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Development of a Seroprevalence Map for Mycoplasma Gallisepticum
Original Paper Veterinarni Medicina, 61, 2016 (3): 136–140 doi: 10.17221/8764-VETMED Development of a seroprevalence map for Mycoplasma gallisepticum in broilers and its application to broilers from Comunidad Valenciana (Spain) over the course of two years (2009–2010) C. Garcia1, J.M. Soriano2, P. Catala-Gregori1 1Poultry Quality and Animal Nutrition Center of Comunidad Valenciana (CECAV), Castellon, Spain 2Faculty of Pharmacy, University of Valencia, Burjassot, Spain ABSTRACT: The aim of this study was to design and implement a Seroprevalence Map based on Business Intelligence for Mycoplasma gallisepticum (M. gallisepticum) in broilers in Comunidad Valenciana (Spain). To obtain the sero- logical data we analysed 7363 samples from broiler farms over 30 days of age over the course of two years (3813 and 3550 samples in 2009 and 2010, respectively, from 189 and 193 broiler farms in 2009 and 2010, respectively). Data were represented on a map of Comunidad Valenciana to include geographical information of flock location and to facilitate the monitoring. Only one region presented with average ELISA titre values of over 500 in the 2009 period, indicating previous contact with M. gallisepticum in broiler flocks. None of the other regions showed any pressure of infection, indicating a low seroprevalence for M. gallisepticum. In addition, data from this study represent a novel tool for easy monitoring of the serological response that incorporates geographical information. Keywords: Mycoplasma gallisepticum; broiler; seroprevalence map; ELISA, Comunidad Valenciana Mycoplasma gallisepticum (M. gallisepticum) is a matic for several days or months before experiencing bacterium causing poultry disease that is listed by stress (Dingfelder et al. -
Investigating Prevalence and Geographical Distribution of Mycoplasma Sp. in the Gut of Atlantic Salmon (Salmo Salar L.)
Master’s Thesis 2020 60 ECTS Faculty of Chemistry, Biotechnology and Food Science Investigating prevalence and geographical distribution of Mycoplasma sp. in the gut of Atlantic Salmon (Salmo salar L.) Mari Raudstein MSc Biotechnology ACKNOWLEDGEMENTS This master project was performed at the Faculty of Chemistry, Biotechnology and Food Science, at the Norwegian University of Life Sciences (NMBU), with Professor Knut Rudi as primary supervisor and associate professor Lars-Gustav Snipen as secondary supervisor. To begin with, I want to express my gratitude to my supervisor Knut Rudi for giving me the opportunity to include fish, one of my main interests, in my thesis. Professor Rudi has helped me execute this project to my best ability by giving me new ideas and solutions to problems that would occur, as well as answering any questions I would have. Further, my secondary supervisor associate professor Snipen has helped me in acquiring and interpreting shotgun data for this thesis. A big thank you to both of you. I would also like to thank laboratory engineer Inga Leena Angell for all the guidance in the laboratory, and for her patience when answering questions. Also, thank you to Ida Ormaasen, Morten Nilsen, and the rest of the Microbial Diversity group at NMBU for always being positive, friendly, and helpful – it has been a pleasure working at the MiDiv lab the past year! I am very grateful to the salmon farmers providing me with the material necessary to study salmon gut microbiota. Without the generosity of Lerøy Sjøtroll in Bømlo, Lerøy Aurora in Skjervøy and Mowi in Chile, I would not be able to do this work. -
Bacterial Communities of the Upper Respiratory Tract of Turkeys
www.nature.com/scientificreports OPEN Bacterial communities of the upper respiratory tract of turkeys Olimpia Kursa1*, Grzegorz Tomczyk1, Anna Sawicka‑Durkalec1, Aleksandra Giza2 & Magdalena Słomiany‑Szwarc2 The respiratory tracts of turkeys play important roles in the overall health and performance of the birds. Understanding the bacterial communities present in the respiratory tracts of turkeys can be helpful to better understand the interactions between commensal or symbiotic microorganisms and other pathogenic bacteria or viral infections. The aim of this study was the characterization of the bacterial communities of upper respiratory tracks in commercial