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Succession and Persistence of Microbial Communities and Antimicrobial Resistance Genes Associated with International Space Stati
Singh et al. Microbiome (2018) 6:204 https://doi.org/10.1186/s40168-018-0585-2 RESEARCH Open Access Succession and persistence of microbial communities and antimicrobial resistance genes associated with International Space Station environmental surfaces Nitin Kumar Singh1, Jason M. Wood1, Fathi Karouia2,3 and Kasthuri Venkateswaran1* Abstract Background: The International Space Station (ISS) is an ideal test bed for studying the effects of microbial persistence and succession on a closed system during long space flight. Culture-based analyses, targeted gene-based amplicon sequencing (bacteriome, mycobiome, and resistome), and shotgun metagenomics approaches have previously been performed on ISS environmental sample sets using whole genome amplification (WGA). However, this is the first study reporting on the metagenomes sampled from ISS environmental surfaces without the use of WGA. Metagenome sequences generated from eight defined ISS environmental locations in three consecutive flights were analyzed to assess the succession and persistence of microbial communities, their antimicrobial resistance (AMR) profiles, and virulence properties. Metagenomic sequences were produced from the samples treated with propidium monoazide (PMA) to measure intact microorganisms. Results: The intact microbial communities detected in Flight 1 and Flight 2 samples were significantly more similar to each other than to Flight 3 samples. Among 318 microbial species detected, 46 species constituting 18 genera were common in all flight samples. Risk group or biosafety level 2 microorganisms that persisted among all three flights were Acinetobacter baumannii, Haemophilus influenzae, Klebsiella pneumoniae, Salmonella enterica, Shigella sonnei, Staphylococcus aureus, Yersinia frederiksenii,andAspergillus lentulus.EventhoughRhodotorula and Pantoea dominated the ISS microbiome, Pantoea exhibited succession and persistence. K. pneumoniae persisted in one location (US Node 1) of all three flights and might have spread to six out of the eight locations sampled on Flight 3. -
Artus Mycobac. Diff. LC PCR Kit Handbook 10/2015 2
October 2015 artus® Mycobac. diff. LC PCR Kit Handbook 24 96 Version 1 Quantitative in vitro diagnostics For use with the LightCycler® 1.1/1.2/1.5 and LightCycler 2.0 instruments 4556063 (24 reactions) 4556065 (96 reactions) QIAGEN GmbH QIAGEN Strasse 1 40724 Hilden GERMANY R4 1046963EN Sample to Insight__ Contents Summary and Explanation ...................................................................................................4 Principle of the Procedure ....................................................................................................4 Materials Provided .............................................................................................................6 Kit contents ..............................................................................................................6 Materials Required but Not Provided ....................................................................................7 Warnings and Precautions ..................................................................................................8 Warnings ................................................................................................................8 Reagent Storage and Handling ............................................................................................8 Procedure ..........................................................................................................................9 Important points before starting ..................................................................................9 -
A Moderately Boron-Tolerant Candidatus Novel Soil Bacterium Lysinibacillus Pakistanensis Sp
