Evaluation of Potential Indicators of Virus Removal During Advanced Physical Treatment of Wastewater

Total Page:16

File Type:pdf, Size:1020Kb

Evaluation of Potential Indicators of Virus Removal During Advanced Physical Treatment of Wastewater Evaluation of Potential Indicators of Virus Removal During Advanced Physical Treatment of Wastewater Item Type text; Electronic Dissertation Authors Morrison, Christina Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction, presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 04/10/2021 01:15:42 Link to Item http://hdl.handle.net/10150/642154 EVALUATION OF POTENTIAL INDICATORS OF VIRUS REMOVAL DURING ADVANCED PHYSICAL TREATMENT OF WASTEWATER by Christina Marie Morrison __________________________ Copyright © Christina Marie Morrison 2020 A Dissertation Submitted to the Faculty of the DEPARTMENT OF ENVIRONMENTAL SCIENCE In Partial Fulfillment of the Requirements For the Degree of DOCTOR OF PHILOSOPHY In the Graduate College THE UNIVERSITY OF ARIZONA 2020 1 ACKNOWLEDGEMENT I would like to acknowledge my dissertation and comprehensive exam committees, my lab mates, my collaborators, my classmates, and my coursework professors for helping me throughout my PhD studies. I would also like to acknowledge my friends and family for their support through the good and that bad. I could not have accomplished this without the help of others. 3 DEDICATION This work is dedicated to both my maternal and paternal grandmothers (Suzy and Arlene). I am blessed to have such amazing women to look up to. I love you both dearly. 4 TABLE OF CONTENTS ABSTRACT ................................................................................................................................... 9 INTRODUCTION....................................................................................................................... 13 1. Background ............................................................................................................................... 13 2. Objectives ................................................................................................................................. 14 3. Dissertation Format ................................................................................................................... 15 LITERATURE REVIEW .......................................................................................................... 17 1. Potable Water ............................................................................................................................ 17 2. Microbial Water Quality of Wastewater: Viruses .................................................................... 21 3. Virus Detection ......................................................................................................................... 30 4. Virus Removal by Physical Treatment ..................................................................................... 37 PRESENT STUDY...................................................................................................................... 53 REFERENCES ............................................................................................................................ 60 APPENDIX A .............................................................................................................................. 95 Abstract ......................................................................................................................................... 96 1 Introduction ................................................................................................................................ 97 2. Materials & Methods ................................................................................................................ 99 3. Results and Discussion ........................................................................................................... 104 4. Conclusions ............................................................................................................................. 112 References ................................................................................................................................... 113 Appendix A, Supplementary Material: ....................................................................................... 124 APPENDIX B ............................................................................................................................ 128 5 Abstract ....................................................................................................................................... 129 1. Introduction ............................................................................................................................. 130 2. Materials and Methods ............................................................................................................ 134 3. Results ..................................................................................................................................... 138 4. Discussion ............................................................................................................................... 141 5. Conclusions ............................................................................................................................. 146 References ................................................................................................................................... 148 APPENDIX C ............................................................................................................................ 163 Abstract ....................................................................................................................................... 