{"title":"Molecular characterization of a novel victorivirus isolated from Stagonosporopsis citrulli","authors":"Xiaofang Ma, Xing Zhang, Lifeng Zhai, Yingchun Jiang, Peter Moffett, Yu Zhang, Fang Song, Xin Song, Zhijing Wang, Ligang He, Shengmei Ji, Liming Wu","doi":"10.1007/s00705-024-06185-2","DOIUrl":"10.1007/s00705-024-06185-2","url":null,"abstract":"<div><p>Members of the fungal genus <i>Stagonosporopsis</i> are important plant pathogens that can cause severe disease on a wide range of economically important plants and crops. Here, a novel victorivirus, tentatively named \"Stagonosporopsis citrulli victorivirus 1\" (SciVV1), was isolated from <i>S. citrulli</i> isolate HS2-8. The SciVV1 genome is 5,163 nucleotides in length, with a predicted GC content of 63.85%, and contains two open reading frames (ORF1 and ORF2), which overlap at an AUGA sequence. ORF1 and ORF2 are predicted to encode a coat protein (CP) and an RNA-dependent RNA polymerase (RdRp). A phylogenetic tree based on RdRp amino acid (aa) sequences showed that SciVV1 clustered together with members of the genus <i>Victorivirus</i> in the family <i>Pseudototiviridae</i>. Our results indicate that SciVV1 is a novel victorivirus. This is the first report of the complete genome sequence of SciVV1 infecting <i>S. citrulli</i>.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142811108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Direct TaqMan assay for the detection and genotyping of bovine viral diarrhea virus types 1 and 2","authors":"Shakir Ullah, Kosuke Notsu, Akatsuki Saito, Tamaki Okabayashi, Hirohisa Mekata, Norikazu Isoda, Satoshi Sekiguchi","doi":"10.1007/s00705-024-06207-z","DOIUrl":"10.1007/s00705-024-06207-z","url":null,"abstract":"<div><p>Bovine viral diarrhea (BVD), caused by bovine viral diarrhea virus (BVDV), has a significant economic impact on affected farms worldwide. For effective disease control, it is crucial to select an appropriate vaccine based on the specific genotype of BVDV. Therefore, developing a rapid and reliable assay to detect and genotype BVDV is imperative for controlling the spread of disease. In this study, we developed a TaqMan assay to detect and genotype BVDV types 1 and 2 directly in bovine serum without extraction of RNA. The direct BVDV TaqMan assay effectively detected both BVDV1 and BVDV2 with confirmed specificity and showed no cross-reactivity with any of the other viruses tested, including bovine respiratory syncytial virus, bovine coronavirus, Akabane virus, bovine herpesvirus 1, bovine parainfluenza virus 3, bovine immunodeficiency virus, and bovine leukemia virus. The assay could detect the virus in serum samples with a titer as low as 10<sup>2</sup> TCID<sub>50</sub>/mL in two out of three trials for BVDV1 and all three trials for BVDV2, indicating that its sensitivity is equivalent to that of virus isolation. Our findings represent a significant advancement in BVDV detection and typing directly from bovine serum.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00705-024-06207-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142811107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Grant A. Chambers, Andrew D.W. Geering, Daniel R. Bogema, Paul Holford, Georgios Vidalakis, Nerida J. Donovan
{"title":"Characterisation of the genetic diversity of citrus viroid VII using amplicon sequencing","authors":"Grant A. Chambers, Andrew D.W. Geering, Daniel R. Bogema, Paul Holford, Georgios Vidalakis, Nerida J. Donovan","doi":"10.1007/s00705-024-06191-4","DOIUrl":"10.1007/s00705-024-06191-4","url":null,"abstract":"<div><p>Viroids occur in plants as swarms of sequence variants clustered around a dominant variant, leading to adoption of the term ‘quasispecies’ to describe the viroid population in an individual host. The composition of the quasispecies can potentially change according to the age of the infection, the position of the leaf or branch in the canopy, and the host species. The primary aim of this study was to investigate the quasispecies concept for citrus viroid VII (CVd-VII), a recently discovered member of the family <i>Pospiviroidae</i>. Three