Pak. J. Bot., 45(SI): 41-50, January 2013. A MODERATELY BORON-TOLERANT CANDIDATUS NOVEL SOIL BACTERIUM LYSINIBACILLUS PAKISTANENSIS SP. NOV. CAND., ISOLATED FROM SOYBEAN (GLYCINE MAX L.) RHIZOSPHERE RIFAT HAYAT1,2,3*, IFTIKHAR AHMED2*, JAYOUNG PAEK4, MUHAMMAD EHSAN1, 2, MUHAMMAD IQBAL2 AND YOUNG H. CHANG4* 1Department of Soil Science & SWC, PMAS Arid Agriculture University, Rawalpindi, 46300, Pakistan 2Plant Biotechnology Program, National Institute for Genomics and Advanced Biotechnology (NIGAB), National Agricultural Research Center (NARC), Park Road, Islamabad-45500, Pakistan 3Institute of Molecular and Cellular Biosciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan 4Korean Collection of Type Cultures, Biological Resource Center, KRIBB, 52 Oeundong, Daejeon 305-806, Republic of Korea *Correspondence E-mail: [email protected]; [email protected]; [email protected] Abstract A Gram-positive, motile, rod-shaped, endospore-forming and moderately boron (B) tolerant novel candidatus strain, designated as NCCP-54T, was isolated from rhizospheric soil of soybean (Glycine max L.) sampled from the experimental area of Research Farm, PMAS Arid Agriculture University, Rawalpindi, Pakistan. To delineate its taxonomic position, the strain was subject to polyphasic characterization. Cells of the strain NCCP-54T can grow at 10-45○C (optimum at 28○C) at pH ranges of 6.5-9.0 (optimum at pH 7.0) and in 0-6% NaCl (w/v) in tryptic soya agar medium. It can also tolerate 150 mM boric acid in agar medium; however, optimum growth occurs in the absence of boric acid. Based on 16S rRNA gene sequence analysis, strain NCCP-54T showed highest similarity to Lysinibacillus xylanilyticus KCTC13423T (99.1%), Lysinibacillus fusiformis KCTC3454T (98.5%), Lysinibacillus boronitolerans KCTC13709T (98.4%), Lysinibacillus parviboronicapiens KCTC13154T (97.8%), and Lysinibacillus sphaericus KCTC3346T (97.5%) and less than 97% with other closely related taxa. -
ID 2 | Issue No: 4.1 | Issue Date: 29.10.14 | Page: 1 of 24 © Crown Copyright 2014 Identification of Corynebacterium Species
UK Standards for Microbiology Investigations Identification of Corynebacterium species Issued by the Standards Unit, Microbiology Services, PHE Bacteriology – Identification | ID 2 | Issue no: 4.1 | Issue date: 29.10.14 | Page: 1 of 24 © Crown copyright 2014 Identification of Corynebacterium species Acknowledgments UK Standards for Microbiology Investigations (SMIs) are developed under the auspices of Public Health England (PHE) working in partnership with the National Health Service (NHS), Public Health Wales and with the professional organisations whose logos are displayed below and listed on the website https://www.gov.uk/uk- standards-for-microbiology-investigations-smi-quality-and-consistency-in-clinical- laboratories. SMIs are developed, reviewed and revised by various working groups which are overseen by a steering committee (see https://www.gov.uk/government/groups/standards-for-microbiology-investigations- steering-committee). The contributions of many individuals in clinical, specialist and reference laboratories who have provided information and comments during the development of this document are acknowledged. We are grateful to the Medical Editors for editing the medical content. For further information please contact us at: Standards Unit Microbiology Services Public Health England 61 Colindale Avenue London NW9 5EQ E-mail: [email protected] Website: https://www.gov.uk/uk-standards-for-microbiology-investigations-smi-quality- and-consistency-in-clinical-laboratories UK Standards for Microbiology Investigations are produced in association with: Logos correct at time of publishing. Bacteriology – Identification | ID 2 | Issue no: 4.1 | Issue date: 29.10.14 | Page: 2 of 24 UK Standards for Microbiology Investigations | Issued by the Standards Unit, Public Health England Identification of Corynebacterium species Contents ACKNOWLEDGMENTS ......................................................................................................... -
The Oral Microbiome of Healthy Japanese People at the Age of 90
applied sciences Article The Oral Microbiome of Healthy Japanese People at the Age of 90 Yoshiaki Nomura 1,* , Erika Kakuta 2, Noboru Kaneko 3, Kaname Nohno 3, Akihiro Yoshihara 4 and Nobuhiro Hanada 1 1 Department of Translational Research, Tsurumi University School of Dental Medicine, Kanagawa 230-8501, Japan; [email protected] 2 Department of Oral bacteriology, Tsurumi University School of Dental Medicine, Kanagawa 230-8501, Japan; [email protected] 3 Division of Preventive Dentistry, Faculty of Dentistry and Graduate School of Medical and Dental Science, Niigata University, Niigata 951-8514, Japan; [email protected] (N.K.); [email protected] (K.N.) 4 Division of Oral Science for Health Promotion, Faculty of Dentistry and Graduate School of Medical and Dental Science, Niigata University, Niigata 951-8514, Japan; [email protected] * Correspondence: [email protected]; Tel.: +81-45-580-8462 Received: 19 August 2020; Accepted: 15 September 2020; Published: 16 September 2020 Abstract: For a healthy oral cavity, maintaining a healthy microbiome is essential. However, data on healthy microbiomes are not sufficient. To determine the nature of the core microbiome, the oral-microbiome structure was analyzed using pyrosequencing data. Saliva samples were obtained from healthy 90-year-old participants who attended the 20-year follow-up Niigata cohort study. A total of 85 people participated in the health checkups. The study population consisted of 40 male and 45 female participants. Stimulated saliva samples were obtained by chewing paraffin wax for 5 min. The V3–V4 hypervariable regions of the 16S ribosomal RNA (rRNA) gene were amplified by PCR. -
