-acyl-homoserine lactone (AHL) family. Among indigenous bacteria, certain Gram-positive actinobacteria can sense AHLs produced by soft-rot Gram-negative phytopathogens and can degrade the quorum-sensing AHL signals to impair the expression of virulence factors. We mimicked this interaction by introducing dual-color reporter strains sui

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Ivshina, Irina, Grigory Bazhutin, Semyon Tyan, Maxim Polygalov, Maria Subbotina, and Elena Tyumina. "Cellular Modifications of Rhodococci Exposed to Separate and Combined Effects of Pharmaceutical Pollutants." Microorganisms 10, no. 6 (2022): 1101. http://dx.doi.org/10.3390/microorganisms10061101.

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Actinomycetes of the genus Rhodococcus (class Actinomycetia) are dominant dwellers of biotopes with anthropogenic load. They serve as a natural system of primary response to xenobiotics in open ecosystems, initiate defensive responses in the presence of pollutants, and are regarded as ideal agents capable of transforming and degrading pharmaceuticals. Here, the ability of selected Rhodococcus strains to co-metabolize nonsteroidal anti-inflammatory drugs (ibuprofen, meloxicam, and naproxen) and information on the protective mechanisms of rhodococci against toxic effects of pharmaceuticals, indi

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Whyte, L. G., T. H. M. Smits, D. Labbé, B. Witholt, C. W. Greer, and J. B. van Beilen. "Gene Cloning and Characterization of Multiple Alkane Hydroxylase Systems in Rhodococcus Strains Q15 and NRRL B-16531." Applied and Environmental Microbiology 68, no. 12 (2002): 5933–42. http://dx.doi.org/10.1128/aem.68.12.5933-5942.2002.

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ABSTRACT The alkane hydroxylase systems of two Rhodococcus strains (NRRL B-16531 and Q15, isolated from different geographical locations) were characterized. Both organisms contained at least four alkane monooxygenase gene homologs (alkB1, alkB2, alkB3, and alkB4). In both strains, the alkB1 and alkB2 homologs were part of alk gene clusters, each encoding two rubredoxins (rubA1 and rubA2; rubA3 and rubA4), a putative TetR transcriptional regulatory protein (alkU1; alkU2), and, in the alkB1 cluster, a rubredoxin reductase (rubB). The alkB3 and alkB4 homologs were found as separate genes which w

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Lilwani, Simran R., Sneha M. Dokhale, Parvathi JR та Madhavi R. Vernekar. "Isolation and characterization of a rare polar carotenoid 1’-OH-4-keto-ϒ-carotene from an indigenously isolated Rhodococcus kroppenstedtii MH715196". Food Science and Applied Biotechnology 5, № 2 (2022): 199. http://dx.doi.org/10.30721/fsab2022.v5.i2.200.

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The catabolic diversity and biocatalytic potential in members of genus Rhodococcus makes it an ideal industrial workhouse for metabolite production. Despite their applicability, Rhodococci are least explored for carotenoids, located in their cell membrane. The goal of the present study was to identify the carotenoids of Rhodococcus kroppenstedtii MH715196. UV-Vis spectral data and molecular mass estimates showed that the principal carotenoid extracted from R. kroppenstedtii MH715196 was 1’-OH-4-keto-ϒ-carotene. Biosynthetic route of 1’-OH-4-keto-ϒ-carotene in R. kroppenstedtii MH715196 was pos

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Thi Mo, Luong, Puntus Irina, Suzina Natalia, et al. "Hydrocarbons Biodegradation by Rhodococcus: Assimilation of Hexadecane in Different Aggregate States." Microorganisms 10, no. 8 (2022): 1594. http://dx.doi.org/10.3390/microorganisms10081594.

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The aim of our study was to reveal the peculiarities of the adaptation of rhodococci to hydrophobic hydrocarbon degradation at low temperatures when the substrate was in solid states. The ability of actinobacteria Rhodococcus erythropolis (strains X5 and S67) to degrade hexadecane at 10 °C (solid hydrophobic substrate) and 26 °C (liquid hydrophobic substrate) is described. Despite the solid state of the hydrophobic substrate at 10 °C, bacteria demonstrate a high level of its degradation (30–40%) within 18 days. For the first time, we show that specialized cellular structures are formed during

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Егорова, Д. О., Т. И. Горбунова, Т. Д. Кирьянова, М. Г. Первова та Е. Г. Плотникова. "Моделирование структуры α-субъединицы бифенил диоксигеназы штаммов рода Rhodococcu s и особенности деструкции хлорированных- и гидроксилированных бифенилов при различных температурах". Прикладная биохимия и микробиология 57, № 6 (2021): 571–82. http://dx.doi.org/10.31857/s0555109921060027.

