DOCSLIB.ORG

Successful Pathogen : Emergence of a Acinetobacter Baumannii

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Acinetobacter baumannii: Emergence of a Successful Pathogen Anton Y. Peleg, Harald Seifert and David L. Paterson Clin. Microbiol. Rev. 2008, 21(3):538. DOI: 10.1128/CMR.00058-07. Downloaded from Updated information and services can be found at: http://cmr.asm.org/content/21/3/538 These include: http://cmr.asm.org/ REFERENCES This article cites 610 articles, 321 of which can be accessed free at: http://cmr.asm.org/content/21/3/538#ref-list-1 CONTENT ALERTS Receive: RSS Feeds, eTOCs, free email alerts (when new articles cite this article), more» on November 25, 2011 by CONSOL.CAPES-T299093 Information about commercial reprint orders: http://cmr.asm.org/site/misc/reprints.xhtml To subscribe to to another ASM Journal go to: http://journals.asm.org/site/subscriptions/ CLINICAL MICROBIOLOGY REVIEWS, July 2008, p. 538–582 Vol. 21, No. 3 0893-8512/08/$08.00ϩ0 doi:10.1128/CMR.00058-07 Copyright © 2008, American Society for Microbiology. All Rights Reserved. Acinetobacter baumannii: Emergence of a Successful Pathogen Anton Y. Peleg,1* Harald Seifert,2 and David L. Paterson3,4,5 Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts1; Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Goldenfelsstrasse 19-21, 50935 Cologne, Germany2; University of Queensland, Royal Brisbane and Women’s Hospital, Brisbane, Queensland, Australia3; Pathology Queensland, Brisbane, Queensland, 4 5 Australia ; and Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania Downloaded from INTRODUCTION .......................................................................................................................................................539 MICROBIOLOGY ......................................................................................................................................................539 Historical Perspective of the Genus Acinetobacter..............................................................................................539 Current Taxonomy..................................................................................................................................................539 Species Identification .............................................................................................................................................540 Natural Habitats.....................................................................................................................................................541 MECHANISMS OF ANTIBIOTIC RESISTANCE.................................................................................................542 ␤-Lactams ................................................................................................................................................................543 http://cmr.asm.org/ Enzymatic mechanisms ......................................................................................................................................543 Nonenzymatic mechanisms................................................................................................................................545 Aminoglycosides ......................................................................................................................................................546 Quinolones ...............................................................................................................................................................546 Tetracyclines and Glycylcyclines...........................................................................................................................546 Polymyxins ...............................................................................................................................................................546 Other Antibiotics.....................................................................................................................................................547 ANTIBIOTIC SUSCEPTIBILITY TESTING FOR THE CLINICAL MICROBIOLOGY LABORATORY....547 Breakpoints for Various Antibiotics and A. baumannii.....................................................................................547 on November 25, 2011 by CONSOL.CAPES-T299093 Issues for Antibiotic Susceptibility Testing of A. baumannii ............................................................................547 Clinical Laboratory Detection of Carbapenemases ...........................................................................................549 Role of the Clinical Microbiology Laboratory in Providing Surveillance for Multidrug-Resistant A. baumannii .............................................................................................................................................................549 DEFINITIONS OF MULTIDRUG-RESISTANT ACINETOBACTER BAUMANNII..........................................549 GLOBAL EPIDEMIOLOGY OF ACINETOBACTER BAUMANNII.....................................................................549 Europe ......................................................................................................................................................................549 North America.........................................................................................................................................................550 Latin America..........................................................................................................................................................551 Africa ........................................................................................................................................................................552 Asia and the Middle East......................................................................................................................................552 Australia and Pacific Islands................................................................................................................................552 CLINICAL MANIFESTATIONS OF ACINETOBACTER BAUMANNII INFECTIONS..................................................552 Hospital-Acquired Pneumonia ..............................................................................................................................552 Community-Acquired Pneumonia.........................................................................................................................552 Bloodstream Infection ............................................................................................................................................552 Traumatic Battlefield and Other Wounds...........................................................................................................553 UTI............................................................................................................................................................................553 Meningitis ................................................................................................................................................................553 Other Manifestations .............................................................................................................................................553 CLINICAL IMPACT OF ACINETOBACTER BAUMANNII INFECTION...........................................................................553 HOST-PATHOGEN INTERACTIONS INVOLVING ACINETOBACTER ..........................................................555 INFECTION CONTROL PERSPECTIVE ..............................................................................................................556 Why Is A. baumannii a Persistent Hospital Pathogen?.....................................................................................556 Molecular Epidemiologic Techniques ..................................................................................................................557 Plasmid analysis .................................................................................................................................................557 Ribotyping............................................................................................................................................................557 PFGE ....................................................................................................................................................................557 PCR-based typing methods ...............................................................................................................................558 AFLP analysis......................................................................................................................................................558 MLST....................................................................................................................................................................558 * Corresponding author. Mailing address: Division of Infectious Diseases, Beth Israel Deaconess Medical Center and Harvard Medical School, 110 Francis Street, LMOB Suite GB, Boston, MA 02215. Phone: (617) 667-7000. Fax: (617) 632-7626. E-mail: apeleg@bidmc .harvard.edu. 538 VOL. 21, 2008 A. BAUMANNII, A SUCCESSFUL PATHOGEN 539 PCR–ESI-MS.......................................................................................................................................................558 Hospital Outbreaks and Control Measures........................................................................................................559
Recommended publications
  • Characterization and Genomic Analysis of a Diesel-Degrading Bacterium, Acinetobacter Calcoaceticus CA16, Isolated from Canadian Soil Margaret T