Kaistella Soli Sp. Nov., Isolated from Oil-Contaminated Soil
A001 Kaistella soli sp. nov., Isolated from Oil-contaminated Soil Dhiraj Kumar Chaudhary1, Ram Hari Dahal2, Dong-Uk Kim3, and Yongseok Hong1* 1Department of Environmental Engineering, Korea University Sejong Campus, 2Department of Microbiology, School of Medicine, Kyungpook National University, 3Department of Biological Science, College of Science and Engineering, Sangji University A light yellow-colored, rod-shaped bacterial strain DKR-2T was isolated from oil-contaminated experimental soil. The strain was Gram-stain-negative, catalase and oxidase positive, and grew at temperature 10–35°C, at pH 6.0– 9.0, and at 0–1.5% (w/v) NaCl concentration. The phylogenetic analysis and 16S rRNA gene sequence analysis suggested that the strain DKR-2T was affiliated to the genus Kaistella, with the closest species being Kaistella haifensis H38T (97.6% sequence similarity). The chemotaxonomic profiles revealed the presence of phosphatidylethanolamine as the principal polar lipids;iso-C15:0, antiso-C15:0, and summed feature 9 (iso-C17:1 9c and/or C16:0 10-methyl) as the main fatty acids; and menaquinone-6 as a major menaquinone. The DNA G + C content was 39.5%. In addition, the average nucleotide identity (ANIu) and in silico DNA–DNA hybridization (dDDH) relatedness values between strain DKR-2T and phylogenically closest members were below the threshold values for species delineation. The polyphasic taxonomic features illustrated in this study clearly implied that strain DKR-2T represents a novel species in the genus Kaistella, for which the name Kaistella soli sp. nov. is proposed with the type strain DKR-2T (= KACC 22070T = NBRC 114725T). [This study was supported by Creative Challenge Research Foundation Support Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF- 2020R1I1A1A01071920).] A002 Chitinibacter bivalviorum sp. -
Proposal of Two New Species in the Genus Microbacterium Dextranolyticum Sp. Microbacterium
INTERNATIONALJOURNAL OF SYSTEMATICBACTERIOLOGY, July 1993, p. 549-554 Vol. 43, No. 3 0020-7713/93/030549-06$02.00/0 Copyright 0 1993, International Union of Microbiological Societies Proposal of Two New Species in the Genus Microbacterium : Microbacterium dextranolyticum sp. nov. and Microbacterium aurum sp. nov. AKIRA YOKOTA,l* MARIKO TAKEUCH1,l AND NOBERT WEISS2 Institute for Fermentation, Osaka, 17-85, Juso-honmachi 2-chome, Yodogawa-ku, Osaka 532, Japan, and Deutsche Sammlung von Mikroolganismen und Zellkulturen 0-3300 Braunschweig, Germany2 The taxonomic positions of Flavobacterium sp. strain IF0 14592= (= M-73T) (T = type strain), a dextran-a-l,2-debranchingenzyme producer, and Microbacterium sp. strain IF0 15204T (= H-5T), an isolate obtained from corn steep liquor, were investigated; on the basis of the results of chemotaxonomic and phenetic studies and DNA-DNA similarity data, we propose that these bacteria should be classified in the genus Microbacterium as Microbacterium dextranolyticum sp. nov. and Microbacterium aurum sp. nov., respectively. The type strain of M. dextranolyticum is strain IF0 14592, and the type strain of M. aurum is strain IF0 15204. The genus Microbacterium was proposed by Orla-Jensen of 1% tetramethyl-p-phenylenediamineon filter paper. Acid (15), and its description was emended by Collins et al. (1). production from carbohydrates was studied in a medium Four species have been described previously: Microbacte- containing 0.3% peptone, 0.25% NaCl, 0.003% bromcresol rium lacticum, Microbacterium imperiale, Microbacterium purple, and 0.5% carbohydrate (pH 7.2). Assimilation of laevaniformans, and Microbacterium arborescens (1, 5, 6). organic acids was studied in a medium containing 0.5% During a taxonomic study of Flavobacterium strains in the organic acid (sodium salt), 0.02% D-glucose, 0.01% yeast Institute for Fermentation at Osaka (IFO) culture collection, extract, 0.01% peptone, 0.01% Bacto brain heart infusion, we found that Flavobacterium sp. -
Bacillus Safensis FO-36B and Bacillus Pumilus SAFR-032: a Whole Genome Comparison of Two Spacecraft Assembly Facility Isolates