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Petrikov, Kirill V., Anna A. Vetrova, Anastasia A. Ivanova, Olesya I. Sazonova, and Irina Yu Pozdnyakova-Filatova. "Generalization of Classification of AlkB Family Alkane Monooxygenases from Rhodococcus (sensu lato) Group Based on Phylogenetic Analysis and Genomic Context Comparison." International Journal of Molecular Sciences 26, no. 4 (2025): 1713. https://doi.org/10.3390/ijms26041713.

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Alkane-oxidizing bacteria play a crucial role in the global carbon cycle. Rhodococcus species are well-known hydrocarbon degraders, distinguished by the harboring of multiple homologs of AlkB family alkane monooxygenases. Although different types of rhodococcal AlkBs have been described, the overall picture of their diversity remains unclear, leaving gaps in the current classification. We conducted a phylogenetic analysis of all AlkBs identified in Rhodococcus (sensu lato) and examined the genomic context of the corresponding genes. The sequence clustering was well aligned with genomic neighbo

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Stecker, Christiane, Andre Johann, Christina Herzberg, Beate Averhoff, and Gerhard Gottschalk. "Complete Nucleotide Sequence and Genetic Organization of the 210-Kilobase Linear Plasmid of Rhodococcus erythropolis BD2." Journal of Bacteriology 185, no. 17 (2003): 5269–74. http://dx.doi.org/10.1128/jb.185.17.5269-5274.2003.

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ABSTRACT The complete nucleotide sequence of the linear plasmid pBD2 from Rhodococcus erythropolis BD2 comprises 210,205 bp. Sequence analyses of pBD2 revealed 212 putative open reading frames (ORFs), 97 of which had an annotatable function. These ORFs could be assigned to six functional groups: plasmid replication and maintenance, transport and metalloresistance, catabolism, transposition, regulation, and protein modification. Many of the transposon-related sequences were found to flank the isopropylbenzene pathway genes. This finding together with the significant sequence similarities of the

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Jones, Amanda L., June M. Brown, Vachaspati Mishra, John D. Perry, Arnold G. Steigerwalt, and Michael Goodfellow. "Rhodococcus gordoniae sp. nov., an actinomycete isolated from clinical material and phenol-contaminated soil." International Journal of Systematic and Evolutionary Microbiology 54, no. 2 (2004): 407–11. http://dx.doi.org/10.1099/ijs.0.02756-0.

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The taxonomic relationships of two actinomycetes provisionally assigned to the genus Rhodococcus were determined using a polyphasic taxonomic approach. The generic assignment was confirmed by 16S rRNA gene similarity data, as the organisms, strains MTCC 1534 and W 4937T, were shown to belong to the Rhodococcus rhodochrous subclade. These organisms had phenotypic properties typical of rhodococci; they were aerobic, Gram-positive, weakly acid-fast actinomycetes that showed an elementary branching-rod–coccus growth cycle and contained meso-diaminopimelic acid, arabinose and galactose in whole-org

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IVSHINA, I. B., E. A. TYUMINA, G. A. BAZHUTIN, M. A. POLYGALOV, and E. V. VIKHAREVA. "DEFENCE AND ADAPTATION MECHANISMS OF STRESS-TOLERANT RHODOCOCCI EXPOSED TO ECOPOLLUTANTS." Микробные биотехнологии: фундаментальные и прикладные аспекты 13 (October 21, 2021): 329–47. http://dx.doi.org/10.47612/2226-3136-2021-13-329-347.

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Data on adaptive cellular modifications of rhodococci under the influence of petroleum hydrocarbons, their derivatives and pharmaceutical pollutants are presented. Based on our own original results and literature data, the responses of Rhodococcus exposed to difficult-to-degrade hydrophobic compounds are of a deep and versatile adaptive nature manifested at different levels of the cellular organization of rhodococci. By a number of indicators, these responses are essentially of the same type, general and universal. The most frequently detected disturbances at early stages of nonspecific

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Bayandina, Elena A., Anastasia V. Pozdeeva, Maria S. Kuyukina, and Irena B. Ivshina. "Resistance of Rhodococcus collection strains to the effects of ecotoxicant – ethoxylated nonylphenol." Вестник Пермского университета. Серия «Биология»=Bulletin of Perm University. Biology, no. 4 (2023): 337–48. http://dx.doi.org/10.17072/1994-9952-2023-4-337-348.

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Ethoxylated nonylphenol (ENP), a widely used surfactant, is one of the most common xenoestro-gens, hormone–like xenobiotics, the accumulation of which in the environment has a negative impact on the en-docrine system of animals and humans, thereby increasing the level of environmental risk. Natural processes of ENP biodegradation are hindered due to its high toxicity to soil and aquatic microorganisms, which requires the selection of resistant strains-biodegraders of this ecopolutant. The screening of 50 strains of actinobacteria of the genus Rhodococcus from the Regional Specialised Collectio

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Ivshina, Irina B., Natalia A. Luchnikova, Polina Yu Maltseva, et al. "Biotransformation of (–)-Isopulegol by Rhodococcus rhodochrous." Pharmaceuticals 15, no. 8 (2022): 964. http://dx.doi.org/10.3390/ph15080964.

