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Liu H, Cao T, Chen H, Zhang J, Li W, Zhang Y, Liu H. Two-color lateral flow nucleic acid assay combined with double-tailed recombinase polymerase amplification for simultaneous detection of chicken and duck adulteration in mutton. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2023.105209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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2
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Liu H, Cao R, Xu W, Ma Y, Li W, Zhang Y, Liu H. A cost-effective method for the rapid detection of chicken adulteration in meat using recombinase polymerase amplification combined with nucleic acid hybridization lateral flow strip. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Choi YR, Kim SW, Shang K, Park JY, Zhang JF, Jang HK, Wei B, Cha SY, Kang M. Avian Reoviruses From Wild Birds Exhibit Pathogenicity to Specific Pathogen Free Chickens by Footpad Route. Front Vet Sci 2022; 9:844903. [PMID: 35280152 PMCID: PMC8907544 DOI: 10.3389/fvets.2022.844903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 01/31/2022] [Indexed: 11/13/2022] Open
Abstract
Avian reoviruses (ARVs) are ubiquitous in domestic poultry with 80% of them being non-pathogenic and they are frequently found in clinically healthy birds. ARVs have also been known to be the etiological agents of viral arthritis (VA), tenosynovitis, myocarditis, runting-stunting syndrome (RSS), and respiratory and enteric disease in chickens. Significant economic losses during the process of poultry husbandry are due, in part, to unmitigated ARV infections throughout the poultry industry. Recently, many isolates shared genetic similarities between those recovered from wild birds and those recovered from poultry. One explanation may be that there is a degree of spillover and spillback of ARVs between the two groups. However, studies on the role of wild birds in the epidemiology and pathogenicity of ARVs are insufficient. Here, we describe the pathogenicity in specific pathogen-free (SPF) chickens of ARV originating from wild birds. The challenge experiment was conducted in six groups including a negative control group, a positive control group (reference strain of S1133), and four groups (A15-157, A18-13, A18-205, A19-106) infected with ARVs from wild birds. The 7-day-old SPF chickens were inoculated with 106TCID50 ARV to evaluate the clinical signs, changes in weight gain, gross lesions, histological changes, virus replication, and serum antibody levels. The peak of clinical signs was from 3 to 5 days post infection (dpi). In addition, the death of one chicken was found in the group infected with the A18-13 isolate. Reduced body weight was also found in chickens infected with ARVs from wild birds compared to the negative control group. All the ARVs infection groups showed noticeable swelling of the footpad. In addition, ARVs were detected in the bursa, tendon, and hock joint by reverse transcription-polymerase chain reaction (RT-PCR) in all infected groups at 5 and 15 dpi. Histopathological observations revealed acute inflammatory responses on the synovium covering the joint surfaces (arthritis) and tendon sheaths (tenosynovitis), as well as bursa atrophy and lymphocyte depletion. The analysis of the humoral response was performed by ELISA assay, and chickens infected with ARVs showed seroconverted. In conclusion, this study described the typical severe disease of acute VA and tenosynovitis in SPF chickens infected with ARVs derived from wild birds. This study confirmed the pathogenicity of ARVs infection in SPF chickens for the first time, and these results enrich our understanding of the pathogenicity of ARVs derived from wild birds.
