Microbiologytoday Biology and Pathogenesis Current Technology and Author: Naveed Khan Molecular Biology Applications
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Annual Conference Abstracts
ANNUAL CONFERENCE 14-17 April 2014 Arena and Convention Centre, Liverpool ABSTRACTS SGM ANNUAL CONFERENCE APRIL 2014 ABSTRACTS (LI00Mo1210) – SGM Prize Medal Lecture (LI00Tu1210) – Marjory Stephenson Climate Change, Oceans, and Infectious Disease Prize Lecture Dr. Rita R. Colwell Understanding the basis of antibiotic resistance University of Maryland, College Park, MD, USA as a platform for early drug discovery During the mid-1980s, satellite sensors were developed to monitor Laura JV Piddock land and oceans for purposes of understanding climate, weather, School of Immunity & Infection and Institute of Microbiology and and vegetation distribution and seasonal variations. Subsequently Infection, University of Birmingham, UK inter-relationships of the environment and infectious diseases Antibiotic resistant bacteria are one of the greatest threats to human were investigated, both qualitatively and quantitatively, with health. Resistance can be mediated by numerous mechanisms documentation of the seasonality of diseases, notably malaria including mutations conferring changes to the genes encoding the and cholera by epidemiologists. The new research revealed a very target proteins as well as RND efflux pumps, which confer innate close interaction of the environment and many other infectious multi-drug resistance (MDR) to bacteria. The production of efflux diseases. With satellite sensors, these relationships were pumps can be increased, usually due to mutations in regulatory quantified and comparatively analyzed. More recent studies of genes, and this confers resistance to antibiotics that are often used epidemic diseases have provided models, both retrospective and to treat infections by Gram negative bacteria. RND MDR efflux prospective, for understanding and predicting disease epidemics, systems not only confer antibiotic resistance, but altered expression notably vector borne diseases. -
The Bdellovibrio Bacteriovorus Twin-Arginine Transport System Has Roles in Predatory and Prey-Independent Growth
Microbiology (2011), 157, 3079–3093 DOI 10.1099/mic.0.052449-0 The Bdellovibrio bacteriovorus twin-arginine transport system has roles in predatory and prey-independent growth Chien-Yi Chang,1 Laura Hobley,1 Rob Till,1 Michael Capeness,1 Machi Kanna,23 William Burtt,1 Pratik Jagtap,34 Shin-Ichi Aizawa2 and R. Elizabeth Sockett1 Correspondence 1Institute of Genetics, School of Biology, University of Nottingham Medical School, R. Elizabeth Sockett Nottingham NG7 2UH, UK [email protected] 2Prefectural University of Hiroshima, 562 Nanatsuka, Shobara, Hiroshima 727-0023, Japan 3Max-Planck Institute for Developmental Biology, 72076 Tu¨bingen, Germany Bdellovibrio bacteriovorus grows in one of two ways: either (i) predatorily [in a host-dependent (HD) manner], when it invades the periplasm of another Gram-negative bacterium, exporting into the prey co-ordinated waves of soluble enzymes using the prey cell contents for growth; or (ii) in a host-independent (HI) manner, when it grows (slowly) axenically in rich media. Periplasmic invasion potentially exposes B. bacteriovorus to extremes of pH and exposes the need to scavenge electron donors from prey electron transport components by synthesis of metalloenzymes. The twin-arginine transport system (Tat) in other bacteria transports folded metalloenzymes and the B. bacteriovorus genome encodes 21 potential Tat-transported substrates and Tat transporter proteins TatA1, TatA2 and TatBC. GFP tagging of the Tat signal peptide from Bd1802, a high-potential iron–sulfur protein (HiPIP), revealed it to be exported into the prey bacterium during predatory growth. Mutagenesis showed that the B. bacteriovorus tatA2 and tatC gene products are essential for both HI and HD growth, despite the fact that they partially complement (in SDS resistance assays) the corresponding mutations in Escherichia coli where neither TatA nor TatC are essential for life. -
1471-2164-13-670.Pdf