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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 trad

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Rakowska, Alicja, Agnieszka Marciniak-Karcz, Andrzej Bereznowski, Anna Cywińska, Monika Żychska, and Lucjan Witkowski. "Less Typical Courses of Rhodococcus equi Infections in Foals." Veterinary Sciences 9, no. 11 (2022): 605. http://dx.doi.org/10.3390/vetsci9110605.

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This article aims to present several interesting and less typical courses of Rhodococcus equi infections in foals, collected during the 2019–2021 foaling seasons in some Polish studs. The study was conducted by the Division of Veterinary Epidemiology and Economics, Warsaw University of Life Sciences—SGGW, and concentrated on ultrasonographic contribution to diagnostics and treatment of the disease. Among many standard cases of rhodococcal pneumonia, some rare ones occurred. The aforementioned issues include the potential contribution of rhodococcal infection to a grave outcome in a prematurely

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POSTOLACHI, Olga, Inna RASTIMESINA, and Valentina JOSAN. "Viability and phenotypic heterogeneity of Rhodococcus Rhodochrous CNMN-AC-05 in the presence of fullerene C60." One Health & Risk Management 2, no. 3 (2021): 4–9. http://dx.doi.org/10.38045/ohrm.2021.3.01.

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Introduction. In recent years, due to wide applications of nanotechnologies in various fields, the safety of nanomaterials has become a pressing issue. Fullerene C60 is not an exception. Research on the activity of microorganisms and their interaction with nanoparticles is of major importance, both for microorganisms and for the ecosystem as a whole. Material and methods. Fullerene C60 powder was purchased from Sigma-Aldrich. The object of study was R. rhodochrous CNMN-Ac-05 strain. The number of viable bacterial cells was estimated by colony-forming units (CFU). The morphological featur

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Kuyukina, Maria S., Grigorii G. Glebov, and Irena B. Ivshina. "Effects of Nickel Nanoparticles on Rhodococcus Cell Surface Morphology and Nanomechanical Properties." Nanomaterials 12, no. 6 (2022): 951. http://dx.doi.org/10.3390/nano12060951.

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Nickel nanoparticles (NPs) are used for soil remediation and wastewater treatment due to their high adsorption capacity against complex organic pollutants. However, despite the growing use of nickel NPs, their toxicological towards environmental bacteria have not been sufficiently studied. Actinobacteria of the genus Rhodococcus are valuable bioremediation agents degrading a range of harmful and recalcitrant chemicals. Both positive and negative effects of metal ions and NPs on the biodegradation of organic pollutants by Rhodococcus were revealed, however, the mechanisms of such interactions,

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Kitagawa, Wataru, Keisuke Miyauchi, Eiji Masai, and Masao Fukuda. "Cloning and Characterization of Benzoate Catabolic Genes in the Gram-Positive Polychlorinated Biphenyl DegraderRhodococcus sp. Strain RHA1." Journal of Bacteriology 183, no. 22 (2001): 6598–606. http://dx.doi.org/10.1128/jb.183.22.6598-6606.2001.

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ABSTRACT Benzoate catabolism is thought to play a key role in aerobic bacterial degradation of biphenyl and polychlorinated biphenyls (PCBs). Benzoate catabolic genes were cloned from a PCB degrader,Rhodococcus sp. strain RHA1, by using PCR amplification and temporal temperature gradient electrophoresis separation. A nucleotide sequence determination revealed that the deduced amino acid sequences encoded by the RHA1 benzoate catabolic genes, benABCDK, exhibit 33 to 65% identity with those of Acinetobacter sp. strain ADP1. The gene organization of the RHA1 benABCDKgenes differs from that of ADP

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Bourigault, Yvann, Sophie Rodrigues, Alexandre Crépin, et al. "Biocontrol of Biofilm Formation: Jamming of Sessile-Associated Rhizobial Communication by Rhodococcal Quorum-Quenching." International Journal of Molecular Sciences 22, no. 15 (2021): 8241. http://dx.doi.org/10.3390/ijms22158241.

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Biofilms are complex structures formed by a community of microbes adhering to a surface and/or to each other through the secretion of an adhesive and protective matrix. The establishment of these structures requires a coordination of action between microorganisms through powerful communication systems such as quorum-sensing. Therefore, auxiliary bacteria capable of interfering with these means of communication could be used to prevent biofilm formation and development. The phytopathogen Rhizobium rhizogenes, which causes hairy root disease and forms large biofilms in hydroponic crops, and the

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Villalba, María S., and Héctor M. Alvarez. "Identification of a novel ATP-binding cassette transporter involved in long-chain fatty acid import and its role in triacylglycerol accumulation in Rhodococcus jostii RHA1." Microbiology 160, no. 7 (2014): 1523–32. http://dx.doi.org/10.1099/mic.0.078477-0.

