DOCSLIB.ORG

Common Weed Hosts of Insect-Transmitted Viruses of Florida Vegetable Crops1 Gaurav Goyal, Harsimran K

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Common Weed Hosts of Insect-Transmitted Viruses of Florida Vegetable Crops1 Gaurav Goyal, Harsimran K Archival copy: for current recommendations see http://edis.ifas.ufl.edu or your local extension office. Archival copy: for current recommendations see http://edis.ifas.ufl.edu or your local extension office. ENY-863 Common Weed Hosts of Insect-Transmitted Viruses of Florida Vegetable Crops1 Gaurav Goyal, Harsimran K. Gill, and Robert McSorley2 Weed growth can severely decrease the commercial, virus attacks bell pepper, tomato, spinach, cantaloupe, recreational, and aesthetic values of crops, landscapes, and cucumber, pumpkin, squash, celery, and watercress. waterways. More information on weeds can be found in References to appropriate publications are provided for Hall et al. (2009i). Other than affecting crop production easy cross-reference and more details about the virus by reducing the amount of nutrients available to the main under consideration. Common viruses with their family crop, weeds can also influence crop production by acting as and genus names are provided in Table 2. Information is reservoirs of various viruses that are transmitted by insects. also provided for each vegetable that was reported infected Several insects transmit different viruses in different crops, by the virus, and on the insect vectors that transmit the but aphids and whiteflies are among the most important virus. Some viruses, such as Tomato mosaic virus, are not virus vectors (carriers of viruses) on vegetable crops in transmitted by vectors. Others, such as Bean common Florida. The insect vectors feed on various parts of weeds mosaic virus, can be transmitted by vectors or through seed. that are infected by a virus and acquire the virus in the Detailed information about viruses and their transmission process. They then can feed on uninfected agricultural has been summarized by Adams and Antoniw (2011). crops and transmit the virus to them. Insects are often Common and scientific names of weeds that act as virus attracted to weeds and survive on them because weeds can sources are listed in Table 3. provide food for insects when preferred food is scarce, or weeds can provide shelter from adverse conditions such as Removal of weeds that act as virus sources may be helpful bad weather or pesticide applications. Several weeds have in reducing the initial infestation by a virus of the main been reported as virus hosts by Kucharek and Purcifull crop in the same field as well as other fields that are near (2001). The current publication includes additional and the weeds. Removal of volunteer plants from field borders updated material since that time and provides links to may also help in management of viral diseases (Momol and further information on specific viruses that affect vegetable Pernezny 2006). crops. Certain volunteer vegetable plants can also act as sources of viruses that endanger the main crop. While a number of weeds in and around fields of different crops can act as virus sources for the main vegetable crop, Information on weed hosts of various vegetable viruses can some of them are particularly important because of their be found in Table 1. Virus names are often based on the ability to host a number of different viruses. A few of these name of the vegetable they attack; however, certain viruses are balsam apple (Figure 1), creeping cucumber (Figure 2), affect many different vegetables, e.g., Cucumber mosaic groundcherry (Figure 3), dayflower (Figure 4), American 1. This document is ENY-863, one of a series of the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date April 2012. Visit the EDIS website at http://edis.ifas.ufl.edu. 2. Gaurav Goyal, postdoctoral research associate; Harsimran K. Gill, postdoctoral research associate; and Robert McSorley, professor; Department of Entomology and Nematology, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL, 32611. The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. U.S. Department of Agriculture, Cooperative Extension Service, University of Florida, IFAS, Florida A&M University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Millie Ferrer-Chancy, Interim Dean Archival copy: for