164 1. Introduction ............................................................................................................................. 165 2. Materials and Methods ............................................................................................................ 166 3. Results & Discussion .............................................................................................................. 171 4. Conclusions ............................................................................................................................. 178 References ................................................................................................................................... 179 Appendix C, Supplementary Material I: ..................................................................................... 196 Appendix C, Supplementary Material II: .................................................................................... 201 6 LIST OF FIGURES Appendix A Figure 1…………………………………………………………………………….120 Figure 2…………………………………………………………………………….121 Figure S1…………………………………………………………………………...126 Appendix B Figure 1…………………………………………………………………………….157 Figure 2…………………………………………………………………………….158 Figure 3…………………………………………………………………………….159 Appendix C Figure 1…………………………………………………………………………….186 Figure 2…………………………………………………………………………….187 Figure 3…………………………………………………………………………….187 Figure 4…………………………………………………………………………….188 Figure 5…………………………………………………………………………….189 Figure 6…………………………………………………………………………….190 Figure 7…………………………………………………………………………….191 Figure 8…………………………………………………………………………….192 Figure 9…………………………………………………………………………….193 Figure S1…………………………………………………………………………...197 Figure S2…………………………………………………………………………...198 Figure S3…………………………………………………………………………...199 7 LIST OF TABLES Literature Review Table 1………………………………………………………………………………..22 Table 2………………………………………………………………………………..24 Table 3………………………………………………………………………………..49 Appendix A Table 1………………………………………………………………………………122 Table 2………………………………………………………………………………122 Table 3………………………………………………………………………………122 Table 4………………………………………………………………………………123 Table S1……………………………………………………………………………..125 Table S2……………………………………………………………………………..125 Table S3……………………………………………………………………………..126 Appendix B Table 1………………………………………………………………………………160 Table 2………………………………………………………………………………161 Table 3………………………………………………………………………………162 Appendix C Table 1………………………………………………………………………………194 Table 2………………………………………………………………………………195 Table S1……………………………………………………………………………..201 8 ABSTRACT The increasing threat of water scarcity throughout the world has led to the implementation of potable wastewater reuse. During potable wastewater reuse, final treated wastewater effluent is purified to drinking water quality. This is performed to augment current drinking water sources. However, treated wastewater effluent is of degraded quality when compared to conventional drinking water sources, therefore extensive treatment and quality monitoring is required for the protection of public health. Removal of pathogens, particularly viruses, is a major concern during wastewater reuse, as sewage is a significant source of enteric pathogens. Viruses are the smallest of enteric pathogens and have physical attributes which allow for persistence in the environment for extended periods of time while maintaining viability. Therefore, strict requirements pertaining to virus removal during wastewater reuse are enforced. Treatment facilities are required to demonstrate the capability of different treatment technologies implemented for virus removal. This is largely done by the spiking of laboratory propagated MS2 coliphage, which is recommended by the National Water Research Institution Framework for Direct Potable Reuse (2015).
Recommended publications
  • Phages for Phage Therapy: Isolation, Characterization, and Host Range Breadth
    pharmaceuticals Review Phages for Phage Therapy: Isolation, Characterization, and Host Range Breadth Paul Hyman Department of Biology/Toxicology, Ashland University, 401 College Ave., Ashland, OH 44805, USA; [email protected]; Tel.: +1-419-207-6309 Received: 28 December 2018; Accepted: 4 March 2019; Published: 11 March 2019 Abstract: For a bacteriophage to be useful for phage therapy it must be both isolated from the environment and shown to have certain characteristics beyond just killing strains of the target bacterial pathogen. These include desirable characteristics such as a relatively broad host range and a lack of other characteristics such as carrying toxin genes and the ability to form a lysogen. While phages are commonly isolated first and subsequently characterized, it is possible to alter isolation procedures to bias the isolation toward phages with desirable characteristics. Some of these variations are regularly used by some groups while others have only been shown in a few publications. In this review I will describe (1) isolation procedures and variations that are designed to isolate phages with broader host ranges, (2) characterization procedures used to show that a phage may have utility in phage therapy, including some of the limits of such characterization, and (3) results of a survey and discussion with phage researchers in industry and academia on the practice of characterization of phages. Keywords: phage therapy; bacteriophage isolation; host range; bacteriophage characterization; genome sequencing; enrichment culture 1. Introduction The isolation of bacteriophages for phage therapy is often presented as a fairly straightforward exercise of mixing a phage-containing sample with host bacteria, followed by a simple removal of bacterial debris by filtration and/or centrifugation the next day [1–3].