bioRxiv preprint doi: https://doi.org/10.1101/283937; this version posted April 24, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Bacillus safensis FO-36b and Bacillus pumilus SAFR-032: A Whole Genome 2 Comparison of Two Spacecraft Assembly Facility Isolates 3 Madhan R Tirumalai1, Victor G. Stepanov1, Andrea Wünsche1, Saied Montazari1, 4 Racquel O. Gonzalez1, Kasturi Venkateswaran2, George. E. Fox1§ 5 1Department of Biology and Biochemistry, University of Houston, Houston, TX, 77204-5001. 6 2 Biotechnology & Planetary Protection Group, NASA Jet Propulsion Laboratories, California 7 Institute of Technology, Pasadena, CA, 91109. 8 9 §Corresponding author: 10 Dr. George E. Fox 11 Dept. Biology & Biochemistry 12 University of Houston, Houston, TX 77204-5001 13 713-743-8363; 713-743-8351 (FAX); email: [email protected] 14 15 Email addresses: 16 MRT: [email protected] 17 VGS: [email protected] 18 AW: [email protected] 19 SM: [email protected] 20 ROG: [email protected] 21 KV: [email protected] 22 GEF: [email protected] 1 bioRxiv preprint doi: https://doi.org/10.1101/283937; this version posted April 24, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 23 Keywords: Planetary protection, Bacillus endospores, extreme radiation resistance, peroxide 24 resistance, genome comparison, phage insertions 25 26 Background 27 Microbial persistence in built environments such as spacecraft cleanroom facilities [1-3] is often 28 characterized by their unusual resistances to different physical and chemical factors [1, 4-7]. -
Comparative Genomics of Staphylococcus Reveals Determinants of Speciation and Diversification of Antimicrobial Defense
1 Comparative Genomics of Staphylococcus Reveals Determinants of 2 Speciation and Diversification of Antimicrobial Defense. 3 4 5 Rosanna Coates-Brown1§, Josephine Moran1, Pisut Pongchaikul1¶, Alistair Darby1 and 6 Malcolm J. Horsburgh1* 7 8 9 10 11 12 1Institute of Integrative Biology, University of Liverpool, Liverpool, Merseyside, United 13 Kingdom. 14 15 § Present address: Genomic Diagnostic Laboratory, St Mary’s Hospital, Oxford Road, 16 Manchester, UK 17 ¶Present address: Faculty of Medicine Ramathibodi Hospital, Mahidol University, 270 18 Rama IV Road, Ratchathewi, Bangkok, 10400, Thailand 19 20 21 * Corresponding author: Institute of Integrative Biology, University of Liverpool, 22 Liverpool, L69 7ZB, United Kingdom. 23 Email: [email protected] 24 Tel: +44 1517954569 25 Fax +44 1517954410 26 Abstract 27 The bacterial genus Staphylococcus comprises diverse species with most being described 28 as colonizers of human and animal skin. A relational analysis of features that 29 discriminate its species and contribute to niche adaptation and survival remains to be fully 30 described. In this study, an interspecies, whole-genome comparative analysis of 21 31 Staphylococcus species was performed based on their orthologues. Three well-defined 32 multi-species groups were identified: group A (including aureus/epidermidis); group B 33 (including saprophyticus/xylosus) and group C (including pseudintermedius/delphini). 34 The machine learning algorithm Random Forest was applied to prioritise orthologues that 35 drive formation of the Staphylococcus species groups A-C. Orthologues driving 36 staphylococcal intrageneric diversity comprised regulatory, metabolic and antimicrobial 37 resistance proteins. Notably, the BraSR (NsaRS) two-component system (TCS) and its 38 associated BraDE transporters that regulate antimicrobial resistance showed limited 39 Distribution in the genus and their presence was most closely associated with a subset of 40 Staphylococcus species dominated by those that colonise human skin. -
Laboratory Exercises in Microbiology: Discovering the Unseen World Through Hands-On Investigation
City University of New York (CUNY) CUNY Academic Works Open Educational Resources Queensborough Community College 2016 Laboratory Exercises in Microbiology: Discovering the Unseen World Through Hands-On Investigation Joan Petersen CUNY Queensborough Community College Susan McLaughlin CUNY Queensborough Community College How does access to this work benefit ou?y Let us know! More information about this work at: https://academicworks.cuny.edu/qb_oers/16 Discover additional works at: https://academicworks.cuny.edu This work is made publicly available by the City University of New York (CUNY). Contact: [email protected] Laboratory Exercises in Microbiology: Discovering the Unseen World through Hands-On Investigation By Dr. Susan McLaughlin & Dr. Joan Petersen Queensborough Community College Laboratory Exercises in Microbiology: Discovering the Unseen World through Hands-On Investigation Table of Contents Preface………………………………………………………………………………………i Acknowledgments…………………………………………………………………………..ii Microbiology Lab Safety Instructions…………………………………………………...... iii Lab 1. Introduction to Microscopy and Diversity of Cell Types……………………......... 