current recommendations see http://edis.ifas.ufl.edu or your local extension office. Archival copy: for current recommendations see http://edis.ifas.ufl.edu or your local extension office. black nightshade (Figure 5), hairy indigo (Figure 6), and citron (Figure 7). The American black nightshade is com- mon in Florida (MacRae 2010), and it is possible that some of the references to “nightshade” in Table 1 or to “black nightshade” may actually refer to this plant. Recognition of these common virus host plants is important because they may be reservoirs for viruses, allowing them to survive during the off-season when the main vegetable crops are not grown. Figure 3. Cutleaf groundcherry (Physalis angulata), Credits: Brent Sellers (Hall et al. 2009b) Figure 1. Balsam apple (Momordica spp.), Credits: Brent Sellers (Hall et al. 2009a) Figure 4. Dayflower (Commelina spp.), Credits: Gaurav Goyal Research, Harpenden, UK. Available: (http://www.dpvweb. net). Adkins, S., and E. N. Rosskopf. 2002. Key West nightshade, a new experimental host for plant viruses. Plant Disease 86:1310-1314. Adkins, S., S. E. Webb, C. A. Baker, and C. S. Kousik. 2008. Squash vein yellowing virus detection using nested poly- merase chain reaction demonstrates that the cucurbit weed Momordica charantia is a reservoir host. Plant Disease 92:1119-1123. Figure 2. Creeping cucumber (Melothria pendula), Credits: Gaurav Goyal Adkins, S., S. E. Webb, P. D. Roberts, C. S. Kousik, P. A. Stansly, B. D. Bruton, D. Achor, R. M. Muchovej, and C. A. Baker. 2010. A review of Ipomoviruses and Watermelon decline in Florida, pp. 333-337. In P.A. Stansly and S.E. References Cited Naranjo (eds.), Bemisia: Bionomics and management of a Adams, M. J., and J.F. Antoniw. 2011. Descriptions of plant global pest. Springer Publishing, New York. viruses. Association of Applied Biologists, Rothamsted 2 Archival copy: for current recommendations see http://edis.ifas.ufl.edu or your local extension office. Archival copy: for current recommendations see http://edis.ifas.ufl.edu or your local extension office. Figure 7. Citron (Citrullus lanatus), Credits: Gaurav Goyal Bracero, V., and L. I. Rivera. 2003. DNA analysis confirms Macroptilium lathyroides as alternative hosts of bean golden yellow mosaic virus. Plant Disease 87:1022-1025. Figure 5. American black nightshade (Solanum americanum), Credits: Gaurav Goyal Brown, L. G., and G. W. Simone. 1994. Tomato yellow leaf curl geminivirus. Plant Pathology Circ. 366. Florida Dept. of Agriculture and Consumer Services. Division of Plant Industry, Gainesville, FL. Available:(http://www.freshfrom- florida com/pi/enpp/pathology/pathcirc/pp366.pdf). Dikova, B. 1946. Establishment of tobacco rattle virus (trv) in weeds and Cuscuta. Biotechnology and Biotechnology Equipment 20:42-48. Ferreira, S. A., and R. A. Boley. 1992. Cucumber mosaic virus. Crop Knowledge Master. Department of Plant Pathology, CTAHR, University of Hawaii, Manoa. Avail- able: (http://www.extento.hawaii.edu/kbase/crop/type/ cucvir.htm). Ferrell, J. A., G. E. MacDonald, and B. J. Brecke. 2009. Benghal dayflower (Commelina benghalensis L.), identifi- cation and control. Agronomy Department SS-AGR-223. Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Available: Figure 6. Hairy indigo (Indigofera hirsuta), (http://edis.ifas.ufl.edu/ag230). Credits: Robert McSorley Baker, C., S. Webb, and S. Adkins. 2008. Squash vein Fukumoto F., F. Terami, and M. Ishii. 1993. Zucchini yellow yellowing virus, causal agent of watermelon vine decline mosaic virus isolated from wax gourd (Benincasa hispida in Florida. Plant Pathology Department Circ. 407. Florida Cogn.) and balsam pear (Momordica charantia L.) (in Dept. of Agriculture and Consumer Services, Division of Japanese). Proceedings of Kanto Plant Protection Society Plant industry, Gainesville, FL. Available: (http://www. 40:101–103. freshfromflorida.com/pi/enpp/pathology/pathcirc/pp407. pdf). Gilman, E. F. 2011. Asclepias curassavica butterflyweed, milkweed, silkweed. Environmental Horticulture FPS-49. 3 Archival copy: for current recommendations see http://edis.ifas.ufl.edu or your local extension office. Archival copy: for current recommendations see http://edis.ifas.ufl.edu or your local extension office. Florida Cooperative Extension Service, Institute of Food Hall, D. W., V. V. Vandiver, and J. A. Ferrell. 2009g. Wild and Agricultural Sciences, University of Florida. Available: radish, Raphanus raphanistrum L. Excerpt from weeds in (http://edis.ifas.ufl.edu/fp049). Florida. Agronomy Department SP 37. Florida Cooperative Extension Service, Institute of Food and Agricultural Groves, R. L., J. F. Walgenbach, J. W. Mayor, and G. G. Sciences, University of Florida. Available: (http://edis.ifas. Kennedy. 2002. The role of weed hosts and Tobacco thrips, ufl.edu/fw032). Frankliniella fusca, in the epidemiology of tomato spotted