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Members of the genus Rhodococcus are specialists in the biosynthesis and accumulation of triacylglycerols (TAGs). As no transport protein related to TAG metabolism has yet been characterized in these bacteria, we used the available genomic information of Rhodococcus jostii RHA1 to perform a broad survey of genes coding for putative lipid transporter proteins in this oleaginous micro-organism. Among the seven genes encoding putative lipid transporters, ro05645 (now called ltp1: lipid transporter protein) coding for an ATP-binding cassette protein was found clustered with others genes encoding e

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Mandryk, М. I., А. А. Vysotskaya, Yu V. Yahorava, D. U. Surzhyk, А. Yu Larchenka, and S. L. Vasylenko. "Bioinformatic and functional analysis of the pSID siderophore biosynthesis plasmid of <i>Rhodococcus pyridinivorans</i> 5Ap." Microbiology 93, no. 4 (2024): 414–24. https://doi.org/10.31857/s0026365624040034.

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Complete genome sequencing of R. pyridinivorans strain 5Ар revealed the pSID plasmid (CP063453.1) 250428 bp in size. The gene responsible for replication of this plasmid is, most probably, dnaB. The genes which may be involved in the replication (dnaB, ssb) and plasmid separation after replication (parA) showed the highest similarity to the determinants located on large (224‒343 kb) plasmids of rhodococci: unnamed1 of R. pyridinivorans YF3, unnamed1 of R. rhodochrous LH-B3, pRJH1 of R. pyridinivorans YC-JH2, pRDE01 of Rhodococcus sp. RDE2, and pRho-VOC14-C342 of R. opacus VOC-14. The pSID plas

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Postolachi, O., I. Rastimesina, V. Josan, and T. Gutul. "Viability and Colony Morphology Variation of Rhodococcus rhodochrous CNMN-Ac-05 in the Presence of Magnetite Nanoparticles." Mikrobiolohichnyi Zhurnal 83, no. 4 (2021): 35–42. http://dx.doi.org/10.15407/microbiolj83.04.035.

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In recent decades the use of nanotechnologies in the remediation of xenobiotic substances has proven its effectiveness, but not its safety. Nanoparticles often accumulate in the remedied environment, having, over time, toxic effects on living organisms. In this context, research on the vital activity of microorganisms and their interaction with nanoparticles is of major importance. Aim of the research was to determine the influence of Fe3O4 nanoparticles, obtained by different ways (laboratory method and synthesis in the reactor) on the viability and colony morphology of Rhodococcus rhodochrou

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Yam, Katherine C., Sachi Okamoto, Joseph N. Roberts, and Lindsay D. Eltis. "Adventures inRhodococcus — from steroids to explosivesThis article is based on a presentation by Dr. Lindsay Eltis at the 60th Annual Meeting of the Canadian Society of Microbiologists in Hamilton, Ontario, 14 June 2010. Dr. Eltis was the recipient of the 2010 Norgen Biotek Corporation / CSM Award, an annual award sponsored by Norgen Biotek and the Canadian Society of Microbiologists intended to recognize outstanding scientific work in microbiology by a Canadian researcher." Canadian Journal of Microbiology 57, no. 3 (2011): 155–68. http://dx.doi.org/10.1139/w10-115.

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Rhodococcus is a genus of mycolic-acid-containing actinomycetes that utilize a remarkable variety of organic compounds as growth substrates. This degradation helps maintain the global carbon cycle and has increasing applications ranging from the biodegradation of pollutants to the biocatalytic production of drugs and hormones. We have been using Rhodococcus jostii RHA1 as a model organism to understand the catabolic versatility of Rhodococcus and related bacteria. Our approach is exemplified by the discovery of a cluster of genes specifying the catabolism of cholesterol. This degradation proce

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oer-areemitr, nittha. "Rhodococcal Emphysema Thoracis: A Case Report of Rhodococcus equi Present With Loculated Pleural Effusion." Chest 148, no. 4 (2015): 153A. http://dx.doi.org/10.1378/chest.2232109.

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Fournier, Diane, Sandra Trott, Jalal Hawari, and Jim Spain. "Metabolism of the Aliphatic Nitramine 4-Nitro-2,4-Diazabutanal by Methylobacterium sp. Strain JS178." Applied and Environmental Microbiology 71, no. 8 (2005): 4199–202. http://dx.doi.org/10.1128/aem.71.8.4199-4202.2005.

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ABSTRACT The aliphatic nitramine 4-nitro-2,4-diazabutanal (NDAB; C2H5N3O3) is a ring cleavage metabolite that accumulates during the aerobic degradation of the energetic compound hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) by various Rhodococcus spp. NDAB is also produced during the alkaline hydrolysis of either RDX or octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) and during the photolysis of RDX. Traces of NDAB were observed in a soil sampled from an ammunition-manufacturing facility contaminated with both HMX and RDX, suggesting natural attenuation. In this study, we report the is

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Ivshina, Irina B., Elena A. Tyumina, Grigory A. Bazhutin, and Elena V. Vikhareva. "Response of Rhodococcus cerastii IEGM 1278 to toxic effects of ibuprofen." PLOS ONE 16, no. 11 (2021): e0260032. http://dx.doi.org/10.1371/journal.pone.0260032.