Hobley et al. BMC Genomics 2012, 13:670 http://www.biomedcentral.com/1471-2164/13/670 RESEARCH ARTICLE Open Access Genome analysis of a simultaneously predatory and prey-independent, novel Bdellovibrio bacteriovorus from the River Tiber, supports in silico predictions of both ancient and recent lateral gene transfer from diverse bacteria Laura Hobley1,3, Thomas R Lerner1,4, Laura E Williams2, Carey Lambert1, Rob Till1, David S Milner1, Sarah M Basford1, Michael J Capeness1, Andrew K Fenton1,5, Robert J Atterbury1,6, Maximilian ATS Harris1 and R Elizabeth Sockett1* Abstract Background: Evolution equipped Bdellovibrio bacteriovorus predatory bacteria to invade other bacteria, digesting and replicating, sealed within them thus preventing nutrient-sharing with organisms in the surrounding environment. Bdellovibrio were previously described as “obligate predators” because only by mutations, often in gene bd0108, are 1 in ~1x107 of predatory lab strains of Bdellovibrio converted to prey-independent growth. A previous genomic analysis of B. bacteriovorus strain HD100 suggested that predatory consumption of prey DNA by lytic enzymes made Bdellovibrio less likely than other bacteria to acquire DNA by lateral gene transfer (LGT). However the Doolittle and Pan groups predicted, in silico, both ancient and recent lateral gene transfer into the B. bacteriovorus HD100 genome. Results: To test these predictions, we isolated a predatory bacterium from the River Tiber- a good potential source of LGT as it is rich in diverse bacteria and organic pollutants- by enrichment culturing with E. coli prey cells. The isolate was identified as B. bacteriovorus and named as strain Tiberius. Unusually, this Tiberius strain showed simultaneous prey-independent growth on organic nutrients and predatory growth on live prey. -
Holding Hands with Bacteria the Life and Work of Marjory Stephenson
SPRINGER BRIEFS IN MOLECULAR SCIENCE HISTORY OF CHEMISTRY Soňa Štrbáňová Holding Hands with Bacteria The Life and Work of Marjory Stephenson 123 SpringerBriefs in Molecular Science History of Chemistry Series editor Seth C. Rasmussen, Fargo, North Dakota, USA More information about this series at http://www.springer.com/series/10127 Soňa Štrbáňová Holding Hands with Bacteria The Life and Work of Marjory Stephenson 1 3 Soňa Štrbáňová Academy of Sciences of the Czech Republic Prague Czech Republic ISSN 2191-5407 ISSN 2191-5415 (electronic) SpringerBriefs in Molecular Science ISSN 2212-991X SpringerBriefs in History of Chemistry ISBN 978-3-662-49734-0 ISBN 978-3-662-49736-4 (eBook) DOI 10.1007/978-3-662-49736-4 Library of Congress Control Number: 2016934952 © The Author(s) 2016 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. -
Microbiology Society Activities
MICROBIOLOGY TODAY 48:1 May 2021 Microbiology Today 48:1 May 2021 Life on a Changing Planet Life on a Changing Planet Exploring the relationship between climate change and the microbial world Forest Fire in Dixie National Forest, Utah, USA. santirf/iStock which in turn increase the risk of COVID-19 complications. impact on respiratory health of affected communities. Curr Opin Pulm Wildfire smoke exposure might also increase the likelihood of Med 2019;25:179–187. comorbidities, including cardiovascular diseases, respiratory Wu X, Nethery RC, Sabath MB, Braun D, Dominici F. Air pollution and diseases, diabetes and hypertension, leading to an increased COVID-19 mortality in the United States: strengths and limitations of an ecological regression analysis. Sci Adv 2020;6:eabd4049. COVID-19 risk. Higher daily average PM2.5 concentrations during the wildfire season in western US states were positively Gosling SN, Bryce EK, Dixon PG, Gabriel KMA, Gosling EY et al. associated with increased influenza rates the following A glossary for biometeorology. Int J Biometeorol 2014;58:277–308. winter, indicating strong evidence for delayed effects of wildfire exposure. Research on understanding the underlying mechanisms between wildfire exposure and respiratory Rosa von Borries infection is an area of active investigation. Consultant at World Meteorological Organization, In particular, vulnerable population groups such as socio- Bernhard-Lichtenberg-Str 15, 10407 Berlin, economically disadvantaged populations, individuals with Germany comorbidities and the elderly face higher risks of experiencing [email protected] the combined consequences of COVID-19 and wildfires. @rosavborries In the US, migrant farmworkers who were continuously linkedin.com/in/rosa-von-borries-5b4987197 exposed to wildfire smoke and deemed essential workers during the pandemic faced much higher risks of severe Rosa von Borries holds an MSc in Public Health from London School health consequences from wildfire smoke and COVID-19. -
An Inside Job: Bdellovibrio Bacteriovorus Some Predatory ‘Bugs’ Eat Other ‘Bugs’ from Inside, As Liz Sockett and Her Research Group Have Found