Load more

Recommended publications
  • Entry of the Membrane-Containing Bacteriophages Into Their Hosts
    Entry of the membrane-containing bacteriophages into their hosts - Institute of Biotechnology and Department of Biosciences Division of General Microbiology Faculty of Biosciences and Viikki Graduate School in Molecular Biosciences University of Helsinki ACADEMIC DISSERTATION To be presented for public examination with the permission of the Faculty of Biosciences, University of Helsinki, in the auditorium 3 of Info center Korona, Viikinkaari 11, Helsinki, on June 18th, at 8 a.m. HELSINKI 2010 Supervisor Professor Dennis H. Bamford Department of Biosciences University of Helsinki, Finland Reviewers Professor Martin Romantschuk Department of Ecological and Environmental Sciences University of Helsinki, Finland Professor Mikael Skurnik Department of Bacteriology and Immunology University of Helsinki, Finland Opponent Dr. Alasdair C. Steven Laboratory of Structural Biology Research National Institute of Arthritis and Musculoskeletal and Skin Diseases National Institutes of Health, USA ISBN 978-952-10-6280-3 (paperback) ISBN 978-952-10-6281-0 (PDF) ISSN 1795-7079 Yliopistopaino, Helsinki University Printing House Helsinki 2010 ORIGINAL PUBLICATIONS This thesis is based on the following publications, which are referred to in the text by their roman numerals: I. 6 - Verkhovskaya R, Bamford DH. 2005. Penetration of enveloped double- stranded RNA bacteriophages phi13 and phi6 into Pseudomonas syringae cells. J Virol. 79(8):5017-26. II. Gaidelyt A*, Cvirkait-Krupovi V*, Daugelaviius R, Bamford JK, Bamford DH. 2006. The entry mechanism of membrane-containing phage Bam35 infecting Bacillus thuringiensis. J Bacteriol. 188(16):5925-34. III. Cvirkait-Krupovi V, Krupovi M, Daugelaviius R, Bamford DH. 2010. Calcium ion-dependent entry of the membrane-containing bacteriophage PM2 into Pseudoalteromonas host.
    [Show full text]
  • Characterization and Electron Microscopy of a Potyvirus Infecting Commelina Diffusa F
    Etiology Characterization and Electron Microscopy of a Potyvirus Infecting Commelina diffusa F. J. Morales and F. W. Zettler Graduate Student and Professor, respectively, Department of Plant Pathology, University of Florida, Gainesville, FL 32611. The authors are grateful to Louise M. Russell, Entomologist, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, Maryland, and to David Hall, Department of Botany, University of Florida, for the identification of the Aphis and Commelina species, respectively, used in this study. We also appreciate the assistance of T. A. Zitter, Univ. of Florida Agric. Res. and Educ. Center, Belle Glade, for assistance in making surveys in Palm Beach County. Journal Series Paper No. 6187 of the Florida Agricultural Experiment Station. Accepted for publication 11 January 1977. ABSTRACT MORALES, F. J. and F. W. ZETTLER. 1977. Characterization and eletron microscopy of a potyvirus infecting Commelina diffusa. Phytopathology 67: 839-843. A filamentous virus has been discovered that induces with ammonium molybdate. The dilution end-point of mosaic symptoms in Commelina diffusa distinguishable CoMV was 10-' to 10- , its longevity in vitro was 12-20 hr, from those caused by cucumber mosaic virus (CMV). This and the thermal inactivation point was 50-60 C. Leaf extracts virus, herein designated as commelina mosaic virus (CoMV), from CoMV-infected plants did not react in which appears to be a potyvirus, was readily transmitted immunodiffusion tests with antisera prepared to bidens mechanically to C. diffusa but not to 15 other species in nine mottle, blackeye cowpea mosaic, dasheen mosaic, lettuce plant families. Commelina mosaic virus was transmitted in a mosaic, pepper mottle, potato Y, tobacco etch, or turnip stylet-borne manner by Myzus persicaeand Aphis gossypii.