experiments were conducted to determine factors affecting viroid variability (i) within different tissues of a lemon plant, (ii) among different plants of the same species (citron), and (iii) among different species and hybrids of citrus. Using two primer sets to produce amplicons for high-throughput sequencing, viroid population profiles were generated for each sample. The number of variants that were identified with both primer sets ranged from 2 to 13 per sample, and each sample comprised 1 to 4 major (> 10% sample) variants. The composition of variants differed in samples from different plants and among tissue types of a single plant. Single-nucleotide polymorphisms (SNPs), mostly in the form of substitutions, were the primary source of variation; in this study, SNPs were observed in approximately 10% of the viroid genome. The results of the three experiments indicate that CVd-VII follows the quasispecies model as reported for other viroids and that variability occurs in viroid populations in different tissue types and host species.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00705-024-06191-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142811109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Complete genome sequence of a novel bipartite begomovirus infecting butterfly pea (Clitoria ternatea L.) in India","authors":"Mohammad Akram, Deepender Kumar, Naimuddin Kamaal","doi":"10.1007/s00705-024-06203-3","DOIUrl":"10.1007/s00705-024-06203-3","url":null,"abstract":"<div><p>In India, plants from the non-cultivated, horticultural, and agricultural categories are commonly infected with various begomoviruses, most of which produce yellow mosaic, bright yellow mosaic, or curling symptoms on leaves. In this study, the complete genome of a new bipartite begomovirus causing yellow mosaic disease (YMD) in butterfly pea (<i>Clitoria ternatea</i> L.) was characterized using rolling-circle amplification followed by restriction digestion, cloning, and sequencing to obtain the full-length DNA-A (2727 nt) and DNA-B (2648 nt) sequences. The DNA-A and DNA-B components have a genome organization that is typical of the Old World bipartite begomoviruses, and the common regions (95 nt) of DNA-A and DNA-B share 91% nucleotide sequence identity, which is well above the threshold (>85%) for them to be considered cognate components. Both DNA molecules contain a begomovirus nonanucleotide motif, conserved iterons, and a putative stem-loop structure. The DNA-A of this virus was found to be most similar to that of Cajanus scarabaeoides yellow mosaic virus (CsYMV), with 82.61% nucleotide sequence identity, which is far below the species demarcation threshold (< 91%) for begomoviruses, whereas the DNA-B sequence showed the most similarity (77.16% identity) to that of Rhynchosia yellow mosaic virus (RhYMV). In phylogenetic analysis, both DNA-A and DNA-B were formed a clade with the corresponding genome segments of other YMD-causing begomoviruses. Based on these characteristics, this virus, for which the name “butterfly pea yellow mosaic virus” (BpYMV) is proposed, should be considered a member of a new species in the genus <i>Begomovirus</i>.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kevin Olaya-Bravo, Daniel Martínez-Flores, Aaron Pavel Rodríguez-Hernández, Ileana Tobías-Juárez, Jorge A. Castro-Rodríguez, Alicia Sampieri, Luis Vaca
{"title":"Resolving viral structural complexity by super-resolution microscopy","authors":"Kevin Olaya-Bravo, Daniel Martínez-Flores, Aaron Pavel Rodríguez-Hernández, Ileana Tobías-Juárez, Jorge A. Castro-Rodríguez, Alicia Sampieri, Luis Vaca","doi":"10.1007/s00705-024-06192-3","DOIUrl":"10.1007/s00705-024-06192-3","url":null,"abstract":"<div><p>In this review, we discuss different super-resolution microscopy (SRM) techniques employed to study viral structures and virus composition with nanometric resolution. We describe the basic principles of the different microscopy methods utilized to break the light diffraction limit, enabling the study of protein composition in viral structures. Finally, we demonstrate for the first time the differential spatial distribution of two structural proteins in an individual baculovirus using single-molecule super-resolution microscopy. We discuss the future of these powerful methods for virology, medicine, and biotechnology applications.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Roberto Navarro-López, Héctor Enrique Valdez-Gómez, Mitzunari Zalapa-Hernández, Mario Solís-Hernández, Miguel Ángel Márquez-Ruiz, Abel Rosas-Tellez, Carlos Guichard-Romero, Gerardo Cartas-Heredia, Romeo Morales-Espinoza, Claudio L. Afonso, Ninnet Gómez-Romero