turkeys using NGS sequencing by the amplifcation of 16S rRNA gene with primers designed for hypervariable regions V3 and V4 (MiSeq, Illumina). From 10 phyla identifed in upper respiratory tract in turkeys, the most dominated phyla were Firmicutes and Proteobacteria. Diferences in composition of bacterial diversity were found at the family and genus level. At the genus level, the turkey sequences present in respiratory tract represent 144 established bacteria. Several respiratory pathogens that contribute to the development of infections in the respiratory system of birds were identifed, including the presence of Ornithobacterium and Mycoplasma OTUs. These results obtained in this study supply information about bacterial composition and diversity of the turkey upper respiratory tract. Knowledge about bacteria present in the respiratory tract and the roles they can play in infections can be useful in controlling, diagnosing and treating commercial turkey focks. Next-generation sequencing has resulted in a marked increase in culture-independent studies characterizing the microbiome of humans and animals1–6. Much of these works have been focused on the gut microbiome of humans and other production animals 7–11. -
Bovine Mycoplasmosis
Bovine mycoplasmosis The microorganisms described within the genus Mycoplasma spp., family Mycoplasmataceae, class Mollicutes, are characterized by the lack of a cell wall and by the little size (0.2-0.5 µm). They are defined as fastidious microorganisms in in vitro cultivation, as they require specific and selective media for the growth, which appears slower if compared to other common bacteria. Mycoplasmas can be detected in several hosts (mammals, avian, reptiles, plants) where they can act as opportunistic agents or as pathogens sensu stricto. Several Mycoplasma species have been described in the bovine sector, which have been detected from different tissues and have been associated to variable kind of gross-pathology lesions. Moreover, likewise in other zoo-technical areas, Mycoplasma spp. infection is related to high morbidity, low mortality and to the chronicization of the disease. Bovine Mycoplasmosis can affect meat and dairy animals of different ages, leading to great economic losses due to the need of prophylactic/metaphylactic measures, therapy and to decreased production. The new holistic approach to multifactorial or chronic diseases of human and veterinary interest has led to a greater attention also to Mycoplasma spp., which despite their elementary characteristics are considered fast-evolving microorganisms. These kind of bacteria, historically considered of secondary importance apart for some species, are assuming nowadays a greater importance in the various zoo-technical fields with increased diagnostic request in veterinary medicine. Also Acholeplasma spp. and Ureaplasma spp. are described as commensal or pathogen in the bovine sector. Because of the phylogenetic similarity and the common metabolic activities, they can grow in the same selective media or can be detected through biomolecular techniques targeting Mycoplasma spp. -
The Mysterious Orphans of Mycoplasmataceae
The mysterious orphans of Mycoplasmataceae Tatiana V. Tatarinova1,2*, Inna Lysnyansky3, Yuri V. Nikolsky4,5,6, and Alexander Bolshoy7* 1 Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, 90027, California, USA 2 Spatial Science Institute, University of Southern California, Los Angeles, 90089, California, USA 3 Mycoplasma Unit, Division of Avian and Aquatic Diseases, Kimron Veterinary Institute, POB 12, Beit Dagan, 50250, Israel 4 School of Systems Biology, George Mason University, 10900 University Blvd, MSN 5B3, Manassas, VA 20110, USA 5 Biomedical Cluster, Skolkovo Foundation, 4 Lugovaya str., Skolkovo Innovation Centre, Mozhajskij region, Moscow, 143026, Russian Federation 6 Vavilov Institute of General Genetics, Moscow, Russian Federation 7 Department of Evolutionary and Environmental Biology and Institute of Evolution, University of Haifa, Israel 1,2 [email protected] 3 [email protected] 4-6 [email protected] 7 [email protected] 1 Abstract Background: The length of a protein sequence is largely determined by its function, i.e. each functional group is associated with an optimal size. However, comparative genomics revealed that proteins’ length may be affected by additional factors. In 2002 it was shown that in bacterium Escherichia coli and the archaeon Archaeoglobus fulgidus, protein sequences with no homologs are, on average, shorter than those with homologs [1]. Most experts now agree that the length distributions are distinctly different between protein sequences with and without homologs in bacterial and archaeal genomes. In this study, we examine this postulate by a comprehensive analysis of all annotated prokaryotic genomes and focusing on certain exceptions. -