    Characterization and Genomic Analysis of a Diesel-Degrading Bacterium, Acinetobacter Calcoaceticus CA16, Isolated from Canadian Soil Margaret T

    Ho et al. BMC Biotechnology (2020) 20:39 https://doi.org/10.1186/s12896-020-00632-z RESEARCH ARTICLE Open Access Characterization and genomic analysis of a diesel-degrading bacterium, Acinetobacter calcoaceticus CA16, isolated from Canadian soil Margaret T. Ho1,2, Michelle S. M. Li1, Tim McDowell3, Jacqueline MacDonald1 and Ze-Chun Yuan1,3* Abstract Background: With the high demand for diesel across the world, environmental decontamination from its improper usage, storage and accidental spills becomes necessary. One highly environmentally friendly and cost-effective decontamination method is to utilize diesel-degrading microbes as a means for bioremediation. Here, we present a newly isolated and identified strain of Acinetobacter calcoaceticus (‘CA16’) as a candidate for the bioremediation of diesel-contaminated areas. Results: Acinetobacter calcoaceticus CA16 was able to survive and grow in minimal medium with diesel as the only source of carbon. We determined through metabolomics that A. calcoaceticus CA16 appears to be efficient at diesel degradation. Specifically, CA16 is able to degrade 82 to 92% of aliphatic alkane hydrocarbons (CnHn +2; where n = 12–18) in 28 days. Several diesel-degrading genes (such as alkM and xcpR) that are present in other microbes were also found to be activated in CA16. Conclusions: The results presented here suggest that Acinetobacter strain CA16 has good potential in the bioremediation of diesel-polluted environments. Keywords: Microbial bioremediation, Acinetobacter calcoaceticus CA16, Diesel-degrading bacteria, Diesel bioremediation, Aliphatic hydrocarbons, n-alkanes Background can be mitigated by microbial bioremediation, which With the high demand for diesel around the world, se- uses microbes to remove pollutants from the environ- vere environmental and ecological problems have arisen ment [3, 4].
  • Evolutionary Genomics of Conjugative Elements and Integrons