{"title":"An epizootic of highly pathogenic avian influenza virus H7N3 in a Mexican ecological reserve","authors":"Roberto Navarro-López, Héctor Enrique Valdez-Gómez, Mitzunari Zalapa-Hernández, Mario Solís-Hernández, Miguel Ángel Márquez-Ruiz, Abel Rosas-Tellez, Carlos Guichard-Romero, Gerardo Cartas-Heredia, Romeo Morales-Espinoza, Claudio L. Afonso, Ninnet Gómez-Romero","doi":"10.1007/s00705-024-06200-6","DOIUrl":"10.1007/s00705-024-06200-6","url":null,"abstract":"<div><p>In this case study, we describe an outbreak of highly pathogenic avian influenza (HPAI) virus subtype H7N3 in an ecological reserve in Chiapas, Mexico, affecting captive and wild birds. The virus was detected mainly in plain chachalacas displaying respiratory and gastrointestinal clinical signs and death within 24 hours. Mortality in white-fronted parrots and a clay-colored thrush was also recorded. We describe control strategies implemented to prevent virus dissemination and active surveillance within the risk area. Phylogenetic analysis revealed that the HPAI H7N3 virus detected in affected birds shared a close genetic relationship with Mexican H7N3 isolates from 2012.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ezekiel S. Oloruntimehin, Sofya I. Volodina, Ivan V. Patraman, Grigory A. Nadtochey, Alexander S. Malogolovkin
{"title":"Molecular and ultrastructural characteristics of virulent and attenuated vaccine strains of goose parvovirus LIV-22","authors":"Ezekiel S. Oloruntimehin, Sofya I. Volodina, Ivan V. Patraman, Grigory A. Nadtochey, Alexander S. Malogolovkin","doi":"10.1007/s00705-024-06188-z","DOIUrl":"10.1007/s00705-024-06188-z","url":null,"abstract":"<div><p>The disease caused by goose parvovirus (GPV) affects young goslings and ducks and leads to substantial losses for farmers due to high mortality rates, reaching 70-100% in naive flocks. Here, we present the results of a study focusing on the historical virulent GPV LIV-22 strain, which was isolated in the USSR in 1972. An attenuated GPV LIV-22 vaccine strain that was generated by continuous passaging in goose embryonic fibroblasts was also studied. Phylogenetic analysis placed both GPV LIV-22 strains in the classical GPV group, close to the vaccine and low-pathogenic strains. However, several individual changes in the GPV LIV-22 VP1 gene highlight the uniqueness of the evolution and adaptation mechanism of GPV LIV-22 strains. Transmission electron microscopy (TEM) revealed severe ultrastructural changes in goose hepatocytes and enterocytes as early as 24-48 h postinfection, confirming abrupt GPV pathogenesis. This description of some of the essential characteristics of the GPV LIV-22 virulent and vaccine strain will be useful for studying GPV evolution and molecular pathogenesis.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Erandi Gunasekara, M. Hair-Bejo, I. Aini, A. R. Omar
{"title":"Molecular characterisation of novel reassortants of the G57 genotype of low-pathogenic avian influenza H9N2 virus isolated from poultry farms in Malaysia","authors":"Erandi Gunasekara, M. Hair-Bejo, I. Aini, A. R. Omar","doi":"10.1007/s00705-024-06159-4","DOIUrl":"10.1007/s00705-024-06159-4","url":null,"abstract":"<div><p>In late 2017, Malaysia reported repeated outbreaks of low-pathogenic avian influenza virus (LPAI) H9N2 infections in commercial poultry flocks. Two H9N2 viruses, A/chicken/Malaysia/Negeri Sembilan/UPM994/2018 and A/chicken/Malaysia/Johore/UPM2033/2019, which were isolated from breeder and layer flocks in Peninsular Malaysia, were characterised in this study. Phylogenetic