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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 presenc

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Luchnikova, N. A., E. V. Tarasova, V. V. Grishko, and I. B. Ivshina. "<i>Rhodococcus rhodochrous</i> IEGM 1360, an Efficient Biocatalyst of C3 Oxidative Transformation of Oleanane Triterpenoids." Микробиология 92, no. 2 (2023): 184–96. http://dx.doi.org/10.31857/s0026365622600742.

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Abstract—The optimal conditions for C3 oxidative biotransformation of 1.0 g/L pentacyclic triterpenoids oleanolic (OA) and glycyrrhetic (GA) acids were determined using the resting cells of Rhodococcus rhodochrous IEGM 1360 from the Regional Specialised Collection of Alkanotrophic Microorganisms. Suspensions of the resting cells with OD600 2.6 in pH 8.0 buffer and OD600 2.2 in pH 6.0 buffer showed the highest catalytic activity against OA and GA, which ensured the formation of 61 and 100% of their 3-oxo derivatives, respectively. Using phase contrast, atomic force, and confocal laser scanning

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Sanz, M. G., A. Loynachan, and D. W. Horohov. "Rhodococcus-equi specific hyperimmune plasma decreased rhodococcal pneumonia severity in newborn foals after experimental infection." Journal of Equine Veterinary Science 39 (April 2016): S85. http://dx.doi.org/10.1016/j.jevs.2016.02.182.

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Hines, Stephen A., Diana M. Stone, Melissa T. Hines, et al. "Clearance of Virulent but Not Avirulent Rhodococcus equi from the Lungs of Adult Horses Is Associated with Intracytoplasmic Gamma Interferon Production by CD4+ and CD8+ T Lymphocytes." Clinical Diagnostic Laboratory Immunology 10, no. 2 (2003): 208–15. http://dx.doi.org/10.1128/cdli.10.2.208-215.2003.

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ABSTRACT Rhodococcus equi is a gram-positive bacterium that infects alveolar macrophages and causes rhodococcal pneumonia in horses and humans. The virulence plasmid of R. equi appears to be required for both pathogenicity in the horse and the induction of protective immunity. An understanding of the mechanisms by which virulent R. equi circumvents protective host responses and by which bacteria are ultimately cleared is important for development of an effective vaccine. Six adult horses were challenged with either virulent R. equi or an avirulent, plasmid-cured derivative. By using a flow cyt

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Yuzikhin, Oleg S., Alexander I. Shaposhnikov, Tatyana A. Konnova, et al. "Isolation and Characterization of 1-Hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexene-1-acetic Acid, a Metabolite in Bacterial Transformation of Abscisic Acid." Biomolecules 12, no. 10 (2022): 1508. http://dx.doi.org/10.3390/biom12101508.

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We report the discovery of a new abscisic acid (ABA) metabolite, found in the course of a mass spectrometric study of ABA metabolism by the rhizosphere bacterium Rhodococcus sp. P1Y. Analogue of (+)-ABA, enriched in tritium in the cyclohexene moiety, was fed in bacterial cells, and extracts containing radioactive metabolites were purified and analyzed to determine their structure. We obtained mass spectral fragmentation patterns and nuclear magnetic resonance spectra of a new metabolite of ABA identified as 1-hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexene-1-acetic acid, which we named rhodococcal

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Chane, Andrea, Corinne Barbey, Magalie Robert, et al. "Biocontrol of Soft Rot: Confocal Microscopy Highlights Virulent Pectobacterial Communication and Its Jamming by Rhodococcal Quorum-Quenching." Molecular Plant-Microbe Interactions® 32, no. 7 (2019): 802–12. http://dx.doi.org/10.1094/mpmi-11-18-0314-r.

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Confocal laser-scanning microscopy was chosen to observe the colonization and damage caused by the soft rot Pectobacterium atrosepticum and the protection mediated by the biocontrol agent Rhodococcus erythropolis. We developed dual-color reporter strains suited for monitoring quorum-sensing and quorum-quenching activities leading to maceration or biocontrol, respectively. A constitutively expressed cyan or red fluorescent protein served as a cell tag for plant colonization, while an inducible expression reporter system based on the green fluorescent protein gene enabled the simultaneous record

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Takeda, Hisashi, Jun Shimodaira, Kiyoshi Yukawa, et al. "Dual Two-Component Regulatory Systems Are Involved in Aromatic Compound Degradation in a Polychlorinated-Biphenyl Degrader, Rhodococcus jostii RHA1." Journal of Bacteriology 192, no. 18 (2010): 4741–51. http://dx.doi.org/10.1128/jb.00429-10.