    Evolutionary Genomics of Conjugative Elements and Integrons

    Université Paris Descartes École doctorale Interdisciplinaire Européenne 474 Frontières du Vivant Microbial Evolutionary Genomic, Pasteur Institute Evolutionary genomics of conjugative elements and integrons Thèse de doctorat en Biologie Interdisciplinaire Présentée par Jean Cury Pour obtenir le grade de Docteur de l’Université Paris Descartes Sous la direction de Eduardo Rocha Soutenue publiquement le 17 Novembre 2017, devant un jury composé de: Claudine MÉDIGUE Rapporteure CNRS, Genoscope, Évry Marie-Cécile PLOY Rapporteure Université de Limoges Érick DENAMUR Examinateur Université Paris Diderot, Paris Philippe LOPEZ Examinateur Université Pierre et Marie Curie, Paris Alan GROSSMAN Examinateur MIT, Cambdridge, USA Eduardo ROCHA Directeur de thèse CNRS, Institut Pasteur, Paris ِ عمحمود ُبدرويش َالنرد َم ْن انا ِٔ َقول ُلك ْم ما ا ُقول ُلك ْم ؟ وانا لم أ ُك ْن َ َج ًرا َص َق َل ْت ُه ُالمياه َفأ ْص َب َح ِوهاً و َق َصباً َثق َب ْت ُه ُالرياح َفأ ْص َب َح ًنايا ... انا ِع ُب َالن ْرد ، ا َرب ُح يناً وا َس ُر يناً انا ِم ُثل ُك ْم ا وا قل قليً ... The dice player Mahmoud Darwish Who am I to say to you what I am saying to you? I was not a stone polished by water and became a face nor was I a cane punctured by the wind and became a lute… I am a dice player, Sometimes I win and sometimes I lose I am like you or slightly less… Contents Acknowledgments 7 Preamble 9 I Introduction 11 1 Background for friends and family . 13 2 Horizontal Gene Transfer (HGT) . 16 2.1 Mechanisms of horizontal gene transfer .
  • Epidemiological and Molecular Analysis of Virulence and Antibiotic Resistance in Acinetobacter Baumannii

    Epidemiological and Molecular Analysis of Virulence and Antibiotic Resistance in Acinetobacter Baumannii

    UNIVERSIDAD COMPLUTENSE DE MADRID FACULTAD DE VETERINARIA DEPARTAMENTO DE BIOQUÍMICA Y BIOLOGÍA MOLECULAR IV TESIS DOCTORAL Epidemiological and Molecular Analysis of Virulence and Antibiotic Resistance in Acinetobacter baumannii Análisis Epidemiológico y Molecular de la Virulencia y la Antibiorresistencia en Acinetobacter baumannii MEMORIA PARA OPTAR AL GRADO DE DOCTOR PRESENTADA POR Elias Dahdouh DIRECTORA Mónica Suárez Rodríguez Madrid, 2017 © Elias Dahdouh, 2016 UNIVERSIDAD COMPLUTENSE DE MADRID FACULTAD DE VETERINARIA DEPARTAMENTO DE BIOQUIMICA Y BIOLOGIA MOLECULAR IV TESIS DOCTORAL Análisis Epidemiológico y Molecular de la Virulencia y la Antibiorresistencia en Acinetobacter baumannii Epidemiological and Molecular Analysis of Virulence and Antibiotic Resistance in Acinetobacter baumannii MEMORIA PARA OPTAR AL GRADO DE DOCTOR PRESENTADA POR Elias Dahdouh Directora Mónica Suárez Rodríguez Madrid, 2016 UNIVERSIDAD COMPLUTENSE DE MADRID FACULTAD DE VETERINARIA Departamento de Bioquímica y Biología Molecular IV ANALYSIS EPIDEMIOLOGICO Y MOLECULAR DE LA VIRULENCIA Y LA ANTIBIORRESISTENCIA EN Acinetobacter baumannii EPIDEMIOLOGICAL AND MOLECULAR ANALYSIS OF VIRULENCE AND ANTIBIOTIC RESISTANCE IN Acinetobacter baumannii MEMORIA PARA OPTAR AL GRADO DE DOCTOR PRESENTADA POR Elias Dahdouh Bajo la dirección de la doctora Mónica Suárez Rodríguez Madrid, Diciembre de 2016 First and foremost, I would like to thank God for the continued strength and determination that He has given me. I would also like to thank my father Abdo, my brother Charbel, my fiancée, Marisa, and all my friends for their endless support and for standing by me at all times. Moreover, I would like to thank Dra. Monica Suarez Rodriguez and Dr. Ziad Daoud for giving me the opportunity to complete this doctoral study and for their guidance, encouragement, and friendship.
  • Microbial Community Composition During Degradation of Organic Matter

