Bacterial Endophytes of Plants Used for Soil Reclamation
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Responses to Ecopollutants and Pathogenization Risks of Saprotrophic Rhodococcus Species
pathogens Review Responses to Ecopollutants and Pathogenization Risks of Saprotrophic Rhodococcus Species Irina B. Ivshina 1,2,*, Maria S. Kuyukina 1,2 , Anastasiia V. Krivoruchko 1,2 and Elena A. Tyumina 1,2 1 Perm Federal Research Center UB RAS, Institute of Ecology and Genetics of Microorganisms UB RAS, 13 Golev Str., 614081 Perm, Russia; [email protected] (M.S.K.); [email protected] (A.V.K.); [email protected] (E.A.T.) 2 Department of Microbiology and Immunology, Perm State University, 15 Bukirev Str., 614990 Perm, Russia * Correspondence: [email protected]; Tel.: +7-342-280-8114 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. Citation: Ivshina, I.B.; Kuyukina, Keywords: actinobacteria; Rhodococcus; pathogenicity factors; adhesion; autoaggregation; colonization; M.S.; Krivoruchko, A.V.; Tyumina, defense against phagocytosis; adaptive strategies E.A. -
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Kent Academic Repository Full text document (pdf) Citation for published version Wichner, Dominik and Idris, Hamidah and Houssen, Wael E and McEwan, Andrew R and Bull, Alan T. and Asenjo, Juan A and Goodfellow, Michael and Jaspars, Marcel and Ebel, Rainer and Rateb, Mostafa E (2016) Isolation and anti-HIV-1 integrase activity of lentzeosides A–F from extremotolerant lentzea sp. H45, a strain isolated from a high-altitude Atacama Desert soil. The DOI https://doi.org/10.1038/ja.2016.78 Link to record in KAR https://kar.kent.ac.uk/61946/ Document Version Author's Accepted Manuscript Copyright & reuse Content in the Kent Academic Repository is made available for research purposes. Unless otherwise stated all content is protected by copyright and in the absence of an open licence (eg Creative Commons), permissions for further reuse of content should be sought from the publisher, author or other copyright holder. Versions of research The version in the Kent Academic Repository may differ from the final published version. Users are advised to check http://kar.kent.ac.uk for the status of the paper. Users should always cite the published version of record. Enquiries For any further enquiries regarding the licence status of this document, please contact: [email protected] If you believe this document infringes copyright then please contact the KAR admin team with the take-down information provided at http://kar.kent.ac.uk/contact.html 1 Isolation and Anti-HIV-1 Integrase Activity of Lentzeosides A-F from Extremotolerant 2 Lentzea sp. H45, a strain isolated from a high altitude Atacama Desert soil 3 Running head: Lentzeosides A-F from Extremotolerant Lentzea sp. -
Biotechnological Potential of Rhodococcus Biodegradative Pathways Dockyu Kim1*, Ki Young Choi2, Miyoun Yoo3, Gerben J
J. Microbiol. Biotechnol. (2018), 28(7), 1037–1051 https://doi.org/10.4014/jmb.1712.12017 Research Article Review jmb Biotechnological Potential of Rhodococcus Biodegradative Pathways Dockyu Kim1*, Ki Young Choi2, Miyoun Yoo3, Gerben J. Zylstra4, and Eungbin Kim5 1Division of Polar Life Sciences, Korea Polar Research Institute, Incheon 21990, Republic of Korea 2University College, Yonsei University, Incheon 21983, Republic of Korea 3Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea 4Department of Biochemistry and Microbiology, School of Environmental and Biological Sciences, Rutgers University, NJ 08901-8520, USA 5Department of Systems Biology, Yonsei University, Seoul 03722, Republic of Korea Received: December 8, 2017 Revised: March 26, 2018 The genus Rhodococcus is a phylogenetically and catabolically diverse group that has been Accepted: May 1, 2018 isolated from diverse environments, including polar and alpine regions, for its versatile ability First published online to degrade a wide variety of natural and synthetic organic compounds. Their metabolic May 8, 2018 capacity and diversity result from their diverse catabolic genes, which are believed to be *Corresponding author obtained through frequent recombination events mediated by large catabolic plasmids. Many Phone: +82-32-760-5525; rhodococci have been used commercially for the biodegradation of environmental pollutants Fax: +82-32-760-5509; E-mail: [email protected] and for the biocatalytic production of high-value chemicals from low-value materials. -