MIB–MIP Is a Mycoplasma System That Captures and Cleaves Immunoglobulin G
MIB–MIP is a mycoplasma system that captures and cleaves immunoglobulin G Yonathan Arfia,b,1, Laetitia Minderc,d, Carmelo Di Primoe,f,g, Aline Le Royh,i,j, Christine Ebelh,i,j, Laurent Coquetk, Stephane Claveroll, Sanjay Vasheem, Joerg Joresn,o, Alain Blancharda,b, and Pascal Sirand-Pugneta,b aINRA (Institut National de la Recherche Agronomique), UMR 1332 Biologie du Fruit et Pathologie, F-33882 Villenave d’Ornon, France; bUniversity of Bordeaux, UMR 1332 Biologie du Fruit et Pathologie, F-33882 Villenave d’Ornon, France; cInstitut Européen de Chimie et Biologie, UMS 3033, University of Bordeaux, 33607 Pessac, France; dInstitut Bergonié, SIRIC BRIO, 33076 Bordeaux, France; eINSERM U1212, ARN Regulation Naturelle et Artificielle, 33607 Pessac, France; fCNRS UMR 5320, ARN Regulation Naturelle et Artificielle, 33607 Pessac, France; gInstitut Européen de Chimie et Biologie, University of Bordeaux, 33607 Pessac, France; hInstitut de Biologie Structurale, University of Grenoble Alpes, F-38044 Grenoble, France; iCNRS, Institut de Biologie Structurale, F-38044 Grenoble, France; jCEA, Institut de Biologie Structurale, F-38044 Grenoble, France; kCNRS UMR 6270, Plateforme PISSARO, Institute for Research and Innovation in Biomedicine - Normandie Rouen, Normandie Université, F-76821 Mont-Saint-Aignan, France; lProteome Platform, Functional Genomic Center of Bordeaux, University of Bordeaux, F-33076 Bordeaux Cedex, France; mJ. Craig Venter Institute, Rockville, MD 20850; nInternational Livestock Research Institute, 00100 Nairobi, Kenya; and oInstitute of Veterinary Bacteriology, University of Bern, CH-3001 Bern, Switzerland Edited by Roy Curtiss III, University of Florida, Gainesville, FL, and approved March 30, 2016 (received for review January 12, 2016) Mycoplasmas are “minimal” bacteria able to infect humans, wildlife, introduced into naive herds (8). -
Role of Protein Phosphorylation in Mycoplasma Pneumoniae
Pathogenicity of a minimal organism: Role of protein phosphorylation in Mycoplasma pneumoniae Dissertation zur Erlangung des mathematisch-naturwissenschaftlichen Doktorgrades „Doctor rerum naturalium“ der Georg-August-Universität Göttingen vorgelegt von Sebastian Schmidl aus Bad Hersfeld Göttingen 2010 Mitglieder des Betreuungsausschusses: Referent: Prof. Dr. Jörg Stülke Koreferent: PD Dr. Michael Hoppert Tag der mündlichen Prüfung: 02.11.2010 “Everything should be made as simple as possible, but not simpler.” (Albert Einstein) Danksagung Zunächst möchte ich mich bei Prof. Dr. Jörg Stülke für die Ermöglichung dieser Doktorarbeit bedanken. Nicht zuletzt durch seine freundliche und engagierte Betreuung hat mir die Zeit viel Freude bereitet. Des Weiteren hat er mir alle Freiheiten zur Verwirklichung meiner eigenen Ideen gelassen, was ich sehr zu schätzen weiß. Für die Übernahme des Korreferates danke ich PD Dr. Michael Hoppert sowie Prof. Dr. Heinz Neumann, PD Dr. Boris Görke, PD Dr. Rolf Daniel und Prof. Dr. Botho Bowien für das Mitwirken im Thesis-Komitee. Der Studienstiftung des deutschen Volkes gilt ein besonderer Dank für die finanzielle Unterstützung dieser Arbeit, durch die es mir unter anderem auch möglich war, an Tagungen in fernen Ländern teilzunehmen. Prof. Dr. Michael Hecker und der Gruppe von Dr. Dörte Becher (Universität Greifswald) danke ich für die freundliche Zusammenarbeit bei der Durchführung von zahlreichen Proteomics-Experimenten. Ein ganz besonderer Dank geht dabei an Katrin Gronau, die mich in die Feinheiten der 2D-Gelelektrophorese eingeführt hat. Außerdem möchte ich mich bei Andreas Otto für die zahlreichen Proteinidentifikationen in den letzten Monaten bedanken. Nicht zu vergessen ist auch meine zweite Außenstelle an der Universität in Barcelona. Dr. Maria Lluch-Senar und Dr. -
Mycoplasma Agalactiae MEMBRANE PROTEOME