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ABSTRACT A Gram-positive polychlorinated-biphenyl (PCB) degrader, Rhodococcus jostii RHA1, degrades PCBs by cometabolism with biphenyl. A two-component BphS1T1 system encoded by bphS1 and bphT1 (formerly bphS and bphT) is responsible for the transcription induction of the five gene clusters, bphAaAbAcAdC1B1, etbAa1Ab1CbphD1, etbAa2Ab2AcD2, etbAdbphB2, and etbD1, which constitute multiple enzyme systems for biphenyl/PCB degradation. The bphS2 and bphT2 genes, which encode BphS2 and BphT2, virtually identical to BphS1 (92%) and BphT1 (97%), respectively, were characterized. BphS2T2 induced the a

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Zhao, Hongyan, Kejian Tian, Qing Qiu та ін. "Genome Analysis of Rhodococcus Sp. DSSKP-R-001: A Highly Effective β-Estradiol-Degrading Bacterium". International Journal of Genomics 2018 (28 жовтня 2018): 1–11. http://dx.doi.org/10.1155/2018/3505428.

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We screened bacteria that use E2 as its sole source of carbon and energy for growth and identified them as Rhodococcus, and we named them DSSKP-R-001. For a better understanding of the metabolic potential of the strain, whole genome sequencing of Rhodococcus DSSKP-R-001 and annotation of the functional genes were performed. The genomic sketches included a predicted protein-coding gene of approximately 5.4 Mbp with G + C content of 68.72% and 5180. The genome of Rhodococcus strain DSSKP-R-001 consists of three replicons: one chromosome and two plasmids of 5.2, 0.09, and 0.09, respectively. The

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Švec, Pavel, Jitka Černohlávková, Hans-Jürgen Busse, et al. "Classification of strain CCM 4446T as Rhodococcus degradans sp. nov." International Journal of Systematic and Evolutionary Microbiology 65, Pt_12 (2015): 4381–87. http://dx.doi.org/10.1099/ijsem.0.000584.

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Strain CCM 4446T, with notable biodegradation capabilities, was investigated in this study in order to elucidate its taxonomic position. Chemotaxonomic analyses of quinones, polar lipids, mycolic acids, polyamines and the diamino acid of the cell-wall peptidoglycan corresponded with characteristics of the genus Rhodococcus. Phylogenetic analysis, based on the 16S rRNA gene sequence, assigned strain CCM 4446T to the genus Rhodococcus and placed it in the Rhodococcus erythropolis 16S rRNA gene clade. Further analysis of catA and gyrB gene sequences, automated ribotyping with EcoRI restriction en

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Kämpfer, P., W. Dott, K. Martin, and S. P. Glaeser. "Rhodococcus defluvii sp. nov., isolated from wastewater of a bioreactor and formal proposal to reclassify [Corynebacterium hoagii] and Rhodococcus equi as Rhodococcus hoagii comb. nov." International Journal of Systematic and Evolutionary Microbiology 64, Pt_3 (2014): 755–61. http://dx.doi.org/10.1099/ijs.0.053322-0.

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A Gram-stain-positive, non-endospore-forming rod-shaped bacterium, strain Ca11T, was isolated from a bioreactor with extensive phosphorus removal and was studied in detail for its taxonomic allocation. 16S rRNA gene sequence analysis revealed closest sequence similarity of the strain to type strains of [ Corynebacterium hoagii ] and Rhodococcus equi (98.9 %), Rhodococcus koreensis and Rhodococcus wratislaviensis (both 98.4 %), Rhodococcus opacus and Rhodococcus canchipurensis (both 98.0 %) followed by Rhodococcus kunmingensis and Rhodococcus imtechensis (97.7 %). Phylogenetic trees showed a di

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Ghosh, Anuradha, Debarati Paul, Dhan Prakash, Shanmugam Mayilraj, and Rakesh K. Jain. "Rhodococcus imtechensis sp. nov., a nitrophenol-degrading actinomycete." International Journal of Systematic and Evolutionary Microbiology 56, no. 8 (2006): 1965–69. http://dx.doi.org/10.1099/ijs.0.63939-0.

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A Gram-positive actinobacterium, strain RKJ300T, capable of utilizing p-nitrophenol and 2,4-dinitrophenol, was isolated from a pesticide-contaminated site in India. The morphological and chemotaxonomic properties of the isolate were typical of members of the genus Rhodococcus. The DNA G+C content was 72 mol%. Strain RKJ300T exhibited the highest level of sequence similarity with Rhodococcus wratislaviensis NCIMB 13082T (99.3 %), followed by Rhodococcus opacus DSM 43205T (98.8 %), Rhodococcus percolatus MBS1T (98.6 %) and Rhodococcus koreensis DNP505T (98.1 %). The low levels of DNA–DNA related

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Habib, Syahir, Siti Aqlima Ahmad, Wan Lutfi Wan Johari, et al. "Production of Lipopeptide Biosurfactant by a Hydrocarbon-Degrading Antarctic Rhodococcus." International Journal of Molecular Sciences 21, no. 17 (2020): 6138. http://dx.doi.org/10.3390/ijms21176138.