analysis revealed that both viruses were multiple-genotype reassortant strains with genes originating from Y280-like (HA gene), F/98-like (NS, NP and PA), G1-like (M and PB2), and Korean-like (PB1) lineages, indicating that they belong to a novel genotype that is divergent from the G57 lineage of Chinese origin. Both isolates were predicted to have a dibasic cleavage site (333-PSRSSRGLF-341) in the HA gene cleavage locations. Thus, the novel Malaysian H9N2 strain is a Y280-like virus resembling H9N2 isolates from Indonesia, Taiwan, Japan, and Cambodia. This virus is of the G57 lineage but has a novel genotype of the PB1 gene originating from a Korean-lineage H9N2 virus, which has not been detected before in the region.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Complete genome sequence of Valeriana jatamansi cryptic virus 1: a novel member of the genus Alphapartitivirus infecting Valeriana jatamansi Jones","authors":"Chaorong Yang, Bifan Chu, Rex Frimpong Anane, Jianqin He, Dexi Wu, Yonghong Yang, Xuehua Li, Zhongan Liu, Jianhua Wang, Jinyan Shang, Mingfu Zhao","doi":"10.1007/s00705-024-06194-1","DOIUrl":"10.1007/s00705-024-06194-1","url":null,"abstract":"<div><p>A new double-stranded RNA (dsRNA) virus, tentatively named \"Valeriana jatamansi cryptic virus 1\" (VJCV1, GenBank accession nos. PP482519 and PP482520), was isolated from diseased <i>Valeriana jatamansi</i> Jones plants exhibiting vein-banding in Yunnan. Its complete genome sequence was determined using metatranscriptomic and Sanger sequencing. The genome of VJCV1 consists of two dsRNA of different size, namely dsRNA1 (2,026 bp) and dsRNA2 (1,754 bp), which are predicted to encode an RNA-dependent RNA polymerase (RdRp, 616 aa) with molecular weight of 72.6 kDa and coat protein (CP, 491 aa) with molecular weight of 55.8 kDa, respectively. The non-coding region of dsRNA in VJCV1 is predicted to have a stem-loop structure and a poly(A) tail that are unique to the members of the genus <i>Alphapartitivirus</i>. Multiple sequence alignments showed that the RdRp and CP of VJCV1 shared the highest amino acid sequence identity (86.2% and 56.1%, respectively) with red clover cryptic virus 1 (RCCV1). These values are below the threshold for creating new species within the genus <i>Alphapartitivirus</i>. Phylogenetic analysis based on RdRp and CP sequences showed that VJCV1 clustered independently from members of the genus <i>Alphapartitivirus</i>, with RCCV1 being the closest relative. It is therefore suggested that VJCV1 should be considered a member of a new species of the genus <i>Alphapartitivirus</i> in the family <i>Partitiviridae</i>. This is the first report of a member of the genus <i>Alphapartitivirus</i> infecting a plant of the genus <i>Valeriana</i>.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shruti Mishra, Achyut Pandey, Jyoti Verma, Maitreyi S. Rajala
{"title":"Analysis of the interaction of influenza a virus nucleoprotein with host cell nucleolin","authors":"Shruti Mishra, Achyut Pandey, Jyoti Verma, Maitreyi S. Rajala","doi":"10.1007/s00705-024-06189-y","DOIUrl":"10.1007/s00705-024-06189-y","url":null,"abstract":"<div><p>Targeting interactions between a virus and a host protein is one of the important approaches to developing antiviral therapies. We previously identified host nucleolin as a novel interacting partner of the influenza A virus nucleoprotein, and it was demonstrated that this interaction restricts virus replication. In the current study, we examined the interaction of nucleolin with the viral nucleoprotein at the domain and amino acid levels using <i>in vitro</i> and <i>in silico</i> approaches. Both approaches demonstrated a direct and specific interaction between these two proteins. Furthermore, it was observed that previous pandemic strains of influenza A virus had specific amino acid residues in their nucleoproteins that were predicted to be critical for interaction with nucleolin. This preliminary analysis provides insights into the binding process, which could be explored for developing antiviral strategies.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}