The Degradative Capabilities of New Amycolatopsis Isolates on Polylactic Acid
microorganisms Article The Degradative Capabilities of New Amycolatopsis Isolates on Polylactic Acid Francesca Decorosi 1,2, Maria Luna Exana 1,2, Francesco Pini 1,2, Alessandra Adessi 1 , Anna Messini 1, Luciana Giovannetti 1,2 and Carlo Viti 1,2,* 1 Department of Agriculture, Food, Environment and Forestry (DAGRI)—University of Florence, Piazzale delle Cascine 18, I50144 Florence, Italy; francesca.decorosi@unifi.it (F.D.); [email protected] (M.L.E.); francesco.pini@unifi.it (F.P.); alessandra.adessi@unifi.it (A.A.); anna.messini@unifi.it (A.M.); luciana.giovannetti@unifi.it (L.G.) 2 Genexpress Laboratory, Department of Agriculture, Food, Environment and Forestry (DAGRI)—University of Florence, Via della Lastruccia 14, I50019 Sesto Fiorentino, Italy * Correspondence: carlo.viti@unifi.it; Tel.: +39-05-5457-3224 Received: 15 October 2019; Accepted: 18 November 2019; Published: 20 November 2019 Abstract: Polylactic acid (PLA), a bioplastic synthesized from lactic acid, has a broad range of applications owing to its excellent proprieties such as a high melting point, good mechanical strength, transparency, and ease of fabrication. However, the safe disposal of PLA is an emerging environmental problem: it resists microbial attack in environmental conditions, and the frequency of PLA-degrading microorganisms in soil is very low. To date, a limited number of PLA-degrading bacteria have been isolated, and most are actinomycetes. In this work, a method for the selection of rare actinomycetes with extracellular proteolytic activity was established, and the technique was used to isolate four mesophilic actinomycetes with the ability to degrade emulsified PLA in agar plates. All four strains—designated SO1.1, SO1.2, SNC, and SST—belong to the genus Amycolatopsis. -
Genetic Characterisaton of Rhodococcus Rhodochrous ATCC
The copyright of this thesis vests in the author. No quotation from it or information derived from it is to be published without full acknowledgement of the source. The thesis is to be used for private study or non- commercial research purposes only. Published by the University of Cape Town (UCT) in terms of the non-exclusive license granted to UCT by the author. University of Cape Town Genetic characterization of Rhodococcus rhodochrous ATCC BAA-870 with emphasis on nitrile hydrolysing enzymes n ow Joni Frederick A thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy in the Departmentty of of MolecularCape and T Cell Biology, Universitysi of Cape Town er UnivSupervisor: Professor B. T. Sewell Co-supervisor: Professor D. Brady February 2013 Keywords Nitrile hydrolysis Biocatalysis Rhodococcus rhodochrous ATCC BAA-870 Genome sequencing Nitrilase Nitrile hydratase n ow ty of Cape T si er Univ ii Keywords Abstract Rhodococcus rhodochrous ATCC BAA-870 (BAA-870) had previously been isolated on selective media for enrichment of nitrile hydrolysing bacteria. The organism was found to have a wide substrate range, with activity against aliphatics, aromatics, and aryl aliphatics, and enantioselectivity towards beta substituted nitriles and beta amino nitriles, compounds that have potential applications in the pharmaceutical industry. This makes R. rhodochrous ATCC BAA-870 potentially a versatile biocatalyst for the synthesis of a broad range of compounds with amide and carboxylic acid groups that can be derived from structurally related nitrile precursors. The selectivity of biocatalysts allows for high product yields and better atom economyn than non- selective chemical methods of performing this reaction, suchow as acid or base hydrolysis. -
Isolation and Anti-HIV-1 Integrase Activity of Lentzeosides A–F from Extremotolerant Lentzea Sp