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Rhodococci are renowned for their great metabolic repertoire partly because of their numerous putative pathways for large number of specialized metabolites such as biosurfactant. Screening and genome-based assessment for the capacity to produce surface-active molecules was conducted on Rhodococcus sp. ADL36, a diesel-degrading Antarctic bacterium. The strain showed a positive bacterial adhesion to hydrocarbon (BATH) assay, drop collapse test, oil displacement activity, microplate assay, maximal emulsification index at 45% and ability to reduce water surface tension to < 30 mN/m. The evaluat

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Cereijo, A. E., M. L. Kuhn, M. A. Hernández, et al. "Study of duplicated galU genes in Rhodococcus jostii and a putative new metabolic node for glucosamine-1P in rhodococci." Biochimica et Biophysica Acta (BBA) - General Subjects 1865, no. 1 (2021): 129727. http://dx.doi.org/10.1016/j.bbagen.2020.129727.

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Wang, Zhichun, Jingliang Xu, Yan Li, et al. "Rhodococcus jialingiae sp. nov., an actinobacterium isolated from sludge of a carbendazim wastewater treatment facility." International Journal of Systematic and Evolutionary Microbiology 60, no. 2 (2010): 378–81. http://dx.doi.org/10.1099/ijs.0.013219-0.

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A novel carbendazim-degrading actinobacterium, designated djl-6-2T, was isolated from the sludge of a carbendazim wastewater treatment facility in Jiangsu province, China. The morphological and chemotaxonomic properties of the isolate were typical of members of the genus Rhodococcus. Strain djl-6-2T formed a coherent cluster with Rhodococcus qingshengii djl-6T, Rhodococcus baikonurensis DSM 44587T, Rhodococcus erythropolis DSM 43066T and Rhodococcus globerulus DSM 43954T in 16S rRNA gene sequence analysis. The results of DNA–DNA hybridization with the above strains (27.7, 19.3, 18.6 and 10.6 %

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Walsh, Robert D., Paul E. Schoch, and Burke A. Cunha. "Rhodococcus." Infection Control and Hospital Epidemiology 14, no. 5 (1993): 282–87. http://dx.doi.org/10.2307/30148370.

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Walsh, Robert D., Paul E. Schoch, and Burke A. Cunha. "Rhodococcus." Infection Control and Hospital Epidemiology 14, no. 5 (1993): 282–87. http://dx.doi.org/10.1086/646738.

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Герцен, Мария Михайловна, and Елена Дмитриевна Дмитриева. "STABILIZING ABILITY OF HUMIC SUBSTANCES AND MICRO-ORGANISMS OF THE GENUS RHODOCOCCUS IN THE RELATION TO OIL PRODUCTS." Вестник Тверского государственного университета. Серия: Химия, no. 3(41) (November 10, 2020): 112–23. http://dx.doi.org/10.26456/vtchem2020.3.12.

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Изучено влияние микроорганизмов рода Rhodococcus на стабилизирующую способность гуминовых веществ торфов по отношению к углеводородам нефти. Установлено, что наиболее стабильными являются водные эмульсии гексадекана и нефти в присутствии микроорганизмов Rhodococcus erythropolis S67 и гуминовые вещества тростникового низинного торфа, а по отношению к водной эмульсии дизельного топлива - гуминовые вещества сфагнового верхового торфа и Rhodococcus erythropolis Х5. Доказано, что полученная биокомпозиция на основе гуминовых веществ торфов и микроорганизмов рода Rhodococcus способна стабилизировать

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Дмитриева, Елена Дмитриевна, and Мария Михайловна Герцен. "INFLUENCE OF PEATS HUMIC SUBSTANCES ON THE STATE OF DROPS OF CRUDE OIL AND OIL PRODUCTS IN THE PRESENCE OF OIL DEGRADING MICROORGANISMS OF THE GENUS RHODOCOCCUS." Вестник Тверского государственного университета. Серия: Химия, no. 2(44) (June 25, 2021): 69–79. http://dx.doi.org/10.26456/vtchem2021.2.7.

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Максимальное диспергирование капель модельных нефтепродуктов в присутствии микроорганизмов Rhodococcus erythropolis X5 и гуминовых кислот сфагнового верхового торфа, а также микроорганизмов Rhodococcus erythropolis S67 и гуминовых кислот тростникового низинного торфа. Проведенный экспресс-тест доказал, что уменьшение пленки нефтепродуктов может быть использовано для проверки диспергирующей способности микроорганизмов Rhodococcus X5 или S67 и молекул гуминовых кислот. Установлено, что биокомпозиция на основе гуминовых кислот и микроорганизмов-нефтедеструкторов рода Rhodococcus способна адсорбир

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Lee, Soon Dong, In Seop Kim, Young-Ju Kim, and Yochan Joung. "Rhodococcus cavernicola sp. nov., isolated from a cave, and Rhodococcus degradans is a later heterosynonym of Rhodococcus qingshengii." International Journal of Systematic and Evolutionary Microbiology 70, no. 7 (2020): 4409–15. http://dx.doi.org/10.1099/ijsem.0.004126.