    [Show full text]
  • Aphid Transmission of Potyvirus: the Largest Plant-Infecting RNA Virus Genus
    Supplementary Aphid Transmission of Potyvirus: The Largest Plant-Infecting RNA Virus Genus Kiran R. Gadhave 1,2,*,†, Saurabh Gautam 3,†, David A. Rasmussen 2 and Rajagopalbabu Srinivasan 3 1 Department of Plant Pathology and Microbiology, University of California, Riverside, CA 92521, USA 2 Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27606, USA; [email protected] 3 Department of Entomology, University of Georgia, 1109 Experiment Street, Griffin, GA 30223, USA; [email protected] * Correspondence: [email protected]. † Authors contributed equally. Received: 13 May 2020; Accepted: 15 July 2020; Published: date Abstract: Potyviruses are the largest group of plant infecting RNA viruses that cause significant losses in a wide range of crops across the globe. The majority of viruses in the genus Potyvirus are transmitted by aphids in a non-persistent, non-circulative manner and have been extensively studied vis-à-vis their structure, taxonomy, evolution, diagnosis, transmission and molecular interactions with hosts. This comprehensive review exclusively discusses potyviruses and their transmission by aphid vectors, specifically in the light of several virus, aphid and plant factors, and how their interplay influences potyviral binding in aphids, aphid behavior and fitness, host plant biochemistry, virus epidemics, and transmission bottlenecks. We present the heatmap of the global distribution of potyvirus species, variation in the potyviral coat protein gene, and top aphid vectors of potyviruses. Lastly, we examine how the fundamental understanding of these multi-partite interactions through multi-omics approaches is already contributing to, and can have future implications for, devising effective and sustainable management strategies against aphid- transmitted potyviruses to global agriculture.
    [Show full text]
  • Identification of Zinnia Leaf Curl Virus Infecting Zinnia Elegans in India
    ISABB Journal of Biotechnology and Bioinformatics Vol. 2(1), pp. 6-10, April 2012 Available online at http://www.isabb.academicjournals.org/JBB DOI: 10.5897/ISAAB-JBB12.001 ISSN 1937-3244©2012 Academic Journals Full Length Research Paper Identification of Zinnia leaf curl virus infecting Zinnia elegans in India NAVEEN PANDAY1 and A. K. TIWARI2* 1Department of Botany, DDU University Gorakhpur, Uttar Pradesh, UP, -273008 India. 2Central Laboratory, U P Council of Sugarcane Research, Shahjahnapur-242001, Uttar Pradesh, India. Accepted 26 March, 2012 In a survey during 2007 to 2009 at Gorakhpur and nearby locations of North Eastern Uttar Pradesh, India leaf curling, foliar deformation and distortion symptoms were observed on Zinnia elegans plants. The associated White fly population indicated the possible presence of begomovirus in the field. Therefore, Polymerase chain reaction (PCR) was performed with the begomovirus specific primers (TLCV-CP). Total genomic DNA was isolated from infected as well as healthy leaf samples. In gel electrophoresis expected ~500 bp amplicons was obtained in symptomatic leaf sample while, no amplicon was found in healthy leaf samples. Amplicon obtained were directly sequenced and submitted in the GenBank (GQ412352) and phylogeny were constructed with the available identical sequences in the Genbank. Based on the highest similarity 97% at nucleotide and 99% at amino acid level and closest relationship with isolates of Zinnia leaf curl virus, the present study isolate was considered an isolate of Zinnia leaf curl virus. Key words: Zinnia elegans, Zinnia leaf curl virus, polymerase chain reaction (PCR), phylogenetic analysis. INTRODUCTION Zinnia is a common Mexican wildflower and members of reported virus on Zinnia (Storey, 1931).