    [Show full text]
  • Evidence for Lysine Acetylation in the Coat Protein of a Polerovirus
    Journal of General Virology (2014), 95, 2321–2327 DOI 10.1099/vir.0.066514-0 Short Evidence for lysine acetylation in the coat protein of Communication a polerovirus Michelle Cilia,1,2,3 Richard Johnson,4 Michelle Sweeney,3 Stacy L. DeBlasio,1,3 James E. Bruce,4 Michael J. MacCoss4 and Stewart M. Gray1,2 Correspondence 1USDA-Agricultural Research Service, Ithaca, NY 14853, USA Michelle Cilia 2Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, [email protected] NY 14853, USA 3Boyce Thompson Institute for Plant Research, Ithaca, NY 14853, USA 4Department of Genome Sciences, University of Washington, Seattle, WA 98109, USA Virions of the RPV strain of Cereal yellow dwarf virus-RPV were purified from infected oat tissue and analysed by MS. Two conserved residues, K147 and K181, in the virus coat protein, were confidently identified to contain epsilon-N-acetyl groups. While no functional data are available for K147, K181 lies within an interfacial region critical for virion assembly and stability. The signature immonium ion at m/z 126.0919 demonstrated the presence of N-acetyllysine, and the sequence fragment ions enabled an unambiguous assignment of the epsilon-N-acetyl modification on K181. Received 4 April 2014 We hypothesize that selection favours acetylation of K181 in a fraction of coat protein monomers Accepted 13 June 2014 to stabilize the capsid by promoting intermonomer salt bridge formation. Potato leafroll virus (PLRV) and the barley/cereal/maize encapsidation of one species’ RNA in the virion of another yellow dwarf viruses, members of the Luteoviridae and species. Such manipulation can result in an expansion of referred to hereafter as luteovirids, are globally important potential aphid species that can transmit the virus.
    [Show full text]
  • Presence of Apis Rhabdovirus-1 in Populations of Pollinators and Their Parasites from Two Continents
    fmicb-08-02482 December 9, 2017 Time: 15:38 # 1 ORIGINAL RESEARCH published: 12 December 2017 doi: 10.3389/fmicb.2017.02482 Presence of Apis Rhabdovirus-1 in Populations of Pollinators and Their Parasites from Two Continents Sofia Levin1,2, David Galbraith3, Noa Sela4, Tal Erez1, Christina M. Grozinger3 and Nor Chejanovsky1,5* 1 Department of Entomology, Institute of Plant Protection, Agricultural Research Organization, Rishon LeZion, Israel, 2 Faculty of Agricultural, Food and the Environmental Quality Sciences, The Hebrew University of Jerusalem, Rehovot, Israel, 3 Department of Entomology – Center for Pollinator Research – Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, United States, 4 Department of Plant Pathology and Weed Research, Institute of Plant Protection, Agricultural Research Organization, Rishon LeZion, Israel, 5 Institute of Bee Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland The viral ecology of bee communities is complex, where viruses are readily shared among co-foraging bee species. Additionally, in honey bees (Apis mellifera), many viruses are transmitted – and their impacts exacerbated – by the parasitic Varroa Edited by: destructor mite. Thus far, the viruses found to be shared across bee species and Ralf Georg Dietzgen, transmitted by V. destructor mites are positive-sense single-stranded RNA viruses. The University of Queensland, Australia Recently, a negative-sense RNA enveloped virus, Apis rhabdovirus-1 (ARV-1), was Reviewed by: found in A. mellifera honey bees in Africa, Europe, and islands in the Pacific. Here, Emily J. Bailes, we describe the identification – using a metagenomics approach – of ARV-1 in two bee Royal Holloway, University of London, United Kingdom species (A.