UNIVERSITÀ DEGLI STUDI DI SASSARI SCUOLA DI DOTTORATO IN SCIENZE BIOMOLECOLARI E BIOTECNOLOGICHE INDIRIZZO MICROBIOLOGIA MOLECOLARE E CLINICA XXIII Ciclo CHARACTERIZATION OF Mycoplasma agalactiae MEMBRANE PROTEOME Direttore: Prof. Bruno Masala Tutor: Dr. Alberto Alberti Tesi di dottorato della Dott.ssa Carla Cacciotto ANNO ACCADEMICO 2009-2010 TABLE OF CONTENTS 1. Abstract 2. Introduction 2.1 Mycoplasmas: taxonomy and main biological features 2.2 Metabolism 2.3 In vitro cultivation 2.4 Mycoplasma lipoproteins 2.5 Invasivity and pathogenicity 2.6 Diagnosis of mycoplasmosis 2.7 Mycoplasma agalactiae and Contagious Agalactia 3. Research objectives 4. Materials and methods 4.1 Media and buffers 4.2 Bacterial strains and culture conditions 4.3 Total DNA extraction and PCR 4.4 Total proteins extraction 4.5 Triton X-114 fractionation 4.6 SDS-PAGE 4.7 Western immunoblotting 4.8 2-D PAGE 4.9 2D DIGE 4.10 Spot picking and in situ tryptic digestion 4.11 GeLC-MS/MS 4.12 MALDI-MS 4.13 LC-MS/MS 4.14 Data analysis Dott.ssa Carla Cacciotto, Characterization of Mycoplasma agalactiae membrane proteome. Tesi di Dottorato in Scienze Biomolecolari e Biotecnologiche, Università degli Studi di Sassari. 5. Results 5.1 Species identification 5.2 Extraction of bacterial proteins and isolation of liposoluble proteins 5.3 2-D PAGE/MS of M. agalactiae PG2T liposoluble proteins 5.4 2D DIGE of liposoluble proteins among the type strain and two field isolates of M. agalactiae 5.5 GeLC-MS/MS of M. agalactiae PG2T liposoluble proteins 5.6 Data analysis and classification 6. Discussion 7. -
Resident Microbiome Disruption with Antibiotics Enhances Virulence of a Colonizing Pathogen Received: 13 June 2017 Courtney A
www.nature.com/scientificreports OPEN Resident Microbiome Disruption with Antibiotics Enhances Virulence of a Colonizing Pathogen Received: 13 June 2017 Courtney A. Thomason 1, Nathan Mullen2, Lisa K. Belden1, Meghan May2 & Dana M. Accepted: 13 November 2017 Hawley1 Published: xx xx xxxx There is growing evidence that symbiotic microbes play key roles in host defense, but less is known about how symbiotic microbes mediate pathogen-induced damage to hosts. Here, we use a natural wildlife disease system, house fnches and the conjunctival bacterial pathogen Mycoplasma gallisepticum (MG), to experimentally examine the impact of the ocular microbiome on host damage and pathogen virulence factors during infection. We disrupted the ocular bacterial community of healthy fnches using an antibiotic that MG is intrinsically resistant to, then inoculated antibiotic- and sham-treated birds with MG. House fnches with antibiotic-disrupted ocular microbiomes had more severe MG-induced conjunctival infammation than birds with unaltered microbiomes, even after accounting for diferences in conjunctival MG load. Furthermore, MG cultures from fnches with disrupted microbiomes had increased sialidase enzyme and cytadherence activity, traits associated with enhanced virulence in Mycoplasmas, relative to isolates from sham-treated birds. Variation in sialidase activity and cytadherence among isolates was tightly linked with degree of tissue infammation in hosts, supporting the consideration of these traits as virulence factors in this system. Overall, our results suggest that microbial dysbiosis can result in enhanced virulence of colonizing pathogens, with critical implications for the health of wildlife, domestic animals, and humans. Animals harbor diverse symbiotic microbes that serve key roles in host defense against pathogens1. -
Genomic Islands in Mycoplasmas
G C A T T A C G G C A T genes Review Genomic Islands in Mycoplasmas Christine Citti * , Eric Baranowski * , Emilie Dordet-Frisoni, Marion Faucher and Laurent-Xavier Nouvel Interactions Hôtes-Agents Pathogènes (IHAP), Université de Toulouse, INRAE, ENVT, 31300 Toulouse, France; [email protected] (E.D.-F.); [email protected] (M.F.); [email protected] (L.