    [Show full text]
  • Knowledge of Tobamovirus-Plant Interactions Helps in Understanding and Managing the New Invasive Tomato Brown Regose Fruit Virus (Tobrfv)
    Knowledge of tobamovirus-plant interactions helps in understanding and managing the new invasive tomato brown regose fruit virus (ToBRFV) Robert L. Gilbertson Department of Plant Pathology University of California Davis Photos: N. Salem What is a tobamovirus? • It is a member of a genus (Tobamovirus) in the family Virgaviridae • The tobamovirus type species is Tobacco mosaic virus (TMV), a very famous plant virus! • 37 species currently recognized • Tobamoviruses have similar features -rigid rod-shaped virus particles (18 X 300 nm) -single positive-sense RNA genome of ~6.4 kb -similar genome -transmitted by contact and seed, no insect vector • Many cause economically important diseases! Multiple tobamoviruses infect tomato • At least five tobamoviruses infect tomato and induce similar symptoms: -Tobacco mosaic virus (TMV) -Tomato mosaic virus (ToMV) -Tobacco mild green mosaic virus (TMGMV) -Tomato mottle mosaic virus (ToMMV) -Tomato brown rugose fruit virus (ToBRFV) Symptoms Symptoms Virus Emergent Leaves Fruit Tm-22 Distribution Importance TMV No Mo, Di, SS Browning* Resistant WW Low ToMV No Mo. Di, SS Browning* Resistant WW High TGMMV No Mo, Di, SS Few or none Resistant WW Medium ToMMV Yes (2013) Mo, Di, SS Few or none Resistant* MX, USA, Medium ME, Spain ToBRFV Yes (2015) Mo, Di, SS Necrotic Susceptible ME, MX, High lesions* USA, Europe Type of tomato production and potential ToBRFV impact • Open field *Processing tomatoes in CA Minimal touching and 3 month tomato free period No findings in 2020 **Fresh market production (various)
    [Show full text]
  • No Evidence Known Viruses Play a Role in the Pathogenesis of Onchocerciasis-Associated Epilepsy
    pathogens Article No Evidence Known Viruses Play a Role in the Pathogenesis of Onchocerciasis-Associated Epilepsy. An Explorative Metagenomic Case-Control Study Michael Roach 1 , Adrian Cantu 2, Melissa Krizia Vieri 3 , Matthew Cotten 4,5,6, Paul Kellam 5, My Phan 5,6 , Lia van der Hoek 7 , Michel Mandro 8, Floribert Tepage 9, Germain Mambandu 10, Gisele Musinya 11, Anne Laudisoit 12 , Robert Colebunders 3 , Robert Edwards 1,2,13 and John L. Mokili 13,* 1 College of Science and Engineering, Flinders University, Adelaide, SA 5001, Australia; michael.roach@flinders.edu.au (M.R.); robert.edwards@flinders.edu.au (R.E.) 2 Computational Sciences Research Center, Biology Department, San Diego State University, San Diego, CA 92182, USA; [email protected] 3 Global Health Institute, University of Antwerp, 2160 Antwerp, Belgium; [email protected] (M.K.V.); [email protected] (R.C.) 4 Wellcome Trust Sanger Institute, Hinxton CB10 1RQ, UK; [email protected] 5 MRC/UVRI and London School of Hygiene and Tropical Medicine, Entebbe, Uganda; [email protected] (P.K.); [email protected] (M.P.) 6 Centre for Virus Research, MRC-University of Glasgow, Glasgow G61 1QH, UK 7 Laboratory of Experimental Virology, Department of Medical Microbiology and Infection Prevention, Amsterdam UMC, University of Amsterdam, 1012 WX Amsterdam, The Netherlands; [email protected] 8 Provincial Health Division Ituri, Ministry of Health, Ituri, Congo; [email protected] Citation: Roach, M.; Cantu, A.; Vieri, 9 Provincial Health Division Bas Uélé, Ministry of Health, Bas Uélé, Congo; fl[email protected] M.K.; Cotten, M.; Kellam, P.; Phan, M.; 10 Provincial Health Division Tshopo, Ministry of Health, Tshopo, Congo; [email protected] Hoek, L.v.d.; Mandro, M.; Tepage, F.; 11 Médecins Sans Frontières, Bunia, Congo; [email protected] Mambandu, G.; et al.
    [Show full text]
  • Ancient Recombination Events and the Origins of Hepatitis E Virus Andrew G
    Kelly et al. BMC Evolutionary Biology (2016) 16:210 DOI 10.1186/s12862-016-0785-y RESEARCH ARTICLE Open Access Ancient recombination events and the origins of hepatitis E virus Andrew G. Kelly, Natalie E. Netzler and Peter A. White* Abstract Background: Hepatitis E virus (HEV) is an enteric, single-stranded, positive sense RNA virus and a significant etiological agent of hepatitis, causing sporadic infections and outbreaks globally. Tracing the evolutionary ancestry of HEV has proved difficult since its identification in 1992, it has been reclassified several times, and confusion remains surrounding its origins and ancestry. Results: To reveal close protein relatives of the Hepeviridae family, similarity searching of the GenBank database was carried out using a complete Orthohepevirus A, HEV genotype I (GI) ORF1 protein sequence and individual proteins. The closest non-Hepeviridae homologues to the HEV ORF1 encoded polyprotein were found to be those from the lepidopteran-infecting Alphatetraviridae family members. A consistent relationship to this was found using a phylogenetic approach; the Hepeviridae RdRp clustered with those of the Alphatetraviridae and Benyviridae families. This puts the Hepeviridae ORF1 region within the “Alpha-like” super-group of viruses. In marked contrast, the HEV GI capsid was found to be most closely related to the chicken astrovirus capsid, with phylogenetic trees clustering the Hepeviridae capsid together with those from the Astroviridae family, and surprisingly within the “Picorna-like” supergroup. These results indicate an ancient recombination event has occurred at the junction of the non-structural and structure encoding regions, which led to the emergence of the entire Hepeviridae family.