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Kim SW, Choi YR, Park JY, Wei B, Shang K, Zhang JF, Jang HK, Cha SY, Kang M. Isolation and Genomic Characterization of Avian Reovirus From Wild Birds in South Korea. Front Vet Sci 2022; 9:794934. [PMID: 35155656 PMCID: PMC8831841 DOI: 10.3389/fvets.2022.794934] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 01/06/2022] [Indexed: 11/16/2022] Open
Abstract
Avian reoviruses (ARVs) cause severe arthritis, tenosynovitis, pericarditis, and depressed growth in chickens, and these conditions have become increasingly frequent in recent years. Studies on the role of wild birds in the epidemiology of ARVs are insufficient. This study provides information about currently circulating ARVs in wild birds by gene detection using diagnostic RT-PCR, virus isolation, and genomic characterization. In this study, we isolated and identified 10 ARV isolates from 7,390 wild birds' fecal samples, including migratory bird species (bean goose, Eurasian teal, Indian spot-billed duck, and mallard duck) from 2015 to 2019 in South Korea. On comparing the amino acid sequences of the σC-encoding gene, most isolates, except A18-13, shared higher sequence similarity with the commercial vaccine isolate S1133 and Chinese isolates. However, the A18-13 isolate is similar to live attenuated vaccine av-S1133 and vaccine break isolates (SD09-1, LN09-1, and GX110116). For the p10- and p17-encoding genes, all isolates have identical fusion associated small transmembrane (FAST) protein and nuclear localization signal (SNL) motif to chicken-origin ARVs. Phylogenetic analysis of the amino acid sequences of the σC-encoding gene revealed that all isolates were belonged to genotypic cluster I. For the p10- and p17-encoding genes, the nucleotide sequences of all isolates indicated close relationship with commercial vaccine isolate S1133 and Chinese isolates. For the σNS-encoding gene, the nucleotide sequences of all isolates indicated close relationship with the Californian chicken-origin isolate K1600657 and belonged to chicken-origin ARV cluster. Our data indicates that wild birds ARVs were derived from the chicken farms. This finding suggests that wild birds serve as natural carriers of such viruses for domestic poultry.
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Kirisawa R, Kato R, Furusaki K, Onodera T. Universal Virucidal Activity of Calcium Bicarbonate Mesoscopic Crystals That Provides an Effective and Biosafe Disinfectant. Microorganisms 2022; 10:microorganisms10020262. [PMID: 35208717 PMCID: PMC8877192 DOI: 10.3390/microorganisms10020262] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/21/2022] [Accepted: 01/21/2022] [Indexed: 02/01/2023] Open
Abstract
We investigated the virucidal effects in solution of a new type of disinfectant, calcium bicarbonate mesoscopic crystals, designated CAC-717, against various types of virus. CAC-717 in solution is alkaline (pH 12.4) and has a self-electromotive force that generates pulsed electrical fields. Upon application to human skin, the pH of the solution becomes 8.4. CAC-717 contains no harmful chemicals and is thus non-irritating and harmless to humans and animals. Its virucidal effects were tested against six types of animal virus: enveloped double-strand (ds)-DNA viruses, non-enveloped ds-DNA viruses, non-enveloped single strand (ss)-DNA viruses, enveloped ss-RNA viruses, non-enveloped ss-RNA viruses, and non-enveloped ds-RNA viruses. The treatment resulted in a reduction in viral titer of at least 3.00 log10 to 6.38 log10. Fetal bovine serum was added as a representative organic substance. When its concentration was ≥20%, the virucidal effect of CAC-717 was reduced. Real-time PCR revealed that CAC-717 did not reduce the quantity of genomic DNA of most of the DNA viruses, but it greatly reduced that of the genomic RNA of most of the RNA viruses. CAC-717 may therefore be a useful biosafe disinfectant for use against a broad range of viruses.
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Affiliation(s)
- Rikio Kirisawa
- Department of Pathobiology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan;
- Correspondence: ; Tel.: +81-11-388-4748
| | - Rika Kato
- Department of Pathobiology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan;
| | - Koichi Furusaki
- Mineral Activation Technical Research Center, Ohmuta 836-0041, Japan;
| | - Takashi Onodera
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo 113-8657, Japan;
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6
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Farkas SL, Varga-Kugler R, Ihász K, Marton S, Gál J, Palya V, Bányai K. Genomic characterization of avian and neoavian orthoreoviruses detected in pheasants. Virus Res 2021; 297:198349. [PMID: 33631220 DOI: 10.1016/j.virusres.2021.198349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 02/11/2021] [Accepted: 02/16/2021] [Indexed: 10/22/2022]
Abstract
Avian reoviruses are well-known pathogens seriously affecting the productivity of poultry industry. Game birds represent a small segment of the agricultural sector and much remained to be learnt about factors affecting productivity. Here we show that reovirus infections might occur in pheasants and demonstrate that reoviruses of pheasants are of diverse origin. The complete or coding-complete genomic sequences of two Hungarian reovirus strains, D1996/2/1 and Reo/HUN/Pheasant/216/2015, have been determined in this study. The strain D1996/2/1 was isolated in 2012 from birds with gizzard erosion, whereas the other strain was isolated in 2015 from diarrheic pheasant poults. Phylogenetic analyses showed that none of the Hungarian isolates shared common origin with a pheasant reovirus detected recently in the United States. Additionally, we found that Reo/HUN/Pheasant/216/2015 is a multi-reassortant reovirus within the species Avian orthoreovirus that shared genetic relationship with turkey reoviruses (σC), partridge reoviruses (λA, σB), and chicken reoviruses (λB, λC, μA, σA, and σNS), in the respective gene phylogenies, whereas two genes (μB and μNS) did not reveal any possible common ancestors. The other isolate, D1996/2/1, was found to be distantly related to previously described reoviruses raising the possibility that it might represent a novel orthoreovirus species or a new genogroup within the newly accepted species, Neoavian orthoreovirus. The genetic diversity among pheasant reoviruses could raise challenges for virus classification as well as for development of molecular diagnostic tools and vaccine based prevention and control measures.