    Microbial Community Composition During Degradation of Organic Matter

    TECHNISCHE UNIVERSITÄT MÜNCHEN Lehrstuhl für Bodenökologie Microbial community composition during degradation of organic matter Stefanie Elisabeth Wallisch Vollständiger Abdruck der von der Fakultät Wissenschaftszentrum Weihenstephan für Ernährung, Landnutzung und Umwelt der Technischen Universität München zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften genehmigten Dissertation. Vorsitzender: Univ.-Prof. Dr. A. Göttlein Prüfer der Dissertation: 1. Hon.-Prof. Dr. M. Schloter 2. Univ.-Prof. Dr. S. Scherer Die Dissertation wurde am 14.04.2015 bei der Technischen Universität München eingereicht und durch die Fakultät Wissenschaftszentrum Weihenstephan für Ernährung, Landnutzung und Umwelt am 03.08.2015 angenommen. Table of contents List of figures .................................................................................................................... iv List of tables ..................................................................................................................... vi Abbreviations .................................................................................................................. vii List of publications and contributions .............................................................................. viii Publications in peer-reviewed journals .................................................................................... viii My contributions to the publications ....................................................................................... viii Abstract
  • BMC Microbiology Biomed Central

    BMC Microbiology Biomed Central

    BMC Microbiology BioMed Central Research article Open Access Bacterial diversity analysis of larvae and adult midgut microflora using culture-dependent and culture-independent methods in lab-reared and field-collected Anopheles stephensi-an Asian malarial vector Asha Rani1, Anil Sharma1, Raman Rajagopal1, Tridibesh Adak2 and Raj K Bhatnagar*1 Address: 1Insect Resistance Group, International Centre for Genetic Engineering and Biotechnology (ICGEB), ICGEB Campus, Aruna Asaf Ali Marg, New Delhi, 110 067, India and 2National Institute of Malaria Research (ICMR), Sector 8, Dwarka, Delhi, 110077, India Email: Asha Rani - [email protected]; Anil Sharma - [email protected]; Raman Rajagopal - [email protected]; Tridibesh Adak - [email protected]; Raj K Bhatnagar* - [email protected] * Corresponding author Published: 19 May 2009 Received: 14 January 2009 Accepted: 19 May 2009 BMC Microbiology 2009, 9:96 doi:10.1186/1471-2180-9-96 This article is available from: http://www.biomedcentral.com/1471-2180/9/96 © 2009 Rani et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Background: Mosquitoes are intermediate hosts for numerous disease causing organisms. Vector control is one of the most investigated strategy for the suppression of mosquito-borne diseases. Anopheles stephensi is one of the vectors of malaria parasite Plasmodium vivax. The parasite undergoes major developmental and maturation steps within the mosquito midgut and little is known about Anopheles-associated midgut microbiota.
  • Identification, Molecular Epidemiology, and Antibiotic Resistance Characterization of Acinetobacter Spp

    Identification, Molecular Epidemiology, and Antibiotic Resistance Characterization of Acinetobacter Spp

    FACULTY OF HEALTH SCIENCES DEPARTMENT OF MEDICAL BIOLOGY UNIVERSITY HOSPITAL OF NORTH NORWAY DEPARTMENT OF MICROBIOLOGY AND INFECTION CONTROL REFERENCE CENTRE FOR DETECTION OF ANTIMICROBIAL RESISTANCE Identification, molecular epidemiology, and antibiotic resistance characterization of Acinetobacter spp. clinical isolates Nabil Karah A dissertation for the degree of Philosophiae Doctor June 2011 Acknowledgments The work presented in this thesis has been carried out between January 2009 and September 2011 at the Reference Centre for Detection of Antimicrobial Resistance (K-res), Department of Microbiology and Infection Control, University Hospital of North Norway (UNN); and the Research Group for Host–Microbe Interactions, Department of Medical Biology, Faculty of Health Sciences, University of Tromsø (UIT), Tromsø, Norway. I would like to express my deep and truthful acknowledgment to my main supervisor Ørjan Samuelsen. His understanding and encouraging supervision played a major role in the success of every experiment of my PhD project. Dear Ørjan, I am certainly very thankful for your indispensible contribution in all the four manuscripts. I am also very grateful to your comments, suggestions, and corrections on the present thesis. I am sincerely grateful to my co-supervisor Arnfinn Sundsfjord for his important contribution not only in my MSc study and my PhD study but also in my entire career as a “Medical Microbiologist”. I would also thank you Arnfinn for your nonstop support during my stay in Tromsø at a personal level. My sincere thanks are due to co-supervisors Kristin Hegstad and Gunnar Skov Simonsen for the valuable advice, productive comments, and friendly support. I would like to thank co-authors Christian G.
  • The Genetic Analysis of an Acinetobacter Johnsonii Clinical Strain Evidenced the Presence of Horizontal Genetic Transfer