    [Show full text]
  • 2020 Taxonomic Update for Phylum Negarnaviricota (Riboviria: Orthornavirae), Including the Large Orders Bunyavirales and Mononegavirales
    Archives of Virology https://doi.org/10.1007/s00705-020-04731-2 VIROLOGY DIVISION NEWS 2020 taxonomic update for phylum Negarnaviricota (Riboviria: Orthornavirae), including the large orders Bunyavirales and Mononegavirales Jens H. Kuhn1 · Scott Adkins2 · Daniela Alioto3 · Sergey V. Alkhovsky4 · Gaya K. Amarasinghe5 · Simon J. Anthony6,7 · Tatjana Avšič‑Županc8 · María A. Ayllón9,10 · Justin Bahl11 · Anne Balkema‑Buschmann12 · Matthew J. Ballinger13 · Tomáš Bartonička14 · Christopher Basler15 · Sina Bavari16 · Martin Beer17 · Dennis A. Bente18 · Éric Bergeron19 · Brian H. Bird20 · Carol Blair21 · Kim R. Blasdell22 · Steven B. Bradfute23 · Rachel Breyta24 · Thomas Briese25 · Paul A. Brown26 · Ursula J. Buchholz27 · Michael J. Buchmeier28 · Alexander Bukreyev18,29 · Felicity Burt30 · Nihal Buzkan31 · Charles H. Calisher32 · Mengji Cao33,34 · Inmaculada Casas35 · John Chamberlain36 · Kartik Chandran37 · Rémi N. Charrel38 · Biao Chen39 · Michela Chiumenti40 · Il‑Ryong Choi41 · J. Christopher S. Clegg42 · Ian Crozier43 · John V. da Graça44 · Elena Dal Bó45 · Alberto M. R. Dávila46 · Juan Carlos de la Torre47 · Xavier de Lamballerie38 · Rik L. de Swart48 · Patrick L. Di Bello49 · Nicholas Di Paola50 · Francesco Di Serio40 · Ralf G. Dietzgen51 · Michele Digiaro52 · Valerian V. Dolja53 · Olga Dolnik54 · Michael A. Drebot55 · Jan Felix Drexler56 · Ralf Dürrwald57 · Lucie Dufkova58 · William G. Dundon59 · W. Paul Duprex60 · John M. Dye50 · Andrew J. Easton61 · Hideki Ebihara62 · Toufc Elbeaino63 · Koray Ergünay64 · Jorlan Fernandes195 · Anthony R. Fooks65 · Pierre B. H. Formenty66 · Leonie F. Forth17 · Ron A. M. Fouchier48 · Juliana Freitas‑Astúa67 · Selma Gago‑Zachert68,69 · George Fú Gāo70 · María Laura García71 · Adolfo García‑Sastre72 · Aura R. Garrison50 · Aiah Gbakima73 · Tracey Goldstein74 · Jean‑Paul J. Gonzalez75,76 · Anthony Grifths77 · Martin H. Groschup12 · Stephan Günther78 · Alexandro Guterres195 · Roy A.
    [Show full text]
  • First Description of a Temperate Bacteriophage (Vb Fhim KIRK) of Francisella Hispaniensis Strain 3523
    viruses Article First Description of a Temperate Bacteriophage (vB_FhiM_KIRK) of Francisella hispaniensis Strain 3523 Kristin Köppen 1,†, Grisna I. Prensa 1,†, Kerstin Rydzewski 1, Hana Tlapák 1, Gudrun Holland 2 and Klaus Heuner 1,* 1 Centre for Biological Threats and Special Pathogens, Cellular Interactions of Bacterial Pathogens, ZBS 2, Robert Koch Institute, 13353 Berlin, Germany; [email protected] (K.K.); [email protected] (G.I.P.); [email protected] (K.R.); [email protected] (H.T.) 2 Centre for Biological Threats and Special Pathogens, Advanced Light and Electron Microscopy, ZBS 4, Robert Koch Institute, D-13353 Berlin, Germany; [email protected] * Correspondence: [email protected]; Tel.: +49-30-18754-2226 † Both authors contributed equally to this work. Abstract: Here we present the characterization of a Francisella bacteriophage (vB_FhiM_KIRK) includ- ing the morphology, the genome sequence and the induction of the prophage. The prophage sequence (FhaGI-1) has previously been identified in F. hispaniensis strain 3523. UV radiation induced the prophage to assemble phage particles consisting of an icosahedral head (~52 nm in diameter), a tail of up to 97 nm in length and a mean width of 9 nm. The double stranded genome of vB_FhiM_KIRK contains 51 open reading frames and is 34,259 bp in length. The genotypic and phylogenetic analysis indicated that this phage seems to belong to the Myoviridae family of bacteriophages. Under the Citation: Köppen, K.; Prensa, G.I.; conditions tested here, host cell (Francisella hispaniensis 3523) lysis activity of KIRK was very low, and Rydzewski, K.; Tlapák, H.; Holland, the phage particles seem to be defective for infecting new bacterial cells.