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Affiliation(s)
- Szilvia L Farkas
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungaria krt. 21, Budapest, 1143, Hungary; University of Veterinary Medicine, Istvan u. 2, Budapest, 1078, Hungary
| | - Renáta Varga-Kugler
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungaria krt. 21, Budapest, 1143, Hungary
| | - Katalin Ihász
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungaria krt. 21, Budapest, 1143, Hungary
| | - Szilvia Marton
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungaria krt. 21, Budapest, 1143, Hungary
| | - János Gál
- University of Veterinary Medicine, Istvan u. 2, Budapest, 1078, Hungary
| | - Vilmos Palya
- Ceva-Phylaxia Veterinary Biologicals Co. LTD, Szállás u. 5, Budapest, 1107, Hungary
| | - Krisztián Bányai
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungaria krt. 21, Budapest, 1143, Hungary.
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Harima H, Sasaki M, Kajihara M, Mori-Kajihara A, Hang'ombe BM, Changula K, Orba Y, Ogawa H, Simuunza M, Yoshida R, Mweene A, Takada A, Sawa H. Detection of novel orthoreovirus genomes in shrew (Crocidura hirta) and fruit bat (Rousettus aegyptiacus). J Vet Med Sci 2019; 82:162-167. [PMID: 31866632 PMCID: PMC7041985 DOI: 10.1292/jvms.19-0424] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Orthoreoviruses have been indentified in several mammals, however, there is no
information about orthoreoviruses in shrews. In this study, we screened wild animals in
Zambia, including shrews, rodents, and bats for the detection of orthoreoviruses. Two
orthoreovirus RNA genomes were detected from a shrew intestinal-contents (1/24) and a bat
colon (1/96) sample by reverse-transcription (RT)-PCR targeting the RNA-dependent RNA
polymerase gene of orthoreoviruses. Phylogenetic analyses revealed that each of the
identified orthoreoviruses formed a distinct branch among members of the
Orthoreovirus genus. This is the first report that shrews are
susceptible to orthoreovirus infection. Our results suggest the existence of undiscovered
orthoreoviruses in shrews and provide important information about the genetic diversity of
orthoreoviruses.