An inside job: Bdellovibrio bacteriovorus Some predatory ‘bugs’ eat other ‘bugs’ from inside, as Liz Sockett and her research group have found. dellovibrio are small (0.25× Bdellovibrio where the acquisition of a large number of genes periplasmic growth phase, during which they reside inside the 1.0 µm), flagellate, motile, for hydrolytic enzymes, and for penetrating and resealing dead prey cell, degrading it by secreting enzymes across the Gram-negative deltapro- the prey cell, give access to an intracellular niche, bounded prey cytoplasmic membrane to digest prey macromolecules, teobacteria which invade by the prey-cell outer membrane, where the Bdellovibrio can and taking up the products for Bdellovibrio growth. Bdellovibrio and kill other Gram-nega- ‘dine privately’ on the inner contents of the prey cell without seem to be mostly ‘locked on’ to predatory growth in dilute tive bacteria, entering the competition for nutrients from other bacteria. This contrasts environments and cannot productively switch to HI growth to Bprey cell’s periplasm, replicating within with the ‘eating habits’ of other deltaproteobacteria such survive, but depend on finding prey for replication. During the it and using the contents of that as the myxobacteria which digest prey externally and take free-swimming attack phase, rapid prey location, attachment bacterium as their nutrient source. up digested prey nutrients partly in competition with other and recognition are vital to the successful replication of the Bdellovibrio bacteriovorus HD100 is the bacteria in their surroundings. Bdellovibrio, as they typically have a half-life of about 10 sequenced strain and has a 3.8 Mb gen- hours during starvation in buffered environments. -
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70Th Anniversary Collection of the Microbiology Society: Journal of General Virology Robin A
Journal of General Virology (2015), 00, 1–3 DOI 10.1099/jgv.0.000286 Commentary 70th Anniversary Collection of the Microbiology Society: Journal of General Virology Robin A. Weiss Correspondence Division of Infection & Immunity, University College London, London WC1E 6BT, UK Robin A. Weiss [email protected] To mark the 70th anniversary of the founding of the Society From its inception, the Journal of General Virology took for General Microbiology (now renamed the Microbiology papers on the structure and design of virus particles, Society) it was decided to showcase 70 salient publications such as human adenovirus type 5. In a superb biochemical from the archives of its various journals. The Journal of Gen- and structural analysis comprising three consecutive eral Virology was allocated 15 papers. I was invited to curate papers, the second paper by Russell et al. (1967) showed them and given a carte blanche which ones to choose. True that when heated to 56 8C, the icosahedral capsid ruptured to the name of the journal, I picked a broad range of viruses at the penton bases and liberated viral DNA. They also cor- and a paper on prion disease. If readers are disappointed not rectly predicted that unknown nucleocore proteins exist to see their own most cherished contribution featured that in later years became important for understanding among them, please consider the odds: only 15 from over cell transformation and early steps in virus replication. 15 000 Journal of General Virology articles could be selected The only paper among the 15 selected that does not present and I gave more weight to older papers to recall contri- primary research data is the commentary on virus diversity butions by the pioneers of virology. -
Microbiology@UCL Virtual Symposium 2020
Microbiology@UCL Virtual Symposium 2020 Day 1: 28th July 9:00 – 12:30 08:50 – 09:00 Welcome and housekeeping (opening slides) 09:00 Opening: Joanne Santini (Structural & Molecular Biology and Domain lead) Session 1 (Chair: Snezana Djordjevic, Structural & Molecular Biology) 09:05 Keynote: Rotem Sorek (Weizmann Institute of Science) The immune system of bacteria: Beyond CRISPR 09:35 Mark Marsh (MRC Laboratory for Molecular Cell Biology) Membrane trafficking plays an essential role in lentiviral pathogenesis 09:50 George Blundell-Hunter (Pharmaceutics) Characterisation of bacteriophage-encoded depolymerases selective for key Klebsiella pneumoniae capsular exopolysaccharides 09:55 Georgina Benn (London Centre for Nanotechnology and Institute of Structural & Molecular Biology) Imaging the surface of live bacteria with nanometre resolution 10:00 Samuel Ellis (Infection, Immunity & Inflammation, GOSH Institute of Child Health) Impact of binding respiratory syncytial virus G protein on pneumococcal cell division and antibiotic sensitivity 10:05 Poster Session 1 (Chair: China Hanson, Microbiology@UCL Domain Manager) 10:30 Jason Mercer (MRC Laboratory for Molecular Cell Biology) Seeing is believing: Super-resolving poxvirus protein architecture 10:45 15min break Session 2 (Chair: TBA) 11:00 Jürg Bähler (Genetics, Evolution & Environment) Natural variant of pyruvate kinase in fission yeast tunes energy metabolism and triggers systems-wide adaptations in cellular regulation and physiology 11:15 Gabriel Tarrason Risa (MRC Laboratory for Molecular -
Downloaded from the SGM Website