    [Show full text]
  • Insect Transmitted Viruses of Grains CP
    INDUSTRY BIOSECURITY PLAN FOR THE GRAINS INDUSTRY Generic Contingency Plan Sap-sucking insect transmitted viruses affecting the grains industry Specific examples detailed in this plan: Peanut Stripe Virus (Potyvirus), Chickpea Chlorotic Dwarf Virus (Geminivirus) and Chickpea Chlorotic Stunt Virus (Polerovirus) Plant Health Australia May 2014 Disclaimer The scientific and technical content of this document is current to the date published and all efforts have been made to obtain relevant and published information on the pest. New information will be included as it becomes available, or when the document is reviewed. The material contained in this publication is produced for general information only. It is not intended as professional advice on any particular matter. No person should act or fail to act on the basis of any material contained in this publication without first obtaining specific, independent professional advice. Plant Health Australia and all persons acting for Plant Health Australia in preparing this publication, expressly disclaim all and any liability to any persons in respect of anything done by any such person in reliance, whether in whole or in part, on this publication. The views expressed in this publication are not necessarily those of Plant Health Australia. Further information For further information regarding this contingency plan, contact Plant Health Australia through the details below. Address: Level 1, 1 Phipps Close DEAKIN ACT 2600 Phone: 61 2 6215 7700 Fax: 61 2 6260 4321 Email: [email protected] ebsite: www.planthealthaustralia.com.au An electronic copy of this plan is available from the web site listed above. © Plant Health Australia Limited 2014 Copyright in this publication is owned by Plant Health Australia Limited, except when content has been provided by other contributors, in which case copyright may be owned by another person.
    [Show full text]
  • The Hcpro from the Potyviridae Family: an Enviable Multitasking Helper Component That Every Virus Would Like to Have
    bs_bs_banner MOLECULAR PLANT PATHOLOGY (2018) 19(3), 744–763 DOI: 10.1111/mpp.12553 Review The HCPro from the Potyviridae family: an enviable multitasking Helper Component that every virus would like to have ADRIAN A. VALLI1,*, ARAIZ GALLO1 , BERNARDO RODAMILANS1 ,JUANJOSELOPEZ-MOYA 2 AND JUAN ANTONIO GARCIA 1,* 1Centro Nacional de Biotecnologıa (CNB-CSIC), Madrid 28049, Spain 2Center for Research in Agricultural Genomics (CRAG-CSIC-IRTA-UAB-UB), Campus UAB, Bellaterra, Barcelona 08193, Spain structure, RNA sequence and transmission vectors (Revers and SUMMARY Garcıa, 2015). Most potyvirids (i.e. viruses belonging to the RNA viruses have very compact genomes and so provide a Potyviridae family) have monopartite, single-stranded and unique opportunity to study how evolution works to optimize the positive-sense genomes of around 10 000 nucleotides that are use of very limited genomic information. A widespread viral encapsidated by multiple units of a single coat protein (CP) in flex- strategy to solve this issue concerning the coding space relies on uous and filamentous virus particles of 680–900 nm in length and the expression of proteins with multiple functions. Members of 11–14 nm in diameter (Kendall et al., 2008). Exceptionally, bymo- the family Potyviridae, the most abundant group of RNA viruses viruses are peculiar in this regard, as they have a bipartite genome in plants, offer several attractive examples of viral factors which that is encapsidated separately. Inside the infected cells, the viral play roles in diverse infection-related
    [Show full text]
  • Since January 2020 Elsevier Has Created a COVID-19 Resource Centre with Free Information in English and Mandarin on the Novel Coronavirus COVID- 19
    Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID- 19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. CHAPTER ONE Supramolecular Architecture of the Coronavirus Particle B.W. Neuman*,†,1, M.J. Buchmeier{ *School of Biological Sciences, University of Reading, Reading, United Kingdom †College of STEM, Texas A&M University, Texarkana, Texarkana, TX, United States { University of California, Irvine, Irvine, CA, United States 1Corresponding author: e-mail address: [email protected] Contents 1. Introduction 1 2. Virion Structure and Durability 4 3. Viral Proteins in Assembly and Fusion 5 3.1 Membrane Protein 5 3.2 Nucleoprotein 8 3.3 Envelope Protein 9 3.4 Spike Protein 11 4. Evolution of the Structural Proteins 13 References 16 Abstract Coronavirus particles serve three fundamentally important functions in infection. The virion provides the means to deliver the viral genome across the plasma membrane of a host cell. The virion is also a means of escape for newly synthesized genomes.