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Affiliation(s)
- Hayato Harima
- Hokudai Center for Zoonosis Control in Zambia, School of Veterinary Medicine, the University of Zambia, PO Box 32379, Lusaka, Zambia
| | - Michihito Sasaki
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, N20, W10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan
| | - Masahiro Kajihara
- Hokudai Center for Zoonosis Control in Zambia, School of Veterinary Medicine, the University of Zambia, PO Box 32379, Lusaka, Zambia
| | - Akina Mori-Kajihara
- Division of Global Epidemiology, Research Center for Zoonosis Control, Hokkaido University, N20, W10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan
| | - Bernard M Hang'ombe
- Department of Para-clinical studies, School of Veterinary Medicine, the University of Zambia, PO Box 32379, Lusaka, Zambia.,Africa Center of Excellence for Infectious Diseases of Humans and Animals, the University of Zambia, PO Box 32379, Lusaka, Zambia
| | - Katendi Changula
- Department of Para-clinical studies, School of Veterinary Medicine, the University of Zambia, PO Box 32379, Lusaka, Zambia.,Africa Center of Excellence for Infectious Diseases of Humans and Animals, the University of Zambia, PO Box 32379, Lusaka, Zambia
| | - Yasuko Orba
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, N20, W10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan
| | - Hirohito Ogawa
- Department of Virology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Martin Simuunza
- Africa Center of Excellence for Infectious Diseases of Humans and Animals, the University of Zambia, PO Box 32379, Lusaka, Zambia.,Department of Disease Control, School of Veterinary Medicine, the University of Zambia, PO Box 32379, Lusaka, Zambia
| | - Reiko Yoshida
- Division of Global Epidemiology, Research Center for Zoonosis Control, Hokkaido University, N20, W10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan
| | - Aaron Mweene
- Africa Center of Excellence for Infectious Diseases of Humans and Animals, the University of Zambia, PO Box 32379, Lusaka, Zambia.,Department of Disease Control, School of Veterinary Medicine, the University of Zambia, PO Box 32379, Lusaka, Zambia
| | - Ayato Takada
- Division of Global Epidemiology, Research Center for Zoonosis Control, Hokkaido University, N20, W10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan.,Africa Center of Excellence for Infectious Diseases of Humans and Animals, the University of Zambia, PO Box 32379, Lusaka, Zambia.,Department of Disease Control, School of Veterinary Medicine, the University of Zambia, PO Box 32379, Lusaka, Zambia.,Global Station for Zoonosis Control, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Kita-ku, Sapporo, Hokkaido 001-0020, Japan
| | - Hirofumi Sawa
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, N20, W10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan.,Africa Center of Excellence for Infectious Diseases of Humans and Animals, the University of Zambia, PO Box 32379, Lusaka, Zambia.,Department of Disease Control, School of Veterinary Medicine, the University of Zambia, PO Box 32379, Lusaka, Zambia.,Global Station for Zoonosis Control, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Kita-ku, Sapporo, Hokkaido 001-0020, Japan.,Global Virus Network, 725 West Lombard St, Room S413, Baltimore, MD 21201, USA
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Abstract
With no limiting membrane surrounding virions, nonenveloped viruses have no need for membrane fusion to gain access to intracellular replication compartments. Consequently, nonenveloped viruses do not encode membrane fusion proteins. The only exception to this dogma is the fusogenic reoviruses that encode fusion-associated small transmembrane (FAST) proteins that induce syncytium formation. FAST proteins are the smallest viral membrane fusion proteins and, unlike their enveloped virus counterparts, are nonstructural proteins that evolved specifically to induce cell-to-cell, not virus-cell, membrane fusion. This distinct evolutionary imperative is reflected in structural and functional features that distinguish this singular family of viral fusogens from all other protein fusogens. These rudimentary fusogens comprise specific combinations of different membrane effector motifs assembled into small, modular membrane fusogens. FAST proteins offer a minimalist model to better understand the ubiquitous process of protein-mediated membrane fusion and to reveal novel mechanisms of nonenveloped virus dissemination that contribute to virulence.
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Affiliation(s)
- Roy Duncan
- Department of Microbiology & Immunology, Department of Biochemistry & Molecular Biology, and Department of Pediatrics, Dalhousie University, Halifax, Nova Scotia, Canada, B3H 4R2;
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Styś-Fijoł N, Kozdruń W, Czekaj H. Detection of Avian Reoviruses in Wild Birds in Poland. J Vet Res 2017; 61:239-245. [PMID: 29978079 PMCID: PMC5894429 DOI: 10.1515/jvetres-2017-0033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 08/17/2017] [Indexed: 11/15/2022] Open
Abstract
Introduction The purpose of this study was to determine the occurrence of avian reovirus (ARV) infections in wild birds in Poland and attempt to propagate the selected ARV strains in chicken embryo kidney (CEK) cells or chicken SPF embryos. Material and Methods The study included 192 wild birds representing 32 species, collected between 2014 and 2016. A part of the S4 segment encoding the σNS protein of avian reoviruses (ARVs) isolated from different species of wild birds from that period was amplified. Results The presence of ARV was demonstrated in 58 (30.2%) wild birds belonging to nine orders. The isolated strains were propagated in chicken embryos by yolk sac inoculation, and CPE was induced in the infected CEK monolayer. Agar gel precipitation showed that two ARV isolates from rock pigeon and mute swan shared a common group-specific antigen with chicken reovirus S1133. Specific products of predicted size were found in two ARV isolates from the chicken embryo passage and 13 ARVs isolated from CEK cells. Conclusion The study indicates the high prevalence of ARV among wild birds in Poland and its possible transmission to farmed birds.
