Amesuviridae: a new family of plant-infecting viruses in the phylum Cressdnaviricota, realm Monodnaviria
AbstractThe phylumCressdnaviricota comprises viruses with single-stranded, circular DNA genomes that encode an HUH-type endonuclease (known as Rep). The phylum includes two classes, eight orders, and 11 families. Here, we report the creation of a twelfth family in the orderMulpavirales, classArfiviricetes of the phylumCressdnaviricota. The familyAmesuviridae comprises viruses that infect plants and is divided into two genera:Temfrudevirus, including the speciesTemfrudevirus temperatum (with temperate fruit decay-associated virus as a member), andYermavirus, including the speciesYermavirus ilicis (with yerba mate-associated...
Source: Archives of Virology - August 10, 2023 Category: Virology Source Type: research
A novel narnavirus isolated from Colletotrichum curcumae strain 780-2T
AbstractThe complete genome of a novel mycovirus, Colletotrichum curcumae narnavirus 1 (CcNV1), derived from the phytopathogenic fungusColletotrichum curcumae strain 780-2T, was sequenced and analyzed. The full sequence of CcNV1 is 3,374 nucleotides in length and contains a single large open reading frame (ORF) encoding an RNA-dependent RNA polymerase (RdRp) of 1,087 amino acids with a molecular mass of 124.2 kDa that shares the closest similarity with that of Monilinia narnavirus H (53.02% identity). RdRp phylogeny analysis showed that CcNV1 is a new member of the proposed genus"Betanarnavirus" within the family...
Source: Archives of Virology - August 10, 2023 Category: Virology Source Type: research
Renaming of the genus Flavivirus to Orthoflavivirus and extension of binomial species names within the family Flaviviridae
AbstractThis review provides a summary of the recently ratified changes to genus and species nomenclature within the virus familyFlaviviridae along with reasons for these changes. First, it was considered that the vernacular terms “flaviviral”, “flavivirus”, and “flaviviruses” could under certain circumstances be ambiguous due to the same word stem “flavi” in the taxon namesFlaviviridae andFlavivirus; these terms could either have referred to all viruses classified in the familyFlaviviridae or only to viruses classified in the included genusFlavivirus. To remove this ambiguity, the genus nameFlavivirus was ...
Source: Archives of Virology - August 10, 2023 Category: Virology Source Type: research
Turnip yellows virus variants differ in host range, transmissibility, and virulence
This study was designed to test the hypothesis that three TuYV isolates, representing each of the Australian P5 variants, differ phenotypically. In particular, the host range, vector species, transmissibility, and virulence of isolates 5414 (P5-I5414), 5509 (P5-II5509), and 5594 (P5-III5594) were examined in a series of glasshouse experiments. Only P5-I5414 readily infected faba bean (Vicia faba), only P5-II5509 infected chickpea (Cicer arietinum), and only P5-I5414 and P5-III5594 infected lettuce (Lactuca sativa).Myzus persicae transmitted each isolate, butBrevicoryne brassicae andLipaphis pseudobrassicae did not. When us...
Source: Archives of Virology - August 10, 2023 Category: Virology Source Type: research
Amesuviridae: a new family of plant-infecting viruses in the phylum Cressdnaviricota, realm Monodnaviria
AbstractThe phylumCressdnaviricota comprises viruses with single-stranded, circular DNA genomes that encode an HUH-type endonuclease (known as Rep). The phylum includes two classes, eight orders, and 11 families. Here, we report the creation of a twelfth family in the orderMulpavirales, classArfiviricetes of the phylumCressdnaviricota. The familyAmesuviridae comprises viruses that infect plants and is divided into two genera:Temfrudevirus, including the speciesTemfrudevirus temperatum (with temperate fruit decay-associated virus as a member), andYermavirus, including the speciesYermavirus ilicis (with yerba mate-associated...
Source: Archives of Virology - August 10, 2023 Category: Virology Source Type: research
A novel narnavirus isolated from Colletotrichum curcumae strain 780-2T
AbstractThe complete genome of a novel mycovirus, Colletotrichum curcumae narnavirus 1 (CcNV1), derived from the phytopathogenic fungusColletotrichum curcumae strain 780-2T, was sequenced and analyzed. The full sequence of CcNV1 is 3,374 nucleotides in length and contains a single large open reading frame (ORF) encoding an RNA-dependent RNA polymerase (RdRp) of 1,087 amino acids with a molecular mass of 124.2 kDa that shares the closest similarity with that of Monilinia narnavirus H (53.02% identity). RdRp phylogeny analysis showed that CcNV1 is a new member of the proposed genus"Betanarnavirus" within the family...
Source: Archives of Virology - August 10, 2023 Category: Virology Source Type: research
Renaming of the genus Flavivirus to Orthoflavivirus and extension of binomial species names within the family Flaviviridae
AbstractThis review provides a summary of the recently ratified changes to genus and species nomenclature within the virus familyFlaviviridae along with reasons for these changes. First, it was considered that the vernacular terms “flaviviral”, “flavivirus”, and “flaviviruses” could under certain circumstances be ambiguous due to the same word stem “flavi” in the taxon namesFlaviviridae andFlavivirus; these terms could either have referred to all viruses classified in the familyFlaviviridae or only to viruses classified in the included genusFlavivirus. To remove this ambiguity, the genus nameFlavivirus was ...