-X.N.) * Correspondence: [email protected] (C.C.); [email protected] (E.B.) Received: 30 June 2020; Accepted: 20 July 2020; Published: 22 July 2020 Abstract: Bacteria of the Mycoplasma genus are characterized by the lack of a cell-wall, the use of UGA as tryptophan codon instead of a universal stop, and their simplified metabolic pathways. Most of these features are due to the small-size and limited-content of their genomes (580–1840 Kbp; 482–2050 CDS). Yet, the Mycoplasma genus encompasses over 200 species living in close contact with a wide range of animal hosts and man. These include pathogens, pathobionts, or commensals that have retained the full capacity to synthesize DNA, RNA, and all proteins required to sustain a parasitic life-style, with most being able to grow under laboratory conditions without host cells. Over the last 10 years, comparative genome analyses of multiple species and strains unveiled some of the dynamics of mycoplasma genomes. This review summarizes our current knowledge of genomic islands (GIs) found in mycoplasmas, with a focus on pathogenicity islands, integrative and conjugative elements (ICEs), and prophages. Here, we discuss how GIs contribute to the dynamics of mycoplasma genomes and how they participate in the evolution of these minimal organisms. -
MIAMI UNIVERSITY the Graduate School
MIAMI UNIVERSITY The Graduate School Certificate for Approving the Dissertation We hereby approve the Dissertation of Steven Lindau Distelhorst Candidate for the Degree Doctor of Philosophy ______________________________________ Dr. Mitchell F. Balish, Director ______________________________________ Kelly Z. Abshire, Reader ______________________________________ Natosha L. Finley, Reader ______________________________________ Joseph M. Carlin, Reader ______________________________________ Jack C. Vaughn, Graduate School Representative ABSTRACT UNDERSTANDING VIRULENCE FACTORS OF MYCOPLASMA PENETRANS: ATTACHMENT ORGANELLE ORGANIZATION AND GENE EXPRESSION by Steven Lindau Distelhorst The ability to establish and maintain cell polarity plays an important role in cellular organization for both functional and morphological integrity in eukaryotic and prokaryotic organisms. Like eukaryotes, bacteria, including the genomically reduced species of the Mycoplasma genus, use an array of cytoskeletal proteins to generate and maintain cellular polarity. Some mycoplasmas, such as Mycoplasma penetrans, exhibit a distinct polarized structure, known as the attachment organelle (AO), which is used for attachment to host cells and motility. The M. penetrans AO, like AOs of other mycoplasmas, contains a cytoskeletal structure at the core, but lacks any homologs of identified AO core proteins of other investigated mycoplasmas. To characterize the composition of the M. penetrans AO cytoskeleton we purified the detergent-insoluble core material and examined -
Impacts of Mycoplasma Agalactiae Restriction-Modification Systems on Pan-Epigenome Dynamics and Genome Plasticity
bioRxiv preprint doi: https://doi.org/10.1101/2021.06.21.448925; this version posted June 21, 2021. 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. Impacts of Mycoplasma agalactiae restriction-modification systems on pan-epigenome dynamics and genome plasticity Emilie Dordet-Frisoni1, Céline Vandecasteele3, Rachel Contarin 1, Eveline Sagné2, Eric Baranowski2, Christophe Klopp4, Laurent Xavier Nouvel2, and Christine Citti2* 1 INTHERES, Université de Toulouse, INRAE, ENVT, Toulouse, France 2 IHAP, Université de Toulouse, INRAE, ENVT, Toulouse, France 3 INRAE, US 1426, Get-PlaGe, GenoToul, Castanet-Tolosan, France 4 INRA, UR875 MIAT, Sigenae, BioInfo Genotoul, BioInfoMics, F-31326 Auzeville, France Abstract DNA methylation plays an important role in the biology of bacteria. Often associated with restriction modification (RM) systems, they also provide a defence against foreign DNA. Little is known regarding the methylome of the mycoplasma genus, which encompasses several pathogenic species with small genomes. Here, single molecule real-time (SMRT) and bisulphite sequencing combined with whole- genome analysis identified 19 methylated motifs associated with three orphan methyltransferases (MTases) and eight RM systems in Mycoplasma agalactiae, a ruminant pathogen and a model organism. All systems had a homolog in at least one phylogenetically distinct Mycoplasma spp. Our study also revealed that several superimposed genetic events may participate in the M. agalactiae dynamic epigenome landscape. These included (i) DNA shuffling and frameshift mutations that affect the MTase and restriction endonuclease content of a clonal population and (ii) gene duplication, erosion, and horizontal transfer that modulate MTase and RM repertoires of the species.