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Affiliation(s)
- Natalia Styś-Fijoł
- Department of Poultry Diseases, National Veterinary Research Institute, 24-100Pulawy, Poland
| | - Wojciech Kozdruń
- Department of Poultry Diseases, National Veterinary Research Institute, 24-100Pulawy, Poland
| | - Hanna Czekaj
- Department of Poultry Diseases, National Veterinary Research Institute, 24-100Pulawy, Poland
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10
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Farkas SL, Marton S, Dandár E, Kugler R, Gál B, Jakab F, Bálint Á, Kecskeméti S, Bányai K. Lineage diversification, homo- and heterologous reassortment and recombination shape the evolution of chicken orthoreoviruses. Sci Rep 2016; 6:36960. [PMID: 27830770 PMCID: PMC5103266 DOI: 10.1038/srep36960] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 10/21/2016] [Indexed: 11/09/2022] Open
Abstract
The near complete genome sequences of ten field avian orthoreovirus (ARV) strains collected from young chicken between 2002 and 2011 in Hungary have been determined in order to explore the genetic diversity and evolutionary mechanisms affecting ARVs in this region. Sequence analyses and phylogenetic calculations revealed similar geographic distribution and distinct evolution in case of eight studied strains that were closely related to the recently described Hungarian strain T1781. The remaining two strains showed the highest similarity with the US origin AVS-B. The topology of the phylogenetic trees of certain segments was affected by several potential homologous reassortment events between strains of Hungarian, Chinese and US origin. Analyzing the μB gene a possible heterologous reassortment event was identified in three Hungarian strains. Recombination events were detected in as much as a dozen cases implying that beside point mutations and reassorment this mechanism also plays an important role in the diversification of ARVs. All these mechanisms in concert may explain the reduced effectiveness of immunization using commercial vaccine strains.
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Affiliation(s)
- Szilvia L Farkas
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Hungária krt. 21, Budapest 1143, Hungary
| | - Szilvia Marton
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Hungária krt. 21, Budapest 1143, Hungary
| | - Eszter Dandár
- United Szent István és Szent László Hospital - Clinic, Nagyvárad tér 1, Budapest 1097, Hungary
| | - Renáta Kugler
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Hungária krt. 21, Budapest 1143, Hungary
| | - Bence Gál
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Hungária krt. 21, Budapest 1143, Hungary
| | - Ferenc Jakab
- János Szentágothai Research Centre, University of Pécs, Ifjúság útja 20, Pécs 7624, Hungary
| | - Ádám Bálint
- Veterinary Diagnostic Directorate, National Food Chain Safety Office, Tábornok u. 2, Budapest 1143, Hungary
| | - Sándor Kecskeméti
- Veterinary Diagnostic Directorate, National Food Chain Safety Office, Bornemissza u. 3-7, Debrecen 4031, Hungary
| | - Krisztián Bányai
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Hungária krt. 21, Budapest 1143, Hungary
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Kugler R, Marschang RE, Ihász K, Lengyel G, Jakab F, Bányai K, Farkas SL. Whole genome characterization of a chelonian orthoreovirus strain identifies significant genetic diversity and may classify reptile orthoreoviruses into distinct species. Virus Res 2016; 215:94-8. [DOI: 10.1016/j.virusres.2016.02.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 02/12/2016] [Accepted: 02/12/2016] [Indexed: 10/22/2022]
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12
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Isolation of a Novel Fusogenic Orthoreovirus from Eucampsipoda africana Bat Flies in South Africa. Viruses 2016; 8:65. [PMID: 27011199 PMCID: PMC4810255 DOI: 10.3390/v8030065] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 01/26/2016] [Accepted: 02/23/2016] [Indexed: 12/29/2022] Open
Abstract
We report on the isolation of a novel fusogenic orthoreovirus from bat flies (Eucampsipoda africana) associated with Egyptian fruit bats (Rousettus aegyptiacus) collected in South Africa. Complete sequences of the ten dsRNA genome segments of the virus, tentatively named Mahlapitsi virus (MAHLV), were determined. Phylogenetic analysis places this virus into a distinct clade with Baboon orthoreovirus, Bush viper reovirus and the bat-associated Broome virus. All genome segments of MAHLV contain a 5' terminal sequence (5'-GGUCA) that is unique to all currently described viruses of the genus. The smallest genome segment is bicistronic encoding for a 14 kDa protein similar to p14 membrane fusion protein of Bush viper reovirus and an 18 kDa protein similar to p16 non-structural protein of Baboon orthoreovirus. This is the first report on isolation of an orthoreovirus from an arthropod host associated with bats, and phylogenetic and sequence data suggests that MAHLV constitutes a new species within the Orthoreovirus genus.