The Journal of Antibiotics (2017) 70, 448–453 & 2017 Japan Antibiotics Research Association All rights reserved 0021-8820/17 www.nature.com/ja ORIGINAL ARTICLE Isolation and anti-HIV-1 integrase activity of lentzeosides A–F from extremotolerant lentzea sp. H45, a strain isolated from a high-altitude Atacama Desert soil Dominik Wichner1,2, Hamidah Idris3, Wael E Houssen1,4,5, Andrew R McEwan1,4, Alan T Bull6, Juan A Asenjo7, Michael Goodfellow3, Marcel Jaspars1, Rainer Ebel1 and Mostafa E Rateb1,8,9 The extremotolerant isolate H45 was one of several actinomycetes isolated from a high-altitude Atacama Desert soil collected in northwest Chile. The isolate was identified as a new Lentzea sp. using a combination of chemotaxonomic, morphological and phylogenetic properties. Large scale fermentation of the strain in two different media followed by chromatographic purification led to the isolation of six new diene and monoene glycosides named lentzeosides A–F, together with the known compound (Z)-3-hexenyl glucoside. The structures of the new compounds were confirmed by HRESIMS and NMR analyses. Compounds 1–6 displayed moderate inhibitory activity against HIV integrase. The Journal of Antibiotics (2017) 70, 448–453; doi:10.1038/ja.2016.78; published online 29 June 2016 INTRODUCTION extreme hyper-arid soils.8,9 Biological and genome-guided screening of Natural products are known to be a rich source of diverse chemical some of these actinomycetes has led to the isolation and characteriza- scaffolds for drug discovery. However, their use has diminished in the tion of new natural products belonging to diverse structural classes past two decades, mainly due to technical barriers when screening and exhibiting various biological activities, as exemplified by the natural products in high-throughput assays against molecular targets antimicrobial chaxamycins and chaxalactins isolated from Streptomyces and to their limited availability for clinical trials.1 In addition, the leeuwenhoekii C34T, the abenquines from Streptomyces sp. -
Pairwise Testing of Lentzea Strains Against Mycobacterium Smegmatis to Search for and Identify New Anti-Tuberculosis Compounds
Pairwise testing of Lentzea strains against Mycobacterium smegmatis to search for and identify new anti-tuberculosis compounds By: Julie Anne Dayrit A Thesis Submitted to Saint Mary’s University, Halifax, Nova Scotia In Partial Fulfilment of the Requirements for the Degree of Bachelor of Science with Honours in Chemistry April 2020, Halifax, Nova Scotia Copyright Julie Anne Dayrit, 2020 ___________________ Approved: Dr. Clarissa Sit Supervisor ___________________ Approved: Dr. Jason Masuda Department Chair Date: April 2020 1 | P a g e Pairwise testing of Lentzea strains against Mycobacterium smegmatis to search for and identify new anti-tuberculosis compounds By Julie Anne Dayrit Abstract Tuberculosis remains one of the top ten causes of death worldwide. Therefore, immediate discovery of new antibiotic compounds is crucial for counteracting the evolving antibiotic resistance in strains of Mycobacterium tuberculosis and related species. Previous studies have shown that a soil bacterium, Lentzea kentuckyensis, can biosynthesize lassomycin, a peptide that has the ability to kill multi-drug resistant M. tuberculosis. Two Lentzea strains were grown and observed to exhibit inhibitory activity against M. smegmatis. The active compounds were extracted and analyzed by mass spectrometry. Structure elucidation of the molecules by NMR spectroscopy is ongoing. Further studies will focus on determining the mechanism of action of the active compounds. Characterizing these metabolites will provide a better understanding of how Lentzea strains both interact with and defend themselves against competing microbes, such as mycobacteria. March 2020 2 | P a g e Acknowledgements I would like to thank my amazing research supervisor, Dr. Clarissa Sit, for her support and guidance during this research project. -
Lentzea Kentuckyensis Sp. Nov., of Equine Origin
9583 International Journal of Systematic and Evolutionary Microbiology (2007), 57, 1780-1783 DOl 10.1 099/ijs.0.64245-0 Lentzea kentuckyensis sp. nov., of equine origin D. P. Labeda, 1 J. M. Donahue,2 S. F. Sells2 and R. M. Kroppenstedt3 Correspondence Microbial Genomics and Bioprocessing Research Unit, National Center for Agricultural Utilization D. P. Labeda Research, USDA - Agricultural Research Service, Peoria, IL 61604, USA [email protected] 2Livestock Disease Diagnostic Center, Department of Veterinary Science, University of Kentucky, Lexington, KY 40511, USA I 3DSMZ - German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany A novel actinomycete, designated strain LDDC 287605T