    [Show full text]
  • The Role of F-Box Proteins During Viral Infection
    Int. J. Mol. Sci. 2013, 14, 4030-4049; doi:10.3390/ijms14024030 OPEN ACCESS International Journal of Molecular Sciences ISSN 1422-0067 www.mdpi.com/journal/ijms Review The Role of F-Box Proteins during Viral Infection Régis Lopes Correa 1, Fernanda Prieto Bruckner 2, Renan de Souza Cascardo 1,2 and Poliane Alfenas-Zerbini 2,* 1 Department of Genetics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21944-970, Brazil; E-Mails: [email protected] (R.L.C.); [email protected] (R.S.C.) 2 Department of Microbiology/BIOAGRO, Federal University of Viçosa, Viçosa, MG 36570-000, Brazil; E-Mail: [email protected] * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +55-31-3899-2955; Fax: +55-31-3899-2864. Received: 23 October 2012; in revised form: 14 December 2012 / Accepted: 17 January 2013 / Published: 18 February 2013 Abstract: The F-box domain is a protein structural motif of about 50 amino acids that mediates protein–protein interactions. The F-box protein is one of the four components of the SCF (SKp1, Cullin, F-box protein) complex, which mediates ubiquitination of proteins targeted for degradation by the proteasome, playing an essential role in many cellular processes. Several discoveries have been made on the use of the ubiquitin–proteasome system by viruses of several families to complete their infection cycle. On the other hand, F-box proteins can be used in the defense response by the host. This review describes the role of F-box proteins and the use of the ubiquitin–proteasome system in virus–host interactions.
    [Show full text]
  • Characterization of Vertically and Cross-Species Transmitted Viruses in the Cestode Parasite 2 Schistocephalus Solidus
    bioRxiv preprint doi: https://doi.org/10.1101/803247; this version posted October 13, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC 4.0 International license. 1 Characterization of vertically and cross-species transmitted viruses in the cestode parasite 2 Schistocephalus solidus 3 Megan A Hahna, Karyna Rosariob, Pierrick Lucasc, Nolwenn M Dheilly a# 4 5 a School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook NY, USA 6 b College of Marine Science, University of South Florida, Saint Petersburg, FL, USA 7 c ANSES, Agence Nationale de Sécurité Sanitaire de l’Alimentation, de l’Environnement et du 8 Travail - Laboratoire de Ploufragan-Plouzané, Unité Génétique Virale de Biosécurité, 9 Ploufragan, France 10 11 # Address correspondence to Nolwenn M Dheilly: [email protected] 12 1 bioRxiv preprint doi: https://doi.org/10.1101/803247; this version posted October 13, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC 4.0 International license. 13 Abstract 14 Parasitic flatworms (Neodermata) represent a public health and economic burden due to associated 15 debilitating diseases and limited therapeutic treatments available. Despite their importance, there 16 is scarce information regarding flatworm-associated microbes. We report the discovery of six RNA 17 viruses in the cestode Schistocephalus solidus.