F I: t' SGMHeadquarterc MarlborouqhHouse. Articles Basingsto[eRoad, Spencers Thingsthat go rotin the night - Wood,Reading RG7 lAG Tel.01 18 988 1800 a reviewof biodeteriorationGlyn Morton 103 Fax01 189885656 [email protected] Everythingyou wanted to knowaboutthe dry-rot SGMWebsite fungusbutwere afraid to askJohnW Palfreyman http:./www.sgm.ac.uk &NiaA.White 107 Editor Lichens,agents of monumentaldestruction DrMerielJones MarkR.D.Seaward 110 EditorialBoard ProfessorDave Kelly Conservationof monu m ental stones bv bacterial ProfessorTonyNash biomineralizationBrunetla Perito &Giorgio Mastromei 1 13 ManagingEditor JanetHurst Sulfate-red uci n g bacteriain biofiI ms on metalIic Production Editor materialsand corrosion lwonaB. Beech 11 5 lanAtherton AssistantEditorand TheBiodeterioration Centre, University of Herbfordshire BookReviewManager RichardSmith 1 18 JaniceMeekings Pilzkrieg :the German warti me quest for penicil lin Gontributions Theseare always welcome and GilbertShama 120 shouldbe addressed tothe Editor AcuteRespi ratory rome(SARS) (c/o SGM Headquarters), Severe Synd FaveJones 124 CopyDates Lastdates for receipt of copy atMarlborouqh House are aeneratuopv Regular Featunes November2003 issue 1 Sept Februarv2004 issue 8 December MicroShorts 117&141 AOVerUSemen$ (LKl-.l November2003 issue 29 Sept SocietyNews February2004 issue1 9 January MayCouncilMeeting 126 Advertisements Above:Ascanning usuallycaused bysulfate- NewsofMembers 126 (SRB) Allenquiriesshould be sentto: electronmicrograph of the reducingbacteria and StaffNews 126 Domin -
Microbiologytoday
microbiologytoday microbiology vol36|feb09 quarterly magazine of the society today for general microbiology vol 36 | feb 09 the legacy of fleming ‘that’s funny!’: the discovery of penicillin what manner of man was fleming? the future of antibiotic discovery look who’s talking when good bugs fight bad contents vol36(1) regular features 2 News 38 Schoolzone 46 Hot off the Press 10 Microshorts 42 Gradline 49 Going Public 36 Conferences 45 Addresses 60 Reviews other items 33 The Defra-commissioned independent review of bovine tuberculosis research 54 Education Development Fund report 58 Obituary – Professor Sir James Baddiley FRS 59 Obituary – Emeritus Professor Naomi Datta FRS articles 12 ‘That’s funny!’: the 24 Look who’s talking! discovery and development Julian Davies of penicillin Antibiotics aren’t just for fighting infections; they are part of the bacterial signalling network. Kevin Brown The chance discovery of penicillin 80 years ago made Alexander Fleming a famous scientist. 28 When good bugs fight bad Roy Sleator 16 What manner of man was There are alternative methods available Alexander Fleming? for combating infectious diseases – not just antimicrobial chemotherapy. Philip Mortimer Alexander Fleming, the Society’s first President, did so much more than discover penicillin. 32 A precious memory Norberto Palleroni One of the few people left who met Fleming recounts his 20 Antibiotics and experience. Streptomyces: the future of antibiotic discovery 64 Comment: Debating creationism Flavia Marinelli Many options for drug discovery -
Microbiology Society
MICROBIOLOGY TODAY 47:1 May 2020 Microbiology Today May 2020 47:1 Why Microbiology Matters – 75th anniversary issue Why Microbiology Matters We are celebrating our 75th anniversary by showcasing why microbiology matters and the impact of microbiologists past, present and future. MICROBIOLOGY TODAY 47:1 May 2020 Microbiology Today May 2020 47:1 Why Microbiology Matters – 75th anniversary issue Why Microbiology Matters We are celebrating our 75th anniversary by showcasing why microbiology matters and the impact of microbiologists past, present and future. Editorial Welcome to Microbiology Today, which has a new look. This issue is the first of two special editions of the magazine to be published in the 75th anniversary year of the Microbiology Society. As we look back and celebrate during 2020, we are also considering ‘Why Microbiology Matters’. The longer you think about it, the more you realise how in so many ways it does. Whole Picture ince the first observations of microbes by Antonie van thrive in extreme conditions and are found in every niche Leeuwenhoek in the 1600s, our understanding of how around the globe. Smicrobes underpin and impact our lives has advanced Part of the reason for the success of microbes in these considerably. From discovering their life cycles and roles within varied environments is their genetic plasticity. Charles Dorman various environmental niches to harnessing them in industrial introduces the next section on microbial genetics and the role processes, and, not least, our ability to utilise them for good, to it has played in advancing modern biotechnology. From the vaccinate and treat diseases, with many diseases now known original discovery of restriction enzymes through to potential to be caused by microbes.