1 Lab 2. Introduction to Aseptic Techniques and Growth Media………………………...... 19 Lab 3. Preparation of Bacterial Smears and Introduction to Staining…………………...... 37 Lab 4. Acid fast and Endospore Staining……………………………………………......... 49 Lab 5. Metabolic Activities of Bacteria…………………………………………….…....... 59 Lab 6. Dichotomous Keys……………………………………………………………......... 77 Lab 7. The Effect of Physical Factors on Microbial Growth……………………………... 85 Lab 8. Chemical Control of Microbial Growth—Disinfectants and Antibiotics…………. 99 Lab 9. The Microbiology of Milk and Food………………………………………………. 111 Lab 10. The Eukaryotes………………………………………………………………........ 123 Lab 11. Clinical Microbiology I; Anaerobic pathogens; Vectors of Infectious Disease….. 141 Lab 12. Clinical Microbiology II—Immunology and the Biolog System………………… 153 Lab 13. Putting it all Together: Case Studies in Microbiology…………………………… 163 Appendix I. -
Staphylococcus Edaphicus Sp
EVOLUTIONARY AND GENOMIC MICROBIOLOGY crossm Staphylococcus edaphicus sp. nov., Isolated in Antarctica, Harbors the mecC Gene and Genomic Islands with a Suspected Role in Adaptation to Extreme Environments Roman Pantu˚cˇek,a Ivo Sedlácˇek,b Adéla Indráková,a Veronika Vrbovská,a,b Ivana Mašlanˇová,a Vojteˇch Kovarˇovic,a Pavel Švec,b Stanislava Králová,b Lucie Krištofová,b Jana Kekláková,c Petr Petráš,c Jirˇí Doškarˇa aDivision of Genetics and Molecular Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic bCzech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic cReference Laboratory for Staphylococci, National Institute of Public Health, Prague, Czech Republic ABSTRACT Two Gram-stain-positive, coagulase-negative staphylococcal strains were isolated from abiotic sources comprising stone fragments and sandy soil in James Ross Island, Antarctica. Here, we describe properties of a novel species of the genus Staphylococcus that has a 16S rRNA gene sequence nearly identical to that of Staph- ylococcus saprophyticus. However, compared to S. saprophyticus and the next closest relatives, the new species demonstrates considerable phylogenetic distance at the whole-genome level, with an average nucleotide identity of Ͻ85% and inferred DNA-DNA hybridization of Ͻ30%. It forms a separate branch in the S. saprophyticus phylogenetic clade as confirmed by multilocus sequence analysis of six housekeep- ing genes, rpoB, hsp60, tuf, dnaJ, gap, and sod. Matrix-assisted laser desorption ion- ization–time of flight mass spectrometry (MALDI-TOF MS) and key biochemical charac- teristics allowed these bacteria to be distinguished from their nearest phylogenetic neighbors. In contrast to S. -
INFECTIOUS DISEASES NEWSLETTER May 2017 T. Herchline, Editor LOCAL NEWS ID Fellows Our New Fellow Starting in July Is Dr. Najmus
INFECTIOUS DISEASES NEWSLETTER May 2017 T. Herchline, Editor LOCAL NEWS ID Fellows Our new fellow starting in July is Dr. Najmus Sahar. Dr. Sahar graduated from Dow Medical College in Pakistan in 2009. She works in Dayton, OH and completed residency training from the Wright State University Internal Medicine Residency Program in 2016. She is married to Dr. Asghar Ali, a hospitalist in MVH and mother of 3 children Fawad, Ebaad and Hammad. She spends most of her spare time with family in outdoor activities. Dr Alpa Desai will be at Miami Valley Hospital in May and June, and at the VA Medical Center in July. Dr Luke Onuorah will be at the VA Medical Center in May and June, and at Miami Valley Hospital in July. Dr. Najmus Sahar will be at MVH in July. Raccoon Rabies Immune Barrier Breach, Stark County Two raccoons collected this year in Stark County have been confirmed by the Centers of Disease Control and Prevention to be infected with the raccoon rabies variant virus. These raccoons were collected outside the Oral Rabies Vaccination (ORV) zone and represent the first breach of the ORV zone since a 2004 breach in Lake County. In 1997, a new strain of rabies in wild raccoons was introduced into northeastern Ohio from Pennsylvania. The Ohio Department of Health and other partner agencies implemented a program to immunize wild raccoons for rabies using an oral rabies vaccine. This effort created a barrier of immune animals that reduced animal cases and prevented the spread of raccoon rabies into the rest of Ohio.