    [Show full text]
  • Viral Diversity in Tree Species
    Universidade de Brasília Instituto de Ciências Biológicas Departamento de Fitopatologia Programa de Pós-Graduação em Biologia Microbiana Doctoral Thesis Viral diversity in tree species FLÁVIA MILENE BARROS NERY Brasília - DF, 2020 FLÁVIA MILENE BARROS NERY Viral diversity in tree species Thesis presented to the University of Brasília as a partial requirement for obtaining the title of Doctor in Microbiology by the Post - Graduate Program in Microbiology. Advisor Dra. Rita de Cássia Pereira Carvalho Co-advisor Dr. Fernando Lucas Melo BRASÍLIA, DF - BRAZIL FICHA CATALOGRÁFICA NERY, F.M.B Viral diversity in tree species Flávia Milene Barros Nery Brasília, 2025 Pages number: 126 Doctoral Thesis - Programa de Pós-Graduação em Biologia Microbiana, Universidade de Brasília, DF. I - Virus, tree species, metagenomics, High-throughput sequencing II - Universidade de Brasília, PPBM/ IB III - Viral diversity in tree species A minha mãe Ruth Ao meu noivo Neil Dedico Agradecimentos A Deus, gratidão por tudo e por ter me dado uma família e amigos que me amam e me apoiam em todas as minhas escolhas. Minha mãe Ruth e meu noivo Neil por todo o apoio e cuidado durante os momentos mais difíceis que enfrentei durante minha jornada. Aos meus irmãos André, Diego e meu sobrinho Bruno Kawai, gratidão. Aos meus amigos de longa data Rafaelle, Evanessa, Chênia, Tati, Leo, Suzi, Camilets, Ricardito, Jorgito e Diego, saudade da nossa amizade e dos bons tempos. Amo vocês com todo o meu coração! Minha orientadora e grande amiga Profa Rita de Cássia Pereira Carvalho, a quem escolhi e fui escolhida para amar e fazer parte da família.
    [Show full text]
  • Mosquito-Borne Viruses and Suppressors of Invertebrate Antiviral RNA Silencing
    Viruses 2014, 6, 4314-4331; doi:10.3390/v6114314 OPEN ACCESS viruses ISSN 1999-4915 www.mdpi.com/journal/viruses Review Mosquito-Borne Viruses and Suppressors of Invertebrate Antiviral RNA Silencing Scott T. O’Neal, Glady Hazitha Samuel, Zach N. Adelman and Kevin M. Myles * Fralin Life Science Institute and Department of Entomology, Virginia Tech, Blacksburg, VA 24061, USA; E-Mails: [email protected] (S.T.O.); [email protected] (G.H.S.); [email protected] (Z.N.A.) * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +1-540-231-6158. External Editor: Rollie Clem Received: 19 September 2014; in revised form: 28 October 2014 / Accepted: 31 October 2014 / Published: 11 November 2014 Abstract: The natural maintenance cycles of many mosquito-borne viruses require establishment of persistent non-lethal infections in the invertebrate host. While the mechanisms by which this occurs are not well understood, antiviral responses directed by small RNAs are important in modulating the pathogenesis of viral infections in disease vector mosquitoes. In yet another example of an evolutionary arms race between host and pathogen, some plant and insect viruses have evolved to encode suppressors of RNA silencing (VSRs). Whether or not mosquito-borne viral pathogens encode VSRs has been the subject of debate. While at first there would seem to be little evolutionary benefit to mosquito-borne viruses encoding proteins or sequences that strongly interfere with RNA silencing, we present here a model explaining how the expression of VSRs by these viruses in the vector might be compatible with the establishment of persistence.
    [Show full text]
  • Tically Expands Our Understanding on Virosphere in Temperate Forest Ecosystems
    Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 21 June 2021 doi:10.20944/preprints202106.0526.v1 Review Towards the forest virome: next-generation-sequencing dras- tically expands our understanding on virosphere in temperate forest ecosystems Artemis Rumbou 1,*, Eeva J. Vainio 2 and Carmen Büttner 1 1 Faculty of Life Sciences, Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Ber- lin, Germany; [email protected], [email protected] 2 Natural Resources Institute Finland, Latokartanonkaari 9, 00790, Helsinki, Finland; [email protected] * Correspondence: [email protected] Abstract: Forest health is dependent on the variability of microorganisms interacting with the host tree/holobiont. Symbiotic mi- crobiota and pathogens engage in a permanent interplay, which influences the host. Thanks to the development of NGS technol- ogies, a vast amount of genetic information on the virosphere of temperate forests has been gained the last seven years. To estimate the qualitative/quantitative impact of NGS in forest virology, we have summarized viruses affecting major tree/shrub species and their fungal associates, including fungal plant pathogens, mutualists and saprotrophs. The contribution of NGS methods is ex- tremely significant for forest virology. Reviewed data about viral presence in holobionts, allowed us to address the role of the virome in the holobionts. Genetic variation is a crucial aspect in hologenome, significantly reinforced by horizontal gene transfer among all interacting actors. Through virus-virus interplays synergistic or antagonistic relations may evolve, which may drasti- cally affect the health of the holobiont. Novel insights of these interplays may allow practical applications for forest plant protec- tion based on endophytes and mycovirus biocontrol agents.