    [Show full text]
  • Molecular Analysis of Vanilla Mosaic Virus from the Cook Islands
    Molecular Analysis of Vanilla mosaic virus from the Cook Islands Christopher Puli’uvea A thesis submitted to Auckland University of Technology in partial fulfilment of the requirements for the degree of Master of Science (MSc) 2017 School of Science I Abstract Vanilla was first introduced to French Polynesia in 1848 and from 1899-1966 was a major export for French Polynesia who then produced an average of 158 tonnes of cured Vanilla tahitensis beans annually. In 1967, vanilla production declined rapidly to a low of 0.6 tonnes by 1981, which prompted a nation-wide investigation with the aim of restoring vanilla production to its former levels. As a result, a mosaic-inducing virus was discovered infecting V. tahitensis that was distinct from Cymbidium mosaic virus (CyMV) and Odontoglossum ringspot virus (ORSV) but serologically related to dasheen mosaic virus (DsMV). The potyvirus was subsequently named vanilla mosaic virus (VanMV) and was later reported to infect V. tahitensis in the Cook Islands and V. planifolia in Fiji and Vanuatu. Attempts were made to mechanically inoculate VanMV to a number of plants that are susceptible to DsMV, but with no success. Based on a partial sequence analysis, VanMV-FP (French Polynesian isolate) and VanMV-CI (Cook Islands isolate) were later characterised as strains of DsMV exclusively infecting vanilla. Since its discovery, little information is known about how VanMV-CI acquired the ability to exclusively infect vanilla and lose its ability to infect natural hosts of DsMV or vice versa. The aims of this research were to characterise the VanMV genome and attempt to determine the molecular basis for host range specificity of VanMV-CI.
    [Show full text]
  • RNA Viral Metagenome of Whiteflies Leads to the Discovery and Characterization of a Whitefly- Transmitted Carlavirus in North America
    University of South Florida Scholar Commons Marine Science Faculty Publications College of Marine Science 1-21-2014 RNA Viral Metagenome of Whiteflies Leads ot the Discovery and Characterization of a Whitefly-Transmitted Carlavirus in North America Karyna Rosario University of South Florida, [email protected] Heather Capobianco University of Florida Terry Fei Fan Ng University of South Florida Mya Breitbart University of South Florida, [email protected] Jane E. Polston University of Florida Follow this and additional works at: https://scholarcommons.usf.edu/msc_facpub Part of the Marine Biology Commons Scholar Commons Citation Rosario, Karyna; Capobianco, Heather; Ng, Terry Fei Fan; Breitbart, Mya; and Polston, Jane E., "RNA Viral Metagenome of Whiteflies Leads ot the Discovery and Characterization of a Whitefly-Transmitted Carlavirus in North America" (2014). Marine Science Faculty Publications. 229. https://scholarcommons.usf.edu/msc_facpub/229 This Article is brought to you for free and open access by the College of Marine Science at Scholar Commons. It has been accepted for inclusion in Marine Science Faculty Publications by an authorized administrator of Scholar Commons. For more information, please contact [email protected]. RNA Viral Metagenome of Whiteflies Leads to the Discovery and Characterization of a Whitefly- Transmitted Carlavirus in North America Karyna Rosario1*, Heather Capobianco2, Terry Fei Fan Ng1¤, Mya Breitbart1, Jane E. Polston2 1 College of Marine Science, University of South Florida, Saint Petersburg, Florida, United States of America, 2 Department of Plant Pathology, University of Florida, Gainesville, Florida, United States of America Abstract Whiteflies from the Bemisia tabaci species complex have the ability to transmit a large number of plant viruses and are some of the most detrimental pests in agriculture.
    [Show full text]