was isolated from an equine placenta during the course of routine diagnostic tests for nocardioform placentitis. In a preliminary study, the strain was observed to be phylogenetically distinct from the genera Crossiella and Amycolatopsis and probably a member of the genus Lentzea. A polyphasic study of strain LDDC 287605T confirmed its identification as a member of Lentzea on the basis of its chemotaxonomic and morphological similarity to all of the known species of the genus. Moreover, the strain could be distinguished from other species with validly published names on the basis of its phylogenetic and physiological characteristics and its fatty acid profile. Therefore strain LDDC 287605T represents a novel species of the genus Lentzea, for which the name Lentzea ken fuckyensis sp. nov. is proposed. The type strain is LDDC 287605T (=NRRL B24416T =DSM 44909T) Nocardioform placentitis is a distinctive type of placentitis UltraClean microbial DNA isolation kits (Mc, Bio I.abora- in horses, in which lesions observed on the chorionic tories), amplified, sequenced according to previously surface of the placenta are associated with Gram-positive, described procedures (Labeda & Kroppenstedt, 2000) and branching micro-organisms that can be recovered upon then deposited in GenBank. -
FINAL REPORT Groundwater Chemistry and Microbial Ecology Effects on Explosives Biodegradation
FINAL REPORT Groundwater Chemistry and Microbial Ecology Effects on Explosives Biodegradation SERDP Project ER-1378 SEPTEMBER 2008 Dr. Mark E. Fuller Dr. Robert J. Steffan Shaw Environmental, Inc. This report was prepared under contract to the Department of Defense Strategic Environmental Research and Development Program (SERDP). The publication of this report does not indicate endorsement by the Department of Defense, nor should the contents be construed as reflecting the official policy or position of the Department of Defense. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the Department of Defense. Final Report Table of Contents List of Abbreviations ····················································································································ii List of Tables ·······························································································································iv List of Figures·····························································································································vii Acknowledgements·······················································································································x I. EXECUTIVE SUMMARY ·······································································································1 II. PROJECT OBJECTIVES·········································································································3 -
Western Bats As a Reservoir of Novel Streptomyces Species with Antifungal Activity
ENVIRONMENTAL MICROBIOLOGY crossm Western Bats as a Reservoir of Novel Streptomyces Species with Antifungal Activity Paris S. Hamm,a Nicole A. Caimi,b Diana E. Northup,b Ernest W. Valdez,c Debbie C. Buecher,d Christopher A. Dunlap,e David P. Labeda,f Shiloh Lueschow,e Downloaded from Andrea Porras-Alfaroa Department of Biological Sciences, Western Illinois University, Macomb, Illinois, USAa; Department of Biology, University of New Mexico, Albuquerque, New Mexico, USAb; U.S. Geological Survey, Fort Collins Science Center, Fort Collins, Colorado, and Department of Biology, University of New Mexico, Albuquerque, New Mexico, USAc; Buecher Biological Consulting, Tucson, Arizona, USAd; Crop Bioprotection Research Unit, U.S. Department of Agriculture, Peoria, Illinois, USAe; Mycotoxin Prevention and Applied Microbiology Research Unit, U.S. Department of Agriculture, Peoria, Illinois, USAf http://aem.asm.org/ ABSTRACT At least two-thirds of commercial antibiotics today are derived from Acti- nobacteria, more specifically from the genus Streptomyces. Antibiotic resistance and Received 7 November 2016 Accepted 13 December 2016 new emerging diseases pose great challenges in the field of microbiology. Cave sys- Accepted manuscript posted online 16 tems, in which actinobacteria are ubiquitous and abundant, represent new opportu- December 2016 nities for the discovery of novel bacterial species and the study of their interactions Citation Hamm PS, Caimi NA, Northup DE, with emergent pathogens. White-nose syndrome is an invasive bat disease caused Valdez EW, Buecher DC, Dunlap CA, Labeda DP, Lueschow S, Porras-Alfaro A. 2017. Western by the fungus Pseudogymnoascus destructans, which has killed more than six million bats as a reservoir of novel Streptomyces bats in the last 7 years. -