    [Show full text]
  • Elucidating Viral Communities During a Phytoplankton Bloom on the West Antarctic Peninsula
    fmicb-10-01014 May 10, 2019 Time: 14:46 # 1 ORIGINAL RESEARCH published: 14 May 2019 doi: 10.3389/fmicb.2019.01014 Elucidating Viral Communities During a Phytoplankton Bloom on the West Antarctic Peninsula Tomás Alarcón-Schumacher1,2†, Sergio Guajardo-Leiva1†, Josefa Antón3 and Beatriz Díez1,4* 1 Department of Molecular Genetics and Microbiology, Pontificia Universidad Católica de Chile, Santiago, Chile, 2 Max Planck Institute for Marine Microbiology, Bremen, Germany, 3 Department of Physiology, Genetics, and Microbiology, University of Alicante, Alicante, Spain, 4 Center for Climate and Resilience Research (CR2), University of Chile, Santiago, Chile In Antarctic coastal waters where nutrient limitations are low, viruses are expected to play a major role in the regulation of bloom events. Despite this, research in viral identification and dynamics is scarce, with limited information available for the Southern Ocean (SO). This study presents an integrative-omics approach, comparing variation in the viral and microbial active communities on two contrasting sample conditions from Edited by: a diatom-dominated phytoplankton bloom occurring in Chile Bay in the West Antarctic David Velazquez, Autonomous University of Madrid, Peninsula (WAP) in the summer of 2014. The known viral community, initially dominated Spain by Myoviridae family (∼82% of the total assigned reads), changed to become dominated Reviewed by: by Phycodnaviridae (∼90%), while viral activity was predominantly driven by dsDNA Carole Anne Llewellyn, ∼ ∼ Swansea University, United Kingdom members of the Phycodnaviridae ( 50%) and diatom infecting ssRNA viruses ( 38%), Márcio Silva de Souza, becoming more significant as chlorophyll a increased. A genomic and phylogenetic Fundação Universidade Federal do characterization allowed the identification of a new viral lineage within the Myoviridae Rio Grande, Brazil family.
    [Show full text]
  • Genomic and Functional Characterization of Pseudomonas Aeruginosa-Targeting
    bioRxiv preprint doi: https://doi.org/10.1101/2021.07.08.451722; this version posted July 9, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 Genomic and functional characterization of Pseudomonas aeruginosa-targeting 2 bacteriophages isolated from hospital wastewater 3 4 Hayley R. Nordstrom1, Daniel R. Evans1, Amanda G. Finney1, Kevin J. Westbrook1, Paula F. 5 Zamora2, Alina Iovleva1, Mohamed H. Yassin1, Jennifer M. Bomberger2, Ryan K. Shields1, Yohei 6 Doi1, Daria Van Tyne1,* 7 8 1Division of Infectious Diseases, University of Pittsburgh School of Medicine 9 2Department of Microbiology and Molecular Genetics, University of Pittsburgh School of 10 Medicine 11 12 *Address correspondence to: [email protected] 13 14 Running head: Bacteriophages to target Pseudomonas aeruginosa 15 16 Abstract 17 Pseudomonas aeruginosa infections can be difficult to treat and new therapeutic approaches 18 are needed. Bacteriophage therapy is a promising alternative to traditional antibiotics, but large 19 numbers of isolated and characterized phages are lacking. We collected 23 genetically and 20 phenotypically diverse P. aeruginosa isolates from people with cystic fibrosis (CF) and clinical 21 infections, and characterized their genetic, phenotypic, and prophage diversity. We then used 22 these isolates to screen and isolate 14 new P. aeruginosa-targeting phages from hospital 23 wastewater. Phages were characterized with genome sequencing, comparative genomics, and 24 lytic activity screening against all 23 bacterial host isolates.
    [Show full text]