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13
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Genome Sequences of Three Turkey Orthoreovirus Strains Isolated in Hungary. GENOME ANNOUNCEMENTS 2015; 3:3/6/e01333-15. [PMID: 26586882 PMCID: PMC4653784 DOI: 10.1128/genomea.01333-15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We have investigated the genomic properties of three turkey reovirus strains-19831M09, D1246, and D1104-isolated in Hungary in 2009. Sequence identity values and phylogenetic calculations indicated genetic conservativeness among the studied Hungarian strains and a close relationship with strains isolated in the United States.
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14
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Kugler R, Dandár E, Fehér E, Jakab F, Mató T, Palya V, Bányai K, Farkas SL. Phylogenetic analysis of a novel reassortant orthoreovirus strain detected in partridge (Perdix perdix). Virus Res 2015; 215:99-103. [PMID: 26597720 DOI: 10.1016/j.virusres.2015.11.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 11/12/2015] [Accepted: 11/12/2015] [Indexed: 11/25/2022]
Abstract
Avian orthoreoviruses cause various diseases in wild birds and domesticated poultry. In this study we report the detection and genomic characterization of a partridge (Perdix perdix) origin reovirus strain, D1007/2008. The virus was isolated on cell culture from acute pneumonia and infra-orbital sinusitis. The 23,497 nucleotide long genome sequence was obtained by combined use of semiconductor and capillary sequencing. Sequence and phylogenetic analyses showed that the partridge reovirus strain was related to orthoreoviruses of gallinaceous birds. In fact, five (λB, λC, μB, σC, σNS) and one (σB) out of 10 genes clustered definitely with turkey or chicken origin orthoreoviruses, respectively, whereas in the λA, μA, μNS and σA phylogenies a more distant genetic relationship was observed. Our data indicate that the identified reovirus strain is composed of a mixture of chicken and turkey orthoreovirus related alleles. This finding implies that partridges may serve as natural reservoirs for orthoreoviruses of domesticated poultry.
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Affiliation(s)
- Renáta Kugler
- Institute for Veterinary Medical Research, Centre of Agricultural Research, Hungarian Academy of Sciences, Hungária krt. 21, Budapest 1143, Hungary
| | - Eszter Dandár
- United Szent István és Szent László Hospital-Clinic, Nagyvárad tér 1, Budapest 1097, Hungary
| | - Enikő Fehér
- Institute for Veterinary Medical Research, Centre of Agricultural Research, Hungarian Academy of Sciences, Hungária krt. 21, Budapest 1143, Hungary
| | - Ferenc Jakab
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, Pécs 7642, Hungary
| | - Tamás Mató
- Ceva-Phylaxia Veterinary Biologicals Co. LTD, Szállás u. 5, Budapest 1107, Hungary
| | - Vilmos Palya
- Ceva-Phylaxia Veterinary Biologicals Co. LTD, Szállás u. 5, Budapest 1107, Hungary
| | - Krisztián Bányai
- Institute for Veterinary Medical Research, Centre of Agricultural Research, Hungarian Academy of Sciences, Hungária krt. 21, Budapest 1143, Hungary.
| | - Szilvia L Farkas
- Institute for Veterinary Medical Research, Centre of Agricultural Research, Hungarian Academy of Sciences, Hungária krt. 21, Budapest 1143, Hungary
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