Bioconversion of FR901459, a Novel Derivative of Cyclosporin A, by Lentzea Sp
The Journal of Antibiotics (2015) 68, 511–520 & 2015 Japan Antibiotics Research Association All rights reserved 0021-8820/15 www.nature.com/ja ORIGINAL ARTICLE Bioconversion of FR901459, a novel derivative of cyclosporin A, by Lentzea sp. 7887 Satoshi Sasamura1,4, Motoo Kobayashi1, Hideyuki Muramatsu2, Seiji Yoshimura1, Takayoshi Kinoshita1,5, Hidenori Ohki1,6, Kazuki Okada3, Yoko Deai1, Yukiko Yamagishi1 and Michizane Hashimoto2,4 FR901459, a product of the fungus Stachybotrys chartarum No. 19392, is a derivative of cyclosporin A (CsA) and a powerful immunosuppressant that binds cyclophilin. Recently, it was reported that CsA was effective against hepatitis C virus (HCV). However, FR901459 lacks active moieties, which are essential for synthesizing more potent and safer derivatives of this anti-HCV agent. Here we identified an actinomycete strain (designated 7887) that was capable of efficient bioconversion of FR901459. Structural elucidation of the isolated bioconversion products (1–7) revealed that compounds 1–4 were mono-hydroxylated at the position of 1-MeBmt or 9-MeLeu, whereas compounds 5–7 were bis-hydroxylated at both positions. The results of morphological and chemical characterization, as well as phylogenetic analysis of 16S ribosomal DNA (rDNA), suggested that strain 7887 belonged to the genus Lentzea. Comparison of the FR901459 conversion activity of strain 7887 with several other Lentzea strains revealed that although all examined strains metabolized FR901459, strain 7887 had a characteristic profile with respect to bioconversion products. Taken together, these findings suggest that strain 7887 can be used to derivative FR901459 to produce a chemical template for further chemical modifications that may provide more effective and safer anti-HCV drugs. -
Lentzea Gen. Nov., a New Genus of the Order Actinomycetales A
INTERNATIONALJOURNAL OF SYSTEMATICBACTERIOLOGY, Apr. 1995, p. 357-363 Vol. 45, No. 2 0020-7713/95/$04.00+0 Copyright 0 1995, International Union of Microbiological Societies Lentzea gen. nov., a New Genus of the Order Actinomycetales A. F. YASSIN,'" F. A. RAINEY,2 H. BRZEZINKA,3 K.-D. JAHNKE,2 H. WEISSBRODT,4 H. BUDZIKIEWICZ,' E. STACKEBRANDT,2 AND K. P. SCHAAL' Institut fur Medizinische Mikrobiologie und Immunologie der Universitat Bonn, 0-53105 Bonn, DSM-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, 0-38124 Braunschweig, Institut fur Rechtsmedizin der Universitat Bonn, 0-53111 Bonn, Institut fur Medizinische Mikrobiologie der Medizinischen Hochschule Hannover, 3000 Hannover 61, and Institut fur Organische Chemie der Universitat zu Koln, 0-50939 Cologne,' Germany We describe a new genus of mesophilic actinomycetes, for which we propose the name Lentzea. The strains of this genus form abundant aerial hyphae that fragment into rod-shaped elements. Whole-cell hydrolysates contain the meso isomer of diaminopimelic acid and no characteristic sugar (wall chemotype 111). The phospholipid pattern type is type PI1 (phosphatidylethanolamineis the characteristic phospholipid); the major menaquinone is MK-9. The fatty acid profile comprises saturated, unsaturated, and branched-chainfatty acids of the is0 and anteiso types in addition to tuberculostearic acid (lOMe-C,,:,). A 16s ribosomal DNA sequence analysis revealed that the genus Lentzea is phylogenically related to the genera Actinosynnema, Sacchurothrix, and Kutzneria. The type species of this genus is Lentzea albidocupillatu sp. nov.; the type strain of this species is strain IMMIB D-958 (= DSM 44073). Actinomycetes are the causative agents of a variety of dis- Early recognition of the actinomycete infections described eases of humans and animals, among which actinomycosis, above is highly dependent on an at least tentative etiological actinomycetoma, and nocardiosis are the most important (32).