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A Gram-reaction-positive, strictly aerobic, catalase-positive, oxidase-negative, non-motile actinobacterium, designated C1-24T, was isolated from a soil sample collected inside a natural cave. The organism exhibited a rod–coccus developmental cycle during its growth phase. Results of 16S rRNA gene-based phylogenetic analysis showed that the novel strain belonged to the genus Rhodococcus and formed a distinct sublineage at the base of the radiation including a Rhodococcus enclensis–Rhodococcus kroppenstedtii–Rhodococcus corynebacterioides–Rhodococcus trifoli cluster. In the results of phylogeno

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Hu, Gang-Ao, Yue Song, Shi-Yi Liu, et al. "Exploring the Diversity and Specificity of Secondary Biosynthetic Potential in Rhodococcus." Marine Drugs 22, no. 9 (2024): 409. http://dx.doi.org/10.3390/md22090409.

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The actinomycete genus Rhodococcus is known for its diverse biosynthetic enzymes, with potential in pollutant degradation, chemical biocatalysis, and natural product exploration. Comparative genomics have analyzed the distribution patterns of non-ribosomal peptide synthetases (NRPSs) in Rhodococcus. The diversity and specificity of its secondary metabolism offer valuable insights for exploring natural products, yet remain understudied. In the present study, we analyzed the distribution patterns of biosynthetic gene clusters (BGCs) in the most comprehensive Rhodococcus genome data to date. The

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Mayilraj, S., S. Krishnamurthi, P. Saha, and H. S. Saini. "Rhodococcus kroppenstedtii sp. nov., a novel actinobacterium isolated from a cold desert of the Himalayas, India." International Journal of Systematic and Evolutionary Microbiology 56, no. 5 (2006): 979–82. http://dx.doi.org/10.1099/ijs.0.63831-0.

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The taxonomic position of an actinomycete, strain K07-23T, isolated from a cold desert of the Himalayas, India, was established by a polyphasic approach. The strain exhibited phenotypic characters that were typical of the genus Rhodococcus. 16S rRNA gene sequence (1467 bases) comparisons confirmed that strain K07-23T belongs to the genus Rhodococcus. 16S rRNA sequence similarity studies showed that the isolate is very closely related to Nocardia corynebacterioides DSM 20151T (98.6 %), which has been recently reclassified as Rhodococcus corynebacterioides. It showed 94.4–96.6 % sequence similar

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Shimizu, Satoru, Hiroyuki Kobayashi, Eiji Masai, and Masao Fukuda. "Characterization of the 450-kb Linear Plasmid in a Polychlorinated Biphenyl Degrader, Rhodococcus sp. Strain RHA1." Applied and Environmental Microbiology 67, no. 5 (2001): 2021–28. http://dx.doi.org/10.1128/aem.67.5.2021-2028.2001.

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ABSTRACT A strong polychlorinated biphenyl (PCB) degrader,Rhodococcus sp. strain RHA1, has diverse biphenyl/PCB degradative genes and harbors huge linear plasmids, including pRHL1 (1,100 kb), pRHL2 (450 kb), and pRHL3 (330 kb). The diverse degradative genes are distributed mainly on the pRHL1 and pRHL2 plasmids. In this study, the structural and functional characteristics of pRHL2 were determined. We constructed a physical map of pRHL2, and the degradative enzyme genes, including bphB2, etbD2, etbC, bphDEF, bphC2, and bphC4, were localized in three regions. Conjugal transfer of pRHL2 between R

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Xu, Jing-Liang, Jian He, Zhi-Chun Wang, et al. "Rhodococcus qingshengii sp. nov., a carbendazim-degrading bacterium." International Journal of Systematic and Evolutionary Microbiology 57, no. 12 (2007): 2754–57. http://dx.doi.org/10.1099/ijs.0.65095-0.

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A Gram-positive, aerobic, non-motile, mesophilic strain, djl-6T, able to degrade carbendazim, was isolated from a carbendazim-contaminated soil sample from Jiangsu province, China. The taxonomic position of this isolate was analysed by using a polyphasic approach. Chemotaxonomic analysis including peptidoglycan type, diagnostic sugar composition, fatty acid profile, menaquinones, polar lipids and mycolic acids showed that the characteristics of strain djl-6T were in good agreement with those of the genus Rhodococcus. DNA–DNA hybridization showed that it had low genomic relatedness with Rhodoco

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