    The Genetic Analysis of an Acinetobacter Johnsonii Clinical Strain Evidenced the Presence of Horizontal Genetic Transfer

    RESEARCH ARTICLE The Genetic Analysis of an Acinetobacter johnsonii Clinical Strain Evidenced the Presence of Horizontal Genetic Transfer Sabrina Montaña1, Sareda T. J. Schramm2, German Matías Traglia1, Kevin Chiem1,2, Gisela Parmeciano Di Noto1, Marisa Almuzara3, Claudia Barberis3, Carlos Vay3, Cecilia Quiroga1, Marcelo E. Tolmasky2, Andrés Iriarte4, María Soledad Ramírez1,2* 1 Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPaM, UBA-CONICET), Buenos Aires, Argentina, 2 Department of Biological Science, California State University Fullerton, Fullerton, CA, a11111 United States of America, 3 Laboratorio de Bacteriología Clínica, Departamento de Bioquímica Clínica, Hospital de Clínicas José de San Martín, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina, 4 Departamento de Desarrollo Biotecnológico, Instituto de Higiene, Facultad de Medicina, UdelaR, Montevideo, Uruguay * [email protected] OPEN ACCESS Abstract Citation: Montaña S, Schramm STJ, Traglia GM, Chiem K, Parmeciano Di Noto G, Almuzara M, et al. Acinetobacter johnsonii rarely causes human infections. While most A. johnsonii isolates are (2016) The Genetic Analysis of an Acinetobacter β johnsonii Clinical Strain Evidenced the Presence of susceptible to virtually all antibiotics, strains harboring a variety of -lactamases have Horizontal Genetic Transfer. PLoS ONE 11(8): recently been described. An A. johnsonii Aj2199 clinical strain recovered from a hospital in e0161528. doi:10.1371/journal.pone.0161528 Buenos Aires produces PER-2 and OXA-58. We decided to delve into its genome by obtain- Editor: Ruth Hall, University of Sydney, AUSTRALIA ing the whole genome sequence of the Aj2199 strain. Genome comparison studies on Received: March 23, 2016 Aj2199 revealed 240 unique genes and a close relation to strain WJ10621, isolated from the urine of a patient in China.
  • PDF-Document

    PDF-Document

    SUPPLEMENTARY DATA Characterization of microbial communities associated with ceramic raw materials as potential contributors for the improvement of ceramic rheological properties Angela M. Garcia-Sanchez 1, Bernardino Machado-Moreira 2, Mário Freire 3, Ricardo Santos 3, Sílvia Monteiro 3, Diamantino Dias 4, Orquídia Neves 2, Amélia Dionísio 2 and Ana Z. Miller 5* 1 Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Seville. Profesor García González 2, 41012 Seville, Spain; 2 CERENA, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001, Lisboa, Portugal; 3 Laboratorio de Análises do Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal; 4 Rauschert Portuguesa, SA., Estrada Nacional 249-4, Trajouce, 2785-653 São Domingos de Rana, Portugal; 5 Instituto de Recursos Naturales y Agrobiologia de Sevilla (IRNAS-CSIC), Av. Reina Mercedes 10, 41012 Sevilla, Spain; 6 HERCULES Laboratory, University of Évora, Largo Marquês de Marialva 8, 7000-809 Évora, Portugal. * Correspondence: [email protected] The Supplementary data include: Figure S1. Rarefaction curves. Table S1. Phylogenetic affiliations of the 16S rRNA gene sequences of total bacteria obtained from sample 1A (74 sequences, 64 OTUs). Table S2. Phylogenetic affiliations of the 16S rRNA gene sequences of total bacteria obtained from sample 2B (69 sequences, 51 OTUs). Table S3. Phylogenetic affiliations of the 16S rRNA gene sequences of total bacteria obtained from sample 4D (80 sequences, 54 OTUs). Table S4. Phylogenetic affiliations of the 16S rRNA gene sequences of total bacteria obtained from sample 6F (86 sequences, 38 OTUs). Table S5. Phylogenetic affiliations of the 16S rRNA gene sequences of total bacteria obtained from sample 7G (79 sequences, 48 OTUs).
  • CHAPTER ONE INTRODUCTION 1.1 Background of Study Environment