Source: Archives of Virology - August 10, 2023 Category: Virology Source Type: research
Turnip yellows virus variants differ in host range, transmissibility, and virulence
This study was designed to test the hypothesis that three TuYV isolates, representing each of the Australian P5 variants, differ phenotypically. In particular, the host range, vector species, transmissibility, and virulence of isolates 5414 (P5-I5414), 5509 (P5-II5509), and 5594 (P5-III5594) were examined in a series of glasshouse experiments. Only P5-I5414 readily infected faba bean (Vicia faba), only P5-II5509 infected chickpea (Cicer arietinum), and only P5-I5414 and P5-III5594 infected lettuce (Lactuca sativa).Myzus persicae transmitted each isolate, butBrevicoryne brassicae andLipaphis pseudobrassicae did not. When us...
Source: Archives of Virology - August 10, 2023 Category: Virology Source Type: research
Isolation, characterization, and evaluation of putative new bacteriophages for controlling bacterial spot on tomato in Brazil
AbstractBacterial spot is a highly damaging tomato disease caused by members of several species of the genusXanthomonas. Bacteriophages have been studied for their potential use in the biological control of bacterial diseases. In the current study, bacteriophages were obtained from soil and tomato leaves in commercial fields in Brazil with the aim of obtaining biological control agents against bacterial spot. Phage isolation was carried out by co-cultivation with isolates ofXanthomonas euvesicatoria pv.perforans, which was prevalent in the collection areas. In a host range evaluation, none of the phage isolates was able to...
Source: Archives of Virology - August 7, 2023 Category: Virology Source Type: research
Mpox: a review of laboratory detection techniques
AbstractMpox (formerly monkeypox) is a zoonotic disease caused by monkeypox virus (MPXV), which, like smallpox, is characterised by skin rashes. While the world is currently grappling with the coronavirus disease 2019 pandemic, the appearance of MPXV has presented a global threat and raised concerns worldwide. Since May 2022, MPXV has spread rapidly in non-endemic mpox areas. As of 27 June 2023, the virus has spread to more than 112 countries and regions, with over 88,060 laboratory-confirmed cases and 147 deaths. Thus, measures to control the mpox epidemic are urgently needed. As the principal methods for identifying and ...
Source: Archives of Virology - August 5, 2023 Category: Virology Source Type: research
Renaming of genera Ebolavirus and Marburgvirus to Orthoebolavirus and Orthomarburgvirus, respectively, and introduction of binomial species names within family Filoviridae
AbstractThe International Committee on Taxonomy of Viruses (ICTV)Filoviridae Study Group continues to prospectively refine the established nomenclature for taxa included in familyFiloviridae in an effort to decrease confusion of genus, species, and virus names and to adhere to amended stipulations of the International Code of Virus Classification and Nomenclature (ICVCN). Recently, the genus namesEbolavirus andMarburgvirus were changed toOrthoebolavirus andOrthomarburgvirus, respectively. Additionally, all established species names in familyFiloviridae now adhere to the ICTV-mandated binomial format. Virus names remain unc...
Source: Archives of Virology - August 3, 2023 Category: Virology Source Type: research
Evidence of insufficient genetic data and lack of regular genetic research on rabies virus in the Russian Federation: a study of the recent epizootic situation
AbstractThis paper attempts to point out a disparity between keeping rabies epidemiological statistics and rabies virus sequencing in the Russian Federation. While data on rabies prevention and laboratory detection are duly gathered, virus sequencing efforts remain insufficient. Along with a lack of public information and mass vaccination campaigns for wildlife and pets, this also might have an impact on the current rabies situation, which is of high risk in Russia. Additionally, drawing on GenBank data, it is suggested that some isolated rabies variants might be circulating in the country. (Source: Archives of Virology)
Source: Archives of Virology - August 3, 2023 Category: Virology Source Type: research
Renaming of genera Ebolavirus and Marburgvirus to Orthoebolavirus and Orthomarburgvirus, respectively, and introduction of binomial species names within family Filoviridae
AbstractThe International Committee on Taxonomy of Viruses (ICTV)Filoviridae Study Group continues to prospectively refine the established nomenclature for taxa included in familyFiloviridae in an effort to decrease confusion of genus, species, and virus names and to adhere to amended stipulations of the International Code of Virus Classification and Nomenclature (ICVCN). Recently, the genus namesEbolavirus andMarburgvirus were changed toOrthoebolavirus andOrthomarburgvirus, respectively. Additionally, all established species names in familyFiloviridae now adhere to the ICTV-mandated binomial format. Virus names remain unc...
Source: Archives of Virology - August 3, 2023 Category: Virology Source Type: research