    CHAPTER ONE INTRODUCTION 1.1 Background of Study Environment

    CHAPTER ONE INTRODUCTION 1.1 Background of study Environment, whether physical, biological or chemical, is composed of discrete components that are either biotic or abiotic, and are extremely related and dependent on each other for optimal functioning. Therefore, any interference with the natural state of these components, especially to an extreme condition, often leads to ecosystem disruption, ecological imbalance/stress and even global deterioration. Such interferences most often stem from the quest to satisfy one need or the other at the expense of another, without due caution on the potential consequences. However, such consequences when they occur have ways of attaining solutions, executing corrections and potentially itching for reclamations. Most environmental consequences arise from the phenomenon known as “Pollution”, which is the occurrence of contaminants within a pre-existing natural environment with the aftermath effect of initiating adverse change. And considering the three basic domains of the earth; air, water and soil, pollution have been an age long concern. Regardless of the source of contaminants or point of contamination, pollution whether it is air, water or soil, can be borderless; hence the reason for the associated global impacts. In fact, air, water and soil pollutions in forms of particulate matter emissions, sea oil spills and polychlorinated biphenyls-impacted soil, respectively abound. These do occur to the magnitude that questions have been asked- ‘what/who is the cause?” Definitely, the answer is humans- the embodiment of the biological part of the ecosystem that is saddled with the utmost responsibility of resource utilization and management. The wants of humans are insatiable and with rapid growth in population, 1 increase in demands and supply become inevitable.
  • Evolution of Acinetobacter Baumannii Infections and Antimicrobial Resistance

    Evolution of Acinetobacter Baumannii Infections and Antimicrobial Resistance

    Central European Journal of Clinical Research Volume 2, Issue 1, Pages 28-36 DOI: 10.2478/cejcr-2019-0005 REVIEW Evolution of Acinetobacter baumannii infections and antimicrobial resistance. A review Sonia Elena Popovici1, Ovidiu Horea Bedreag2, Dorel Sandesc2 1“Pius Branzeu” Emergency County Hospital, Timisoara, Romania 2 Faculty of Medicine, “Victor Babes” Univeristy of Medicine and Pharmacy, Timisoara, Romania Correspondence to: Sonia Elena Popovici, MD Clinic of Anesthesia and Intensive Care “Pius Branzeu” Emergency County Hospital, Timisoara, Romania, Bulevardul Liviu Rebreanu, Nr. 156, Cod 300723, Timișoara E-mail: [email protected] Conflicts of interests Nothing to declare Acknowledgment None Funding: This research did not receive any specific grant from funding agencies in the public, commercial or not-for profit sectors. Keywords: Acinetobacter baumannii, hospital-acquired, antimicrobial resistance. These authors take responsibility for all aspects of the reliability and freedom from bias of the data presented and their discussed interpretation. Central Eur J Clin Res 2019;2(1):28-36 _________________________________________________________________________________ Received: 12.12.2018, Accepted: 15.01.2019, Published: 25.03.2019 Copyright © 2018 Central European Journal of Clinical Research. This is an open-access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. in the hospital environment and the multitude of transmission possibilities raises serious issues Abstract regarding the management of these complex in- fections. The future lies in developing new and The emergence of multi-drug resistant targeted methods for the early diagnosis of A. Acinetobacter spp involved in hospital-acquired baumannii, as well as in the judicious use of an- infections, once considered an easily treatable timicrobial drugs.
  • Characteristics of Bacterial Community in Cloud Water at Mt Tai: Similarity and Disparity Under Polluted and Non-Polluted Cloud Episodes

    Characteristics of Bacterial Community in Cloud Water at Mt Tai: Similarity and Disparity Under Polluted and Non-Polluted Cloud Episodes

    Atmos. Chem. Phys., 17, 5253–5270, 2017 www.atmos-chem-phys.net/17/5253/2017/ doi:10.5194/acp-17-5253-2017 © Author(s) 2017. CC Attribution 3.0 License. Characteristics of bacterial community in cloud water at Mt Tai: similarity and disparity under polluted and non-polluted cloud episodes Min Wei1, Caihong Xu1, Jianmin Chen1,2, Chao Zhu1, Jiarong Li1, and Ganglin Lv1 1Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China 2Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP), Fudan Tyndall Centre, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China Correspondence to: Jianmin Chen ([email protected]) Received: 29 August 2016 – Discussion started: 20 September 2016 Revised: 10 March 2017 – Accepted: 19 March 2017 – Published: 24 April 2017 Abstract. Bacteria are widely distributed in atmospheric pal coordinate analysis (PCoA) indicated a significant dis- aerosols and are indispensable components of clouds, play- parity between polluted and non-polluted samples. Linear ing an important role in the atmospheric hydrological cycle. discriminant analysis effect size (LEfSe) demonstrated that However, limited information is available about the bacte- potential pathogens were enriched in the polluted cloud sam- rial community structure and function, especially for the in- ples, whereas the diverse ecological function groups were creasing air pollution in the North China Plain. Here, we significant in the non-polluted samples. Discrepant commu- present a comprehensive characterization of bacterial com- nity structure determined by redundancy analysis (RDA) in- munity composition, function, variation, and environmental dicated that the major ions in cloud water and PM2:5 in the influence for cloud water collected at Mt Tai from 24 July atmosphere have a negative impact on bacteria, playing a vi- to 23 August 2014.
  • Cryptobranchus Alleganiensis Alleganiensis) in West Virginia Rachel Fern Arrick Arrick1@Marshall.Edu

    Cryptobranchus Alleganiensis Alleganiensis) in West Virginia Rachel Fern Arrick [email protected]

    Marshall University Marshall Digital Scholar Theses, Dissertations and Capstones 2018 Influence of developmental stage, habitat, and captivity on thecutaneous bacterial communities of Eastern Hellbenders (Cryptobranchus Alleganiensis Alleganiensis) in West Virginia Rachel Fern Arrick [email protected] Follow this and additional works at: https://mds.marshall.edu/etd Part of the Animal Sciences Commons, Cell and Developmental Biology Commons, Ecology and Evolutionary Biology Commons, and the Environmental Microbiology and Microbial Ecology Commons Recommended Citation Arrick, Rachel Fern, "Influence of developmental stage, habitat, and captivity on thecutaneous bacterial communities of Eastern Hellbenders (Cryptobranchus Alleganiensis Alleganiensis) in West Virginia" (2018). Theses, Dissertations and Capstones. 1200. https://mds.marshall.edu/etd/1200 This Thesis is brought to you for free and open access by Marshall Digital Scholar. It has been accepted for inclusion in Theses, Dissertations and Capstones by an authorized administrator of Marshall Digital Scholar. For more information, please contact [email protected], [email protected]. INFLUENCE OF DEVELOPMENTAL STAGE, HABITAT, AND CAPTIVITY ON THE CUTANEOUS BACTERIAL COMMUNITIES OF EASTERN HELLBENDERS (CRYPTOBRANCHUS ALLEGANIENSIS ALLEGANIENSIS) IN WEST VIRGINIA. A thesis submitted to the Graduate College of Marshall University In partial fulfillment of the requirements for the degree of Master of Science In Biological Sciences by Rachel Fern Arrick Approved